Abstract

Provided are a selenium-dot chimeric probiotic and a preparation method therefor and the use thereof, wherein the selenium-dot chimeric probiotic comprises a probiotic and elemental selenium grown in-situ on the surface of the probiotic. Using a probiotic as the main structure, a probiotic with selenium dots grown in-situ on the surface is prepared by means of in-situ reduction. The preparation method is simple, and the process is simple to operate and easy to implement. In addition, the selenium-dot chimeric probiotic not only retains the biological activity of the probiotic itself, but also has the function of nano selenium, and shows better therapeutic effects on inflammation-related diseases. Furthermore, the provided preparation method enriches the preparation of engineered probiotics, and further expands the application of probiotics in the fields of nanomedicine and animal feeding.

IPC Classes  ?

• C12N 1/20 - BacteriaCulture media therefor
• A61K 35/747 - Lactobacilli, e.g. L. acidophilus or L. brevis
• A61K 33/04 - Sulfur, selenium or telluriumCompounds thereof
• A61P 1/00 - Drugs for disorders of the alimentary tract or the digestive system

Abstract

3.

IPC Classes  ?

• C22B 11/00 - Obtaining noble metals
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof

Abstract

The present application relates to the technical field of non-ferrous metallurgy. Disclosed is a method for extracting and separating vanadium from a vanadium-arsenic solution by using a hydrophobic eutectic solvent. The method comprises the following steps: S100, the preparation of a hydrophobic eutectic solvent: mixing a hydrogen bond acceptor and a hydrogen bond donor for reaction to form a hydrogen bond network, wherein the hydrogen bond acceptor comprises tetrabutyl ammonium chloride or tetrabutyl ammonium bromide, and the hydrogen bond donor comprises n-octanol, n-nonanol, or n-decanol; and S200, the extraction and separation of vanadium: mixing the hydrophobic eutectic solvent with a vanadium-arsenic solution, oscillating the mixture and then leaving same to stand for phase separation, and performing reverse extraction after phase separation. The method of the present application can be applied to the accurate separation of vanadium from arsenic, tungsten and other impurities in vanadium crystals; by using the hydrophobic eutectic solvent, the pH value of the solution does not need to be deliberately adjusted during the extraction and separation process of vanadium and arsenic; and operation is easy, and the method has good economy and high safety, such that the method can greatly reduce the safety risk during the extraction process, and has good application prospects in the extraction and separation of vanadium and arsenic.

IPC Classes  ?

• C22B 34/22 - Obtaining vanadium
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C22B 34/36 - Obtaining tungsten
• C22B 30/04 - Obtaining arsenic
• C22B 3/40 - Mixtures

Abstract

Disclosed in the invention are a lithium-rich manganese-based positive electrode material, a preparation method therefor and an application thereof. The lithium-rich manganese-based positive electrode material comprises a lithium-rich manganese-based positive electrode material core and a shell coated on the surface of the core. The shell comprises a first coating and a second coating. The first coating comprises a composite oxide of Al, Zr, Ce and La and an n-type thermoelectric material. The second coating comprises a composite carbon material, a hydrogen-containing lithium titanium oxide compound and molybdenum disulfide. The lithium-rich manganese-based positive electrode material of the present application has excellent specific discharge capacity, rate capability and cycle stability, and has broad application prospects.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• C01B 32/194 - After-treatment
• C01G 53/00 - Compounds of nickel
• H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
• H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

The present invention discloses a cyclopeptide glass and a pharmaceutical composition glass containing a cyclopeptide. The cyclopeptide glass of the present invention can simultaneously exert efficacy and function as a drug adjuvant. Compared with crystals and traditional drug dosage forms or adjuvants, the cyclopeptide glass effectively increases a drug dissolution rate, improves drug bioavailability, and may be widely used in the fields of drug delivery and sustained release for resistance to tumors, resistance to viruses/bacteria, blood sugar control, immune regulation, neuromodulation, etc.

IPC Classes  ?

• C07K 7/66 - Gramicidins S, CTyrocidins A, B, CRelated peptides
• A61K 38/00 - Medicinal preparations containing peptides
• A61P 31/04 - Antibacterial agents
• C07K 5/12 - Cyclic peptides
• C07K 7/58 - BacitracinsRelated peptides
• C07K 9/00 - Peptides having up to 20 amino acids, containing saccharide radicals and having a fully defined sequenceDerivatives thereof

Abstract

222 and a diol and has a relatively high industrial application value.

IPC Classes  ?

• B01J 31/02 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
• B01J 23/10 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of rare earths
• C07D 317/36 - Alkylene carbonatesSubstituted alkylene carbonates
• C07D 317/38 - Ethylene carbonate

Abstract

A method for enriching carbon dioxide and hydrogen by water-gas shift coupling of blast furnace gas is disclosed in the present application, belonging to the technical field of flue gas resource utilization, where the method includes: purifying the blast furnace gas by a dry purification method, followed by heating and mixing with water vapor, allowing for water vapor shift coupling reaction under an action of a catalyst to obtain a mixed gas of carbon dioxide and hydrogen; adsorbing the mixed gas of carbon dioxide and hydrogen with a carbon dioxide adsorbent and desorbing to obtain carbon dioxide; introducing a gas not adsorbed by the carbon dioxide adsorbent into a molecular sieve adsorbent to remove impurities, then obtaining a hydrogen. Blast furnace gas is used as raw material, and hydrogen is provided for subsequent hydrogen smelting while realizing carbon enrichment in the blast furnace process.

IPC Classes  ?

• C01B 3/58 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solidsRegeneration of used solids including a catalytic reaction

Abstract

Disclosed in the present invention are a device system and method having sintering flue gas CO catalytic heat exchange and medium-and-low-temperature SCR denitration connected in series. In the device system, a CO catalytic heat storage and exchange device is arranged to completely replace an original heat exchanger arranged after a raw desulfurized flue gas pipe. The method comprises respectively carrying out first CO catalytic conversion and second CO catalytic conversion on sintering flue gas and denitrated flue gas by means of the CO catalytic heat storage and exchange device, thereby increasing CO conversion efficiency and reducing overall resistance of the system. In addition, the present invention takes both CO pollution control and carbon emission reduction into consideration and thus has good economic benefits and a good application prospect.

IPC Classes  ?

• B01D 53/34 - Chemical or biological purification of waste gases
• B01D 53/86 - Catalytic processes
• B01J 21/06 - Silicon, titanium, zirconium or hafniumOxides or hydroxides thereof
• B01J 21/16 - Clays or other mineral silicates
• B01J 23/30 - Tungsten
• B01J 35/57 - Honeycombs

Abstract

A single-atom catalyst with molecular sieve-confined domains and a preparation method and application thereof are provided in the present disclosure. According to the present disclosure, the physical structure and chemical anchoring action of the molecular sieve are utilized to confine the bimetallic ions, so that the bimetallic ions of the catalyst are dispersed in single atoms, electrons in the bimetallic ions are transferred from transition metals to precious metals to promote d-π* orbital hybridization to enhance NO adsorption, and an electron-rich environment and sufficient active sites are provided for NO adsorption and dissociation in the CO-SCR reaction; the transition metals adsorb CO to promote the transformation of N2O, NO2 and other intermediates into N2, and the transition metal serves as a sacrificial site for the poisoning of SO2 to enhance the sulphur-resistant property of the catalyst.

IPC Classes  ?

• B01J 29/48 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
• B01D 53/86 - Catalytic processes
• B01J 35/30 - Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
• B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts
• B01J 37/02 - Impregnation, coating or precipitation
• B01J 37/03 - PrecipitationCo-precipitation
• B01J 37/04 - Mixing
• B01J 37/06 - Washing

Abstract

The present invention provides a biomolecular glass and a use thereof. The biomolecular glass is obtained from a biomolecular raw material solution by means of a volatile solvent, and the biomolecular raw material solution comprises a biomolecular raw material, a regulator, and a solvent; the biomolecular raw material comprises a natural amino acid or a peptide or an amino acid derivative or a peptide derivative, or a mixture of two or more thereof. The soluble biomolecular glass of the present invention has excellent biocompatibility, high light transmittance, good mechanical strength, flexible processability and biodegradability, can be processed into implantable or non-implantable medical materials and/or devices, filling and scaffold materials, electronic sensing materials and/or devices, transient electronic materials and/or devices, etc., and can be degraded by organisms or in nature, and degradation products are pollution-free.

IPC Classes  ?

• A61L 31/04 - Macromolecular materials
• C07C 233/47 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom having the carbon atom of the carboxamide group bound to a hydrogen atom or to a carbon atom of an acyclic saturated carbon skeleton
• A61L 27/22 - Polypeptides or derivatives thereof
• A61L 27/50 - Materials characterised by their function or physical properties
• A61L 31/14 - Materials characterised by their function or physical properties
• G01D 5/12 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means

Abstract

Provided are a soluble biomolecule glass microneedle and a method for preparing same. The microneedle comprises a microneedle array and a substrate. At least part of the microneedle array consists of biomolecule glass. The biomolecule glass consists of a biomolecule, an inducer, and a solvent of a trace amount. The microneedle of the present invention has good mechanical strength, and can completely and smoothly pierce into skin and a mucous membrane, adjust and quickly release the biomolecule, and effectively improve the bioavailability of the biomolecules. The needle tip of the microneedle completely consists of the biomolecule. After release, the needle tip can be completely absorbed by the body, thus avoiding increases in the metabolic burden in the body. The microneedle of the present invention features high loading capacity and a simple and fast preparation process and is suitable for industrial production.

IPC Classes  ?

• A61K 9/00 - Medicinal preparations characterised by special physical form
• A61K 8/365 - Hydroxycarboxylic acidsKetocarboxylic acids
• A61K 8/362 - Polycarboxylic acids
• A61K 8/36 - Carboxylic acidsSalts or anhydrides thereof
• A61Q 19/00 - Preparations for care of the skin
• A61M 37/00 - Other apparatus for introducing media into the bodyPercutany, i.e. introducing medicines into the body by diffusion through the skin
• A61K 47/26 - Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharidesDerivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
• A61K 47/12 - Carboxylic acidsSalts or anhydrides thereof
• A61K 47/02 - Inorganic compounds
• A61K 47/04 - Non-metalsCompounds thereof
• A61K 8/60 - SugarsDerivatives thereof
• A61P 3/10 - Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics

Abstract

Provided is a high-yield method and kit for preparing mRNA by reducing or inhibiting double-stranded ribonucleic acid (dsRNA) formation during in vitro transcription. The preparation method is to add solid phase media during a transcription process. Compared with the existing technology, the present invention has the following advantages: according to the high-yield method and kit for preparing mRNA, different types of negatively charged solid phase media are added during the in vitro transcription, reducing the production of dsRNA by interface regulation, and improving the yield and stability of mRNA; in addition, the transfection efficiency of the mRNA prepared by solid phase regulation is improved, and the expression of immune factors is reduced. The solid phase media used in the method and kit are insoluble in water and do not contaminate the transcription system; after the transcription is completed, the solid phase media can be easily separated, and the operation is simple; after proper treatment, the solid phase media can be reused, thus the method and kit have low costs and can be easily scaled up to industrial-scale production.

IPC Classes  ?

• C12N 15/10 - Processes for the isolation, preparation or purification of DNA or RNA

Abstract

Provided are a method of controllably reducing an oxygen content, a method of preparing titanium metal powder, and a method of preparing Ti6Al4V alloy powder. The method of controllably reducing an oxygen content can accurately control the removal amount of oxygen in titanium oxide or vanadium aluminum alloy by introducing a calcium-containing substance into titanium source and/or vanadium source and using aluminum powder in combination as a reductant, and a simple wet treatment is performed on a reduced material obtained after reduction treatment to achieve separation of a reduction by-product and a first reduction powder to obtain high-purity titanium oxide or high-purity vanadium aluminum alloy, thereby providing theoretical and practical bases for preparing a low-valent titanium oxide having a specific oxygen content, a titanium metal powder having a low oxygen content, a vanadium aluminum alloy having a low oxygen content, and a Ti6Al4V alloy having a low oxygen content.

IPC Classes  ?

• B22F 9/20 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from solid metal compounds
• B22F 1/145 - Chemical treatment, e.g. passivation or decarburisation
• C22C 1/04 - Making non-ferrous alloys by powder metallurgy
• C22C 14/00 - Alloys based on titanium

Abstract

The present application relates to the field of electrochemical analysis and detection, and in particular to an electrochemical nucleic acid detection sensing element and electrochemical nucleic acid detection method based on RPA and CRISPR/Cas. According to the present application, RPA technology, a CRISPR/Cas tool, and electrochemical detection technology are combined, and additionally, an electrochemical active molecule and a modification group are linked to a reporter molecule in a CRISPR/Cas reaction system, such that construction of an immobilization-free and homogeneous electrochemical nucleic acid detection method is realized, and detection of the target nucleic acid can be realized.

IPC Classes  ?

• G01N 27/26 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variablesInvestigating or analysing materials by the use of electric, electrochemical, or magnetic means by using electrolysis or electrophoresis
• G01N 27/48 - Systems using polarography, i.e. measuring changes in current under a slowly-varying voltage

Abstract

The present application relates to the field of electrochemical analysis and detection, and provides a CRISPR/Cas-based electrochemical nucleic acid detection sensing element and a detection method. The element comprises non-immobilized reporter molecules, and each reporter molecule comprises at least one electrochemically active molecule and at least one nucleotide, and is a non-specific nucleic acid molecule. The present application does not need to immobilize the reporter molecules on the surface of an electrode, and can establish a homogeneous-phase, real-time and non-immobilized CRISPR/Cas sensing system, thereby realizing real-time monitoring of an electrochemical nucleic acid detection process under a homogeneous phase and repeated detection of an electrode on an electrochemical nucleic acid system under the homogeneous phase flow.

IPC Classes  ?

• G01N 27/327 - Biochemical electrodes
• G01N 21/64 - FluorescencePhosphorescence
• C12Q 1/6825 - Nucleic acid detection involving sensors

Abstract

The present application provides an electrochemical micro-fluidic chip and a nucleic acid testing method. The electrochemical micro-fluidic chip comprises a base plate and a flow channel chamber member, and an electrode reaction area is provided on the base plate; one side of the flow channel chamber member is connected to the base plate; reaction testing cavities, flow channels, and a sample inlet hole are formed in the flow channel chamber member, the flow channels are communicated with the reaction testing cavities and the sample inlet hole, and the sample inlet hole opens at the side opposite to the base plate; a CRISPR/Cas reactant suitable for reacting with a nucleic acid under test is provided in the reaction testing cavities, the side of each reaction testing cavity close to the base plate is open, the opening end of each reaction testing cavity is arranged on the surface of the electrode reaction area, and during testing, an operator can put a sample under test in the flow channels through the sample inlet hole, so that said sample enters the reaction testing cavities through the flow channels to react with the CRISPR/Cas reactant provided in the reaction testing cavities, thereby effectively reducing the overall size of the electrochemical micro-fluidic chip and reducing the costs of the electrochemical micro-fluidic chip.

IPC Classes  ?

• B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers
• C12Q 1/68 - Measuring or testing processes involving enzymes, nucleic acids or microorganismsCompositions thereforProcesses of preparing such compositions involving nucleic acids

Abstract

Disclosed herein is a leaching method for nickel laterite ore. The leaching method comprises the following steps: mixing the nickel laterite ore with hydrochloric acid, then leaching to obtain a leachate and a leaching residue; heating and hydrolyzing the leachate to obtain iron slag and hydrolysate; performing neutralization aluminum precipitation on the hydrolysate to obtain aluminum slag and aluminum precipitation solution; precipitating nickel from the aluminum precipitation solution to obtain nickel precipitation slag and post-nickel precipitation solution, then pyrolyzing the post-nickel precipitation solution to obtain reclaimed magnesium oxide and hydrochloric acid; the nickel precipitation slag is reused in the neutralization aluminum precipitation process. The leaching method can significantly reduce the volume of solution processing, reduce the number of neutralizing agent additions and the number of neutralizations, increase the concentration of nickel ions in the solution, reduce overall equipment investment, and lower production costs.

IPC Classes  ?

• C22B 23/00 - Obtaining nickel or cobalt
• C22B 3/10 - Hydrochloric acid

Abstract

A micro-fluidic chip and a method for using same. The micro-fluidic chip comprises a substrate (1), a driving unit, and a detection unit, wherein the substrate (1) is provided with a sample injection cavity (101) and a discharge cavity (102), and the sample injection cavity (101) and the discharge cavity (102) are communicated by means of a micro-fluidic channel; the micro-fluidic chip further comprises a plurality of groups of first reaction chambers (103) and second reaction chambers (104) that are arranged in series and correspondingly connected in parallel between the sample injection cavity (101) and the discharge cavity (102); a first driving member (21) is used for driving a sample to flow into the reaction chambers along the micro-fluidic channel; and the detection unit is used for detecting electric signals. Also disclosed is a method for using the micro-fluidic chip. For the micro-fluidic chip, a plurality of incubation and detection paths are constructed by means of the plurality of groups of first reaction chambers (103) and second reaction chambers (104) that are arranged in series, and the detection unit detects electric signals of incubation products in the second reaction chambers (104), so as to obtain corresponding detection results and balance sample detection. Samples can be detected in a variety of ways and multiple times.

IPC Classes  ?

• B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers
• C12Q 1/68 - Measuring or testing processes involving enzymes, nucleic acids or microorganismsCompositions thereforProcesses of preparing such compositions involving nucleic acids

Abstract

A polyimide random copolymer has a structure represented by formula (I). A method for preparing the polyimide random copolymer, a membrane made of the polyimide random copolymer, and a method for preparing a polyimide-based hollow fiber membrane are also provided. A system for purifying helium gas and a method for purifying helium gas are related to the membrane made of the polyimide random copolymer. A polyimide random copolymer has a structure represented by formula (I). A method for preparing the polyimide random copolymer, a membrane made of the polyimide random copolymer, and a method for preparing a polyimide-based hollow fiber membrane are also provided. A system for purifying helium gas and a method for purifying helium gas are related to the membrane made of the polyimide random copolymer.

IPC Classes  ?

• C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
• B01D 69/08 - Hollow fibre membranes
• B01D 69/10 - Supported membranesMembrane supports
• B01D 71/02 - Inorganic material
• B01D 71/64 - PolyimidesPolyamide-imidesPolyester-imidesPolyamide acids or similar polyimide precursors

Abstract

Disclosed are a measurement system for micro-mixing and a measurement method thereof. The measurement system comprises a mixing device, a light enhancement unit, an observation unit, an image acquisition unit, a display device and a tracer injection device; the light enhancement unit comprises a light-emitting device, a light-focusing device and a reflecting device; the observation unit comprises an observation window; the image acquisition unit comprises a distortion-free lens and an image acquisition device which are connected in sequence, and a central axis of the distortion-free lens is in alignment with a central axis of the observation window. The measurement method is performed in the measurement system provided by the present application. In the present application, the brightness of visual field is improved, the light interference on target image is shielded off, the process of micro-mixing can be observed in real time, and thereby the micro-mixing efficiency can be evaluated.

IPC Classes  ?

• G01N 21/84 - Systems specially adapted for particular applications
• B01F 35/214 - Measuring characterised by the means for measuring
• G01N 21/17 - Systems in which incident light is modified in accordance with the properties of the material investigated

Abstract

Provided are a device for photovoltaic power generation and a method therefor. The device for photovoltaic power generation comprises a photovoltaic power generating reactor comprising a light-transmitting surface, a light condenser component and an external electric field system; the light condenser component comprises a solar concentrating cone and a reflector for reflecting sunlight onto the solar concentrating cone; the solar concentrating cone has a light-concentrating surface facing the light-transmitting surface of the photovoltaic power generating reactor; the external electric field system comprises a positive electric field metal plate and a negative electric field metal plate, the positive electric field metal plate is arranged between the photovoltaic power generating reactor and the solar concentrating cone, and the negative electric field metal plate is arranged at the bottom of the photovoltaic power generating reactor; and the photovoltaic power generating reactor is arranged with a photoelectric conversion material inside.

IPC Classes  ?

• H02S 40/22 - Light-reflecting or light-concentrating means
• H01G 9/20 - Light-sensitive devices

Abstract

Disclosed are a hydrogenation catalyst, a preparation method therefor and use thereof. The hydrogenation catalyst includes a carrier and an active component supported on the carrier, wherein the carrier is nitrogen-doped carbon, and the active component is a bimetal selected from Ru—Fe, Ru—Co, Ru—Ni or Ru—Cu.

IPC Classes  ?

• B01J 37/02 - Impregnation, coating or precipitation
• B01J 23/89 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with noble metals
• B01J 27/24 - Nitrogen compounds
• B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts
• B01J 37/18 - Reducing with gases containing free hydrogen
• B01J 37/34 - Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves
• C07C 209/36 - Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings

Abstract

Disclosed are a polycarbonate and a preparation method therefor and an application thereof. The polycarbonate comprises at least one of structural units selected from a structural unit represented by formula (I) and a structural unit represented by formula (II). The polycarbonate provided by the present application has a high refractive index, and the obtained polycarbonate has a refractive index of 1.673-1.794, which can satisfy performance requirements of polycarbonate as an optical resin in optical components. Disclosed are a polycarbonate and a preparation method therefor and an application thereof. The polycarbonate comprises at least one of structural units selected from a structural unit represented by formula (I) and a structural unit represented by formula (II). The polycarbonate provided by the present application has a high refractive index, and the obtained polycarbonate has a refractive index of 1.673-1.794, which can satisfy performance requirements of polycarbonate as an optical resin in optical components.

IPC Classes  ?

• C08G 64/08 - Aromatic polycarbonates not containing aliphatic unsaturation containing atoms other than carbon, hydrogen or oxygen
• C08G 64/30 - General preparatory processes using carbonates
• G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics

Abstract

Disclosed in the present invention are a tissue-selective single-component mRNA delivery carrier and a delivery system. The delivery carrier uses a poly(β-amino ester) polymer as a single-component delivery carrier, wherein the poly(β-amino ester) polymer has a structure as shown in formula I or formula II. In the present invention, only a poly(β-amino ester) polymer material is used as a single delivery carrier, and the targeted enrichment of a system in different tissues, comprising lung, liver, spleen, etc., is achieved by means of locally regulating the chemical structure and charge micro-region of the poly(β-amino ester) polymer.

IPC Classes  ?

• A61K 48/00 - Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseasesGene therapy
• A61K 47/54 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
• A61P 1/00 - Drugs for disorders of the alimentary tract or the digestive system

Abstract

The present invention relates to the technical field of wet processing of nickeliferous laterite ores. Disclosed is a two-stage normal-pressure hydrochloric acid combined leaching method for nickeliferous laterite ores. The method comprises: first subjecting limonitic nickeliferous laterite ore powder to normal-pressure leaching with hydrochloric acid, so as to obtain primary leachate and primary leaching residues; mixing the primary leachate with humite nickeliferous laterite ores, and subjecting the resulting mixture to secondary leaching, so as to obtain secondary leachate and secondary leaching residues; returning the secondary leaching residues and mixing same with limonitic nickeliferous laterite ores, and subjecting the resulting mixture to primary acid leaching; and subjecting the secondary leachate to neutralization for iron and aluminum precipitation and neutralization for nickel precipitation, so as to obtain iron-aluminum residues, nickel-cobalt residues and a magnesium chloride solution, refining the nickel-cobalt residues to obtain a nickel-cobalt product, and subjecting magnesium chloride waste liquid to pyrolysis to obtain hydrochloric acid and magnesium oxide. The comprehensive utilization rate of hydrochloric acid can be increased, the treatment amount of the solution and the addition amounts of hydrochloric acid and magnesium oxide are reduced, the concentration of nickel ions in the solution is increased, the filtering performance of the leachate is improved, and huge social and economic values are achieved.

IPC Classes  ?

• C22B 3/06 - Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions
• C22B 23/00 - Obtaining nickel or cobalt

Abstract

Disclosed in the present application is a microfluidic multi-target detection system based on fluidized-bed magnetic enrichment and CDs/QDs@ZIF-8 physical amplification. The system comprises capture magnetic particles, a fluidized-bed magnetic enrichment micro-fluidic chip, a CDs/QDs@ZIF-8 biological tracer and a dissolution release agent, wherein the capture magnetic particles can synchronously separate and enrich multiple targets among a large-volume sample under test in the fluidized-bed magnetic enrichment micro-fluidic chip; the CDs/QDs@ZIF-8 biological tracer can respectively identify multiple enriched targets by loading different carbon dot or quantum dot fluorescence signals; and each identification signal is enhanced by using the dissolution release agent, such that the multiple targets in said sample can be detected with high sensitivity; in addition, the system also has the characteristics of high integration and a high degree of automation.

IPC Classes  ?

• G01N 33/553 - Metal or metal coated
• G01N 33/58 - Chemical analysis of biological material, e.g. blood, urineTesting involving biospecific ligand binding methodsImmunological testing involving labelled substances
• G01N 33/569 - ImmunoassayBiospecific binding assayMaterials therefor for microorganisms, e.g. protozoa, bacteria, viruses
• G01N 33/577 - ImmunoassayBiospecific binding assayMaterials therefor involving monoclonal antibodies
• G01N 21/64 - FluorescencePhosphorescence
• C09K 11/65 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing carbon
• C09K 11/02 - Use of particular materials as binders, particle coatings or suspension media therefor
• B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers

Abstract

Provided are a system for preparing isotope-labeled carbon dioxide and a method therefor. The preparation method comprises: vaporizing heavy-oxygen water and mixing the heavy-oxygen water with carbon dioxide, and subjecting the heavy-oxygen water and the carbon dioxide to an oxygen-exchange reaction by catalyzing them with a catalytic material, and performing gas-liquid separation after the reaction to obtain the isotope-labeled carbon dioxide. The system provided by the present application has a simple structure, and by adopting the heavy-oxygen water which has a wide source and low cost as an oxygen isotope source and utilizing the oxygen-exchange reaction, the replacement of oxygen-16 in normal carbon dioxide by oxygen-18 in heavy-oxygen water is achieved to obtain the oxygen-18 labeled carbon dioxide product. The process is simple and pollution-free, the utilization rate of oxygen isotope is high, the conditions of separation and purification are mild, and the system has good economic benefits and application prospects.

IPC Classes  ?

• C01B 32/50 - Carbon dioxide
• B01D 53/00 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
• B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
• B01J 19/24 - Stationary reactors without moving elements inside
• B01J 21/04 - Alumina

Abstract

The present application discloses an extraction tower and an extraction process for metal separation in a lateritic nickel ore acid leaching solution. The extraction tower comprises an extraction tower cylinder and an air distribution apparatus; the inside of the extraction tower cylinder is provided with a containing cavity for containing a continuous phase and a dispersed phase; the continuous phase and the dispersed phase are in countercurrent contact in the containing cavity; and the extraction tower cylinder and the gas distribution apparatus are connected, allowing the gas distribution apparatus to input gas into the containing cavity. In the present application, providing the air distribution apparatus in the containing cavity of the extraction tower allows for controlling the diameter of an air outlet of the air distribution apparatus to be within a suitable range, utilizing a turbulence effect from bubbles floating upward in the liquid phase, colliding and cutting through the dispersed phase to form dispersed phase droplets of suitable dimensions. Moreover, the coordinated regulation of the amount of gas injected and the diameter of the air outlet being within a proper range is used for increasing mass transfer driving force, thereby enhancing a mass transfer effect.

IPC Classes  ?

• C22B 3/26 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
• B01D 11/04 - Solvent extraction of solutions which are liquid
• C22B 23/00 - Obtaining nickel or cobalt

Abstract

An industrial utilization-based field crop straw classification method and device. The field crop straw classification method comprises: mechanically defibrating straws to separate fibrovascular tissues and parenchyma of the straws so as to obtain prefabricated mixed materials, and classifying the prefabricated mixed materials to obtain a long-fiber material and a short-fiber material. In respect of the problem of the lack of a fine classification mode in industrial utilization of the straws, the straw materials are classified into long fibers and short fibers in a mechanical defibration-classification mode, such that the classified materials can meet different industrial utilization requirements and are easier to compress, thus reducing transportation and storage costs.

IPC Classes  ?

• B07B 13/00 - Grading or sorting solid materials by dry methods, not otherwise provided forSorting articles otherwise than by indirectly controlled devices
• B09B 3/30 - Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
• B09B 3/00 - Destroying solid waste or transforming solid waste into something useful or harmless
• B27J 1/00 - Mechanical working of cane or the like
• D21B 1/02 - Pretreatment of the raw materials by physical or chemical means
• D21B 1/00 - Fibrous raw materials or their mechanical treatment
• D01B 1/10 - Separating vegetable fibres from stalks or leaves
• D01B 1/00 - Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks

Abstract

Disclosed in the present application is a method for mRNA capping. The method comprises connecting mRNA to a stationary phase and carrying out a capping reaction to obtain a capped mRNA. The present application creatively establishes an immobilized mRNA-based capping reaction-separation coupling strategy and provides an efficient, simple, convenient, and low-cost capping method, and the capping operation can be carried out intermittently and can also be continuously carried out on a column. The present application provides a research basis for the development and application of a novel mRNA production process.

IPC Classes  ?

• C12N 15/10 - Processes for the isolation, preparation or purification of DNA or RNA
• C12P 19/34 - Polynucleotides, e.g. nucleic acids, oligoribonucleotides

Abstract

The present application provides a method for separating and purifying phosphoric acid and phosphogypsum from a wet-process phosphoric acid slurry, and phosphoric acid and phosphogypsum prepared thereby. The method comprises: adding an impurity-removing agent to a wet-process phosphoric acid slurry, and mixing same under the action of a microbubble external field, so as to obtain an organic phase containing colloidal impurities, and an ore slurry, from which impurities have been removed; and then sequentially subjecting the ore slurry, from which impurities have been removed, to crystallization and solid-liquid separation, so as to obtain phosphoric acid and phosphogypsum, from which impurities have been removed. In the method, by using the impurity-removing agent in cooperation with the microbubble external field, the adhesion of impurities is enhanced by using microbubbles, and energy is provided during the floating and crushing process of the microbubbles so as to crush large particles of phosphogypsum in the slurry and make the impurity-removing agent fully react with the slurry; and such process is beneficial for the dissociation, precipitation and separation of colloidal silicon and carbon impurities, such that the aim of in-situ removal and rapid separation of colloidal impurities to obtain the ore slurry, from which impurities have been removed, during a reaction process for outputting phosphogypsum is realized, and a low-impurity phosphoric acid product and phosphogypsum product can be obtained after the ore slurry, from which impurities have been removed, has been further treated.

IPC Classes  ?

• C01B 25/237 - Selective elimination of impurities
• C01F 11/46 - Sulfates

Abstract

Provided is a hydrolysis reaction device for dechlorination and decyanation of blast furnace gas, including a tower body, where a top of the tower body is provided with an air inlet channel, and a bottom of the tower body is provided with an air outlet channel, and functional zones are arranged in the tower body. The functional zones are sequentially an air inlet zone, a first protective agent zone, a first transition zone, a second protective agent zone, a second transition zone, a hydrolysis zone and an air outlet zone along a gas direction, and adjacent functional zones are communicated. Feed holes and discharge holes are uniformly arranged on an outer side surface of the tower body. Gas in a tower radially passes through the protective agent zones and the hydrolysis zone.

IPC Classes  ?

• B01D 53/75 - Multi-step processes
• B01D 53/04 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
• B01D 53/48 - Sulfur compounds
• B01D 53/68 - Halogens or halogen compounds
• B01D 53/82 - Solid phase processes with stationary reactants

Abstract

Disclosed are a targeting nanoscale particle, a targeting cell, a preparation method therefor, and use thereof. The targeting nanoscale particle is bound to the outer surface of the targeting cell, and is composed of a plurality of proteins interconnected by means of a first binding portion. The targeting nanoscale particle further comprises a second binding portion, and is bound to the outer surface of a target cell by means of the second binding portion. In an exemplary embodiment, the targeting nanoscale particle can bind to a chimeric antigen receptor T cell and a leukemia cell at the same time to promote the interaction between the two cells, thereby promoting the recognition and killing of the leukemia cell by the chimeric antigen receptor T cell. In addition, the internal cavities of the proteins in the targeting nanoscale particle provide space for loading of a chemotherapeutic drug, thus realizing the combination therapy of the chimeric antigen receptor T cell and other therapies while loading the drug.

IPC Classes  ?

• A61K 9/16 - AgglomeratesGranulatesMicrobeadlets
• A61K 35/12 - Materials from mammalsCompositions comprising non-specified tissues or cellsCompositions comprising non-embryonic stem cellsGenetically modified cells
• A61K 47/42 - ProteinsPolypeptidesDegradation products thereofDerivatives thereof, e.g. albumin, gelatin or zein
• A61P 35/00 - Antineoplastic agents

Abstract

mmm is a C8 to C18 acyl group, and Z is a C capping group, The peptide hydrogel has a positive characteristic peak in the range of 190-210 nm and a negative singlet in the range of 210-230 nm in a CD spectrum; and after the peptide hydrogel is dispersed into 1% SDS (lauryl sodium sulfate) solution, the CD spectrum has a positive characteristic peak in the range of 190-200 nm and a negative doublet in the range of 200-210 nm and 215-230 nm.

IPC Classes  ?

• A61K 38/08 - Peptides having 5 to 11 amino acids
• A61K 38/10 - Peptides having 12 to 20 amino acids
• A61K 38/16 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof
• A61K 9/06 - OintmentsBases therefor
• A61P 37/02 - Immunomodulators
• A61P 29/00 - Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agentsNon-steroidal antiinflammatory drugs [NSAID]
• A61P 1/02 - Stomatological preparations, e.g. drugs for caries, aphtae, periodontitis
• A61P 17/02 - Drugs for dermatological disorders for treating wounds, ulcers, burns, scars, keloids, or the like

Abstract

Provided in the present application are a compound for a delivery system and the use thereof, and an ionizable lipid having a hydrogen bond providing group.

IPC Classes  ?

• C07C 275/14 - Derivatives of urea, i.e. compounds containing any of the groups the nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of urea groups bound to acyclic carbon atoms of an acyclic and saturated carbon skeleton being further substituted by nitrogen atoms not being part of nitro or nitroso groups
• C07C 275/18 - Derivatives of urea, i.e. compounds containing any of the groups the nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of urea groups bound to acyclic carbon atoms of a saturated carbon skeleton containing rings
• C07D 295/03 - Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements containing only one hetero ring with the ring nitrogen atoms directly attached to acyclic carbon atoms
• C07D 295/08 - Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms
• A61K 47/18 - AminesAmidesUreasQuaternary ammonium compoundsAmino acidsOligopeptides having up to five amino acids
• A61K 9/127 - Synthetic bilayered vehicles, e.g. liposomes or liposomes with cholesterol as the only non-phosphatidyl surfactant
• A61P 43/00 - Drugs for specific purposes, not provided for in groups

Abstract

Provided are a device for hydrogen production from water photolysis and a method therefor, which belongs to the field of photocatalytic solar hydrogen production. The device for hydrogen production from water photolysis comprises: a catalytic reaction unit for water photolysis comprising a light-transmitting surface, and a light condenser component with a light-concentrating surface facing the light-transmitting surface of the catalytic reaction unit for water photolysis; the light condenser component comprises a solar concentrating cone and a reflector for reflecting and concentrating sunlight into the solar concentrating cone. In the present application, from the perspective of improving the utilization efficiency of sunlight, the device for hydrogen production from water photolysis is designed, which utilizes the light condenser component to concentrate solar energy into the catalytic reaction unit for water photolysis, greatly improving the light intensity and catalytic efficiency, and greatly simplifying the catalytic interface and reaction unit for water photolysis.

IPC Classes  ?

• C01B 3/00 - HydrogenGaseous mixtures containing hydrogenSeparation of hydrogen from mixtures containing itPurification of hydrogen
• B01J 19/12 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor employing electromagnetic waves
• B01J 21/06 - Silicon, titanium, zirconium or hafniumOxides or hydroxides thereof
• B01J 23/00 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group
• B01J 23/02 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the alkali- or alkaline earth metals or beryllium
• B01J 23/889 - Manganese, technetium or rhenium
• B01J 35/39 - Photocatalytic properties
• B01J 37/03 - PrecipitationCo-precipitation
• B01J 37/04 - Mixing
• B01J 37/08 - Heat treatment
• C01B 3/04 - Production of hydrogen or of gaseous mixtures containing hydrogen by decomposition of inorganic compounds, e.g. ammonia

Abstract

The present invention relates to the technical field of functional materials, and in particular to an amorphous metal oxide hollow multi-shell material and a preparation method therefor and an application thereof. The method includes the following steps: 1) performing a heating reaction on a carbon source aqueous solution, filtering, washing, and drying to obtain a carbon sphere template; 2) dispersing the carbon sphere template obtained in step 1) in a first metal salt solution, heating, adsorbing, and drying to obtain a first solid precursor; 3) dispersing the solid precursor obtained in step 2) in a second metal salt solution again, adsorbing, and drying to obtain a second solid precursor; and 4) calcinating the second solid precursor obtained in step 3) to obtain the amorphous metal oxide hollow multi-shell material. According to the present invention, a defect-controllable doping energy level is introduced into a metal oxide hollow sphere by means of a two-step enhanced adsorption method, so that efficient absorption of wave bands in a solar spectrum is achieved.

IPC Classes  ?

• C01G 35/00 - Compounds of tantalum
• B01D 1/00 - Evaporating
• C02F 1/04 - Treatment of water, waste water, or sewage by heating by distillation or evaporation
• C02F 1/14 - Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy

Abstract

The present application provides a composite positive electrode material and a preparation method therefor, and a lithium ion battery. The positive electrode material comprises a core and a cladding layer cladded on the surface of the core, the core comprises a lithium-rich positive electrode material, and the cladding layer comprises an n-type thermoelectric material. The method comprises: compounding the lithium-rich positive electrode material with the n-type thermoelectric material to obtain the composite positive electrode material. The compounding method comprises: method I, mixing the lithium-rich positive electrode material with the n-type thermoelectric material for treatment to obtain the composite positive electrode material; or method II, dispersing and treating raw materials of the lithium-rich positive electrode material and the n-type thermoelectric material to obtain the composite positive electrode material.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• C01G 53/00 - Compounds of nickel
• H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

The present invention discloses biodegradable glass based on an amino acid, a peptide and a derivative, as well as the preparation method and use thereof. The main raw material of the glass is one or more of an amino acid, a peptide, a derivative or salt thereof. Compared with traditional glass, the glass of the present invention has significant advantages such as high biocompatibility, biodegradability, being 3D printable, and being compostable, etc., and its preparation process is simple and green, which can effectively avoid the influence of the traditional glass on the ecological environment. The glass of the present invention has a wide range of applications in the fields such as medicine, building material, chemical industry, food, electronics, national defense, etc., including but not limited to tissue engineering, tooth/bone repair, drug sustained-release, cell/protein sequestration, optical fiber communication, coatings, precision instruments, etc.

IPC Classes  ?

• A61K 38/05 - Dipeptides
• A61K 6/836 - Glass
• A61K 31/198 - Alpha-amino acids, e.g. alanine or edetic acid [EDTA]
• C08L 89/00 - Compositions of proteinsCompositions of derivatives thereof

Abstract

An amino acid-based multifunctional water-based liquid, a preparation method therefor and a use thereof. In the water-based liquid, water is used as a solvent, and viscous droplets rich in amino acids, oligopeptides or/and amino acid/oligopeptide derivatives and having a particle size of 0.05-100 μm are dispersed in the water-based liquid. The amino acid-based water-based liquid does not contain any organic solvent, features a simple composition, good biocompatibility, ecological recycling, wide material source and low costs, can be used as a green solvent, a cell cryopreservation solution, a protein preservation solution, a micro enzymatic reactor and a biomedical adhesive of various active substances, and has wide application prospects.

IPC Classes  ?

• C07K 5/00 - Peptides having up to four amino acids in a fully defined sequenceDerivatives thereof
• A61L 24/00 - Surgical adhesives or cementsAdhesives for colostomy devices
• A01N 1/02 - Preservation of living parts
• C07K 14/805 - HaemoglobinsMyoglobins
• C12P 3/00 - Preparation of elements or inorganic compounds except carbon dioxide
• C12P 17/10 - Nitrogen as only ring hetero atom

Abstract

Disclosed are a group of surfactant-free methods for the manufacturing of polymer microspheres and microcapsules. The manufacturing processes involve droplet generation in the absence of surface-active substances and de-solvation of the droplets through solvent diffusion into a continuous phase composed of a mixture of amphiphilic solvent and water. The methods involve approaches for the manufacturing of isotropic polymer microspheres, core shell polymer microspheres, Janus microspheres, and microcapsules. In the manufacturing of isotropic polymer microspheres, polymer or polymer plus additive components are dissolved in water-immiscible organic solvent to obtain a dispersed phase. Mix of amphiphilic solvent and water is used as the continuous phase. The dispersed phase is dropletized in the continuous phase and therein de-solvated via solvent diffusion in the absence of surfactant to form solid isotropic microspheres. In the manufacturing of Janus microspheres, two polymer solutions each dissolved in water-immiscible organic solvent form a dispersed phase. Mix of amphiphilic solvent and water is used as the continuous phase. The dispersed phase is dropletized in the continuous phase and therein de-solvated via solvent diffusion in the absence of surfactant to form solid Janus microspheres. In the manufacturing of core shell polymer microspheres, a core solution in a solvent and a shell polymer solution dissolved in water-immiscible organic solvent form a dispersed phase. Mix of amphiphilic solvent and water is used as the continuous phase. The dispersed phase is dropletized in the continuous phase and therein de-solvated via solvent diffusion in the absence of surfactant to form solid core shell microspheres. In the manufacturing of microcapsules with polymer shell, a core solution in a solvent and a shell polymer solution dissolved in water-immiscible organic solvent form the dispersed phase. Mix of amphiphilic solvent and water is used as the continuous phase. The dispersed phase is dropletized in the continuous phase and therein de-solvated via solvent diffusion in the absence of surfactant to form microcapsules. By using these methods, the problems caused by the use of surfactants are eliminated, the use of toxic solvents is minimized, the throughput of the manufacturing processes is maximized, and the release of toxic solvents into the atmosphere and their resulting pollution are minimized while the solvents can be recycled.

IPC Classes  ?

• B01J 13/06 - Making microcapsules or microballoons by phase separation

Abstract

The present application provides a method for recycling a waste fiber-reinforced composite material. The recycling method comprises the following steps: (1) subjecting the waste fiber-reinforced composite material to crushing and soaking followed by microwave treatment to obtain a material A; (2) subjecting the material A obtained in step (1) to steam explosion treatment to obtain a material B; and (3) subjecting the material B obtained in step (2) to chemical treatment to obtain a recycled material. The recycling method provided by the present application combines mechanical treatment, microwave treatment, steam explosion treatment, and chemical treatment, and with a specific recycling process, improves the fiber recycling efficiency and realizes the resource recycling of the low-cost fiber composite material, and consumes little energy and has wide application.

IPC Classes  ?

• C08J 11/10 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
• C08J 11/16 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
• C08L 101/00 - Compositions of unspecified macromolecular compounds

Abstract

Disclosed in the present invention are a device system and method having sintering flue gas CO catalytic heat exchange and medium-and-low-temperature SCR denitration connected in series. In the device system, a CO catalytic heat storage and exchange device is arranged to completely replace an original heat exchanger arranged after a raw desulfurized flue gas pipe. The method comprises respectively carrying out first CO catalytic conversion and second CO catalytic conversion on sintering flue gas and denitrated flue gas by means of the CO catalytic heat storage and exchange device, thereby increasing CO conversion efficiency and reducing overall resistance of the system. In addition, the present invention takes both CO pollution control and carbon emission reduction into consideration and thus has good economic benefits and a good application prospect.

IPC Classes  ?

• B01D 53/86 - Catalytic processes
• B01D 53/56 - Nitrogen oxides
• B01D 53/62 - Carbon oxides

Abstract

A method for reducing waste sulfuric acid by using microwave-enhanced carbon, the method comprising the following steps: (1) soaking a carbon material by using waste sulfuric acid to obtain a mixture; and (2) carrying out microwave heating on the mixture to react same and obtain sulfur dioxide gas and sulfonated carbon.

IPC Classes  ?

• B01J 19/12 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor employing electromagnetic waves
• B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
• B01D 53/04 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
• B01D 53/00 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
• B01D 53/50 - Sulfur oxides
• B01D 53/78 - Liquid phase processes with gas-liquid contact
• B01J 20/20 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbonSolid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
• B01J 20/32 - Impregnating or coating
• C01B 17/04 - Preparation of sulfurPurification from gaseous sulfur compounds including gaseous sulfides
• C01B 17/50 - Preparation of sulfur dioxide

Abstract

Disclosed herein are a composite positive electrode material, a preparation method therefor, and an application in a zinc ion battery. The composite positive electrode material comprises: a sulfur-doped three-dimensional network structure conductive polymer/graphene/carbon nanotube composite carbon material, and vanadium tetrasulfide nanoparticles that are loaded on the surface of the composite carbon material; said surface comprises at least one among the outer surface of conductive polymer particles, the sheet-layer surface and interlayer of graphene, and the outer surface of carbon nanotubes.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
• H01M 4/04 - Processes of manufacture in general
• H01M 10/36 - Accumulators not provided for in groups

Abstract

A method for clean recovery of palladium is provided, including the following steps: mixing a palladium-containing material, a Ce4+-containing acidic solution, and an additive, subjecting a resulting mixture to leaching to obtain a Pd2+-containing solution, and subjecting the Pd2+-containing solution to electrolysis to obtain palladium. In the method, the palladium-containing material is subjected to solution leaching with Ce4+ as an oxidative leaching agent and a chlorine-containing additive. After leaching is complete, a Ce4+ and Pd2+-containing leaching liquor is subjected to electrolysis to realize the green regeneration of Ce4+ and palladium. The method of the present disclosure does not lead to the generation of NOx and waste liquid. The present disclosure can significantly reduce the environmental impact and production cost and has excellent economic benefits and application prospects.

IPC Classes  ?

• C25C 1/20 - Electrolytic production, recovery or refining of metals by electrolysis of solutions of noble metals
• C22B 11/00 - Obtaining noble metals
• C22B 3/08 - Sulfuric acid

Abstract

Disclosed herein are a preparation method for an alicyclic carbamate and the use thereof. The preparation method comprises the following steps: mixing a carbamate containing an aromatic ring, a catalyst and a solvent, and then introducing hydrogen for reaction to obtain the alicyclic carbamate, wherein the catalyst comprises a carrier and an active component, which is loaded on the carrier, the active component comprising any one or a combination of at least two of Pt, Rh, Ru, Ir or Pd. The preparation method for the alicyclic carbamate provided in the present application has mild reaction conditions, easy operation, low potential safety hazard and a high yield of the alicyclic carbamate, is suitable for multiple reactors, is easy for large-scale continuous production, and has good industrial application prospects.

IPC Classes  ?

• C07C 269/06 - Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups the nitrogen atom not being part of nitro or nitroso groups by reactions not involving the formation of carbamate groups
• C07C 271/24 - Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atom of at least one of the carbamate groups bound to a carbon atom of a ring other than a six-membered aromatic ring

Abstract

The present application discloses a pellet flue gas circulation and waste heat utilization process and a system thereof, which relates to the technical field of flue gas treatment. The system includes a grate, a rotary kiln, an annular cooler, and ducts connecting each part. On the basis of not changing the existing process a flue gas circulation unit and intelligent control equipment are arranged additionally in the present application. The process is simple, and not only can ensure the parameter stability of the production system such as temperature, gas flow or gas pressure, but also can make full use of the low and medium temperature flue gas components and the waste heat, so as to achieve net zero waste gas discharging, energy saving and emission reduction.

IPC Classes  ?

• F27B 7/36 - Arrangements of air or gas supply devices
• F27D 15/02 - Cooling
• F27D 17/00 - Arrangements for using waste heatArrangements for using, or disposing of, waste gases
• F27B 7/20 - Details, accessories or equipment specially adapted for rotary-drum furnaces

Abstract

A cracking process for a reaction distillation of chlorosilane slurry includes feeding a chlorosilane slurry into a phase separator, drying a solid phase, feeding a chlorosilane polymer into a plate distillation column, returning kettle materials of the plate distillation column, and dividing a material produced from a top of the column. The process adopts an ionic liquid catalyst, which is environmentally friendly and reusable. The cracking and distillation of chlorosilane polymer are carried out simultaneously to shorten the time and increase the utilization rate of raw materials, which can reduce energy consumption and save costs and facilitate industrial production. A plate column is used as a distillation column, in which the two phases of the gas and liquid are sufficiently contacted. Therefore, the transfer of mass and heat is good, the production capacity is good, and the tower is not easily blocked, thereby making it easy to clean.

IPC Classes  ?

• C01B 33/107 - Halogenated silanes
• B01D 3/00 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
• B01D 3/14 - Fractional distillation

Abstract

The present application belongs to the field of life health, and discloses a sugar chain and a composition thereof, and use in the prevention and/or treatment of coronavirus infection. The sugar chain contains any one or more of Neu5Acα2-N1Gal building blocks, and/or any one or more of xFuc-N1Gal-N1(xFuc-N1)GlcNAc building blocks, at the non-reducing end, where, x=0 or 1, and N1=1, 2, 3, 4 or 6. A glycosidic bond formed between Neu5Ac and Gal is an α2 glycosidic bond. In the xFuc-N1Gal-N1(xFuc-N1)GlcNAc building blocks, a glycosidic bond formed between any two adjacent monosaccharides is an α1 or β1 glycosidic bond. The specific building block contained at the non-reducing end of the sugar chain blocks the binding of the virus to the host, thereby blocking virus invasion and infection of the respiratory tract/lung, and achieving the specific prevention and treatment.

IPC Classes  ?

• C07H 13/04 - Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids by carboxylic acids having the esterifying carboxyl radicals attached to acyclic carbon atoms
• C08B 37/00 - Preparation of polysaccharides not provided for in groups Derivatives thereof
• A61P 31/14 - Antivirals for RNA viruses

Abstract

The disclosure provides a device and method for extracting a clean liquid from a slurry reactor in an environment-friendly and energy-saving manner. The method mainly includes the following steps: S1. siphoning slurry in the slurry reactor into a material collecting pipe, and then spraying the slurry into a settling tank, so that solid particles settle in the settling tank and return to the slurry reactor through a discharging pipe; S2. making supernatant in the settling tank flow upward along a settling pipe, and then flow downward at a pipe intersection into a clear liquid pipe and flow into a clear liquid transition tank; S3. discharging liquid from the clear liquid transition tank in an overflow manner to keep the constant liquid level and a pressure required for siphoning; and S4. introducing gas in the material collecting pipe into an escape pipe and continuously discharging the gas to ensure that the liquid level in the escape pipe is always higher than the pipe intersection so as to ensure that the slurry reactor and the clear liquid transition tank are always communicated and the liquid levels are the same. The device according to the disclosure is simple in structure, and the process is simple, safe and reliable, and is not prone to failure. It is easy to implement large-scale continuous operation and adjust separation efficiency and precision. The device requires low equipment investment and is low in operation cost and environmentally friendly.

IPC Classes  ?

• B01D 21/02 - Settling tanks
• B01D 19/00 - Degasification of liquids
• B01J 8/22 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles with liquid as a fluidising medium gas being introduced into the liquid

Abstract

Disclosed in the invention are a lithium-rich manganese-based positive electrode material, a preparation method therefor and an application thereof. The lithium-rich manganese-based positive electrode material comprises a lithium-rich manganese-based positive electrode material core and a shell coated on the surface of the core. The shell comprises a first coating and a second coating. The first coating comprises a composite oxide of Al, Zr, Ce and La and an n-type thermoelectric material. The second coating comprises a composite carbon material, a hydrogen-containing lithium titanium oxide compound and molybdenum disulfide. The lithium-rich manganese-based positive electrode material of the present application has excellent specific discharge capacity, rate capability and cycle stability, and has broad application prospects.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
• H01M 4/04 - Processes of manufacture in general

Abstract

A method for extracting palladium includes: (1) mixing a palladium-containing material with nitric acid and an alkali metal ion-containing catalyst to obtain a mixed solution, heating the mixed solution, and removing a resulting residue to obtain a palladium-containing leaching liquor; and (2) subjecting the palladium-containing leaching liquor obtained in step (1) to separative extraction to obtain metallic palladium or at least one palladium-containing product, and reusing a residual solution for step (1) in a subsequent extraction. The alkali metal ion-containing catalyst of the present disclosure can leach palladium at a higher rate than that when pure nitric acid of the same concentration is used and does not volatilize, such that the recycling of a mother liquor can be realized. The method involves simple operations, has low production costs, greatly shortens the palladium extraction time, does not lead to secondary pollution, and meets the requirements of environmental protection.

IPC Classes  ?

• C25C 1/20 - Electrolytic production, recovery or refining of metals by electrolysis of solutions of noble metals
• C25C 7/06 - Operating or servicing

Abstract

The present disclosure relates to an immunologically active peptide-biliverdin conjugate (I), a preparation method therefor and an application thereof in cancer diagnosis, and/or tumor immunotherapy, and/or tumor “photothermal immunotherapy” (tumor photothermal therapy combined with immunotherapy). The conjugate to which the present disclosure relates not only may stimulate an organism to generate a tumor-immune effect, but also may relieve and/or eliminate tumor inflammation, remodel a tumor inflammatory microenvironment and achieve photothermal cancer immunodiagnosis and immunotherapy. The conjugate to which the present disclosure relates has high biocompatibility, good stability and an extended half-life. The conjugate is prepared from an immunologically active peptide and biliverdin by means of chemical synthesis. A peptide end of the conjugate exercises the function of immunoregulation, and a pigment end thereof exercises functions such as tumor imaging diagnosis, tumor photo-thermal ablation, immune inflammatory microenvironment regulation and the like. The conjugate may significantly enhance the antitumor effect and effectively inhibit tumor metastasis and recurrence.

IPC Classes  ?

• A61K 41/00 - Medicinal preparations obtained by treating materials with wave energy or particle radiation
• A61K 47/51 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
• A61K 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
• C07K 14/77 - Ovalbumin
• C07K 14/025 - Papovaviridae, e.g. papillomavirus, polyomavirus, SV40, BK virus, JC virus

Abstract

Disclosed herein is a method for preparing sodium carbonate and co-producing ammonium sulfate and ammonium chloride from a mixed waste salt. The separation of a mixed salt of sodium sulfate and sodium chloride is combined with the high-value use thereof; sodium carbonate is prepared from the mixed waste salt by mainly using two double decomposition reactions, and ammonium sulfate and ammonium chloride are co-produced. The purity of sodium carbonate meets the requirement for lightweight sodium carbonate in class-II qualified products in GB/T 210.1-2004; the purity of ammonium sulfate meets the requirement for type-I products in GB/T 535-2020; and the purity of ammonium chloride meets the requirement for agricultural ammonium chloride first-grade products in GB/T 2946-2018. In addition, the method has a simple process and a low cost, and the utilization rate of sodium is greater than 90%.

IPC Classes  ?

• C01C 1/24 - Sulfates of ammonium
• C01C 1/16 - Halides of ammonium
• C01D 7/00 - Carbonates of sodium, potassium, or alkali metals in general
• C01D 5/00 - Sulfates or sulfites of sodium, potassium, or alkali metals in general

Abstract

Disclosed are a cyclopeptide glass and a pharmaceutical composition glass containing a cyclopeptide. The cyclopeptide glass of the present invention can simultaneously exert efficacy and a drug adjuvant function. Compared with crystals and traditional drug dosage forms or adjuvants, the cyclopeptide glass can effectively increase the drug dissolution rate and improve drug bioavailability, and can be widely used in the fields of drug delivery and sustained release for anti-tumor, anti-viral/anti-bacterial, blood sugar control, immune regulation, neuromodulation, etc.

IPC Classes  ?

• C07K 5/12 - Cyclic peptides
• C07K 7/66 - Gramicidins S, CTyrocidins A, B, CRelated peptides
• C07K 7/62 - PolymyxinsRelated peptides
• C07K 7/58 - BacitracinsRelated peptides
• C07K 11/00 - Depsipeptides having up to 20 amino acids in a fully defined sequenceDerivatives thereof
• C07K 7/60 - Cyclic peptides containing at least one abnormal peptide link with at least one abnormal peptide link in the ring the cyclisation occurring through the 4-amino group of 2,4-diamino-butanoic acid
• C07K 7/56 - Cyclic peptides containing at least one abnormal peptide link with at least one abnormal peptide link in the ring the cyclisation not occurring through 2,4-diamino-butanoic acid
• C07K 9/00 - Peptides having up to 20 amino acids, containing saccharide radicals and having a fully defined sequenceDerivatives thereof
• C07K 7/64 - Cyclic peptides containing only normal peptide links
• C07K 7/06 - Linear peptides containing only normal peptide links having 5 to 11 amino acids
• C07K 5/103 - Tetrapeptides the side chain of the first amino acid being acyclic, e.g. Gly, Ala
• C07K 14/605 - Glucagons
• A61K 9/00 - Medicinal preparations characterised by special physical form
• A61K 38/05 - Dipeptides
• A61K 38/12 - Cyclic peptides
• A61K 38/14 - Peptides containing saccharide radicalsDerivatives thereof
• A61K 47/18 - AminesAmidesUreasQuaternary ammonium compoundsAmino acidsOligopeptides having up to five amino acids
• A61K 47/42 - ProteinsPolypeptidesDegradation products thereofDerivatives thereof, e.g. albumin, gelatin or zein
• A61P 3/10 - Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
• A61P 31/04 - Antibacterial agents
• A61P 31/12 - Antivirals
• A61P 35/00 - Antineoplastic agents
• A61P 37/02 - Immunomodulators
• C07D 498/18 - Bridged systems
• C07D 498/22 - Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains four or more hetero rings
• A61K 31/439 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom the ring forming part of a bridged ring system, e.g. quinuclidine

Abstract

Provided is a method for preparing hydrogen-rich fuel gas by overheating catalytic conversion of a waste organic-inorganic composite material, relating to an organic-inorganic composite material. The method mainly comprises the following steps: low-temperature vacuum cracking, superheated steam pyrolysis, fuel gas catalytic recombination, fuel gas purification, mechanical crushing-eddy current separation and the like. Compared with the prior art, due to the use of a low-temperature vacuum cracking and superheated steam pyrolysis combined technology, the gasification conversion rate of organic components is increased, and enrichment of cracked oil and cracked coke is avoided. Gas produced by pyrolysis is catalytically reformed, so that the content of combustible hydrogen in fuel gas is increased, and the obtained hydrogen-rich fuel gas has a higher utilization value. The method has the characteristics of strong raw material adaptability, high organic component conversion rate, obvious reduction, easy industrial popularization and application and the like.

IPC Classes  ?

• C10L 3/00 - Gaseous fuelsNatural gasSynthetic natural gas obtained by processes not covered by subclasses , Liquefied petroleum gas
• C10L 3/08 - Production of synthetic natural gas

Abstract

The present application relates to a lithium ion battery positive electrode material, and a preparation method therefor and the use thereof. The preparation method comprises the following steps: (1) preparing a mixed solution from a raw material containing metal ions, a polymer and a solvent, independently leaving same and an ammonium source to stand in the same space, and subjecting same to solid-liquid separation to obtain a precursor; and (2) mixing and calcining the precursor in step (1) and a lithium source to obtain a lithium ion battery positive electrode material.

IPC Classes  ?

• H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

Disclosed in the present invention are biodegradable glass based on an amino acid, a peptide and a derivative, and a preparation method therefor and an application thereof. A main raw material of the glass is one of or a combination of a plurality of an amino acid, a peptide, and a derivative or salt thereof. Compared with conventional glass, the glass of the present invention has significant advantages such as high biocompatibility, biodegradability, 3D printing, and composting; the glass has a simple and green preparation process, which can effectively avoid the influence of the conventional glass on the ecological environment; and the glass is widely applied to fields such as medicines, building materials, chemical engineering, foods, electronics, and national defense, including but not limited to tissue engineering, tooth/bone repair, sustained drug release, cell/protein sequestration, fiber optic communications, coatings, precise instruments, etc.

IPC Classes  ?

• C03C 4/00 - Compositions for glass with special properties
• C07C 233/47 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom having the carbon atom of the carboxamide group bound to a hydrogen atom or to a carbon atom of an acyclic saturated carbon skeleton
• C07C 271/22 - Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of hydrocarbon radicals substituted by carboxyl groups
• A61K 47/18 - AminesAmidesUreasQuaternary ammonium compoundsAmino acidsOligopeptides having up to five amino acids
• A61K 47/42 - ProteinsPolypeptidesDegradation products thereofDerivatives thereof, e.g. albumin, gelatin or zein
• C07K 1/00 - General processes for the preparation of peptides

Abstract

The present invention discloses an external loop slurry reactor, comprising a gas-liquid integrated distributor, a riser, a degassing zone, a solid-liquid separation circulation unit, and a storage tank. When the reactor works, reactants are injected into the riser through the gas-liquid integrated distributor; the slurry mixes and flows upwards to the degassing zone at the top for gas removal, and a large number of bubbles are removed. The slurry with catalyst particles then enters a downcomer and flows downwards. The slurry flows into a first-stage hydrocyclone and a multi-stage hydrocyclone in sequence for solid-liquid separation. The diameter of the first-stage hydrocyclone is larger than that of the multi-stage hydrocyclone. The separated solid particles flow back into the riser to continue to participate in the reaction.

IPC Classes  ?

• B01J 8/22 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles with liquid as a fluidising medium gas being introduced into the liquid
• B01J 8/00 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes
• B01J 8/18 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles
• B01J 19/24 - Stationary reactors without moving elements inside

Abstract

Disclosed are a polycarbonate and a preparation method therefor and an application thereof. The polycarbonate comprises at least one of structural units selected from a structural unit represented by formula (I) and a structural unit represented by formula (II). The polycarbonate provided by the present application has a high refractive index, and the obtained polycarbonate has a refractive index of 1.673-1.794, which can satisfy performance requirements of polycarbonate as an optical resin in optical components.

IPC Classes  ?

• C08G 64/30 - General preparatory processes using carbonates
• C08G 64/16 - Aliphatic-aromatic or araliphatic polycarbonates
• G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics

Abstract

x and dioxin in the flue gas, an ammonia-spraying device is externally connected between the flue gas exhaust unit and the primary waste heat utilization unit, and the ammonia-spraying device is configured for injecting ammonia gas into the flue gas exhausted from the flue gas exhaust unit.

IPC Classes  ?

• B01D 53/34 - Chemical or biological purification of waste gases
• B01D 53/70 - Organic halogen compounds
• B01D 53/86 - Catalytic processes
• B01D 53/90 - Injecting reactants
• F27D 17/00 - Arrangements for using waste heatArrangements for using, or disposing of, waste gases

Abstract

The present application relates to a polyimide random copolymer having a structure as represented by formula (I). The present application also relates to a method for preparing the polyimide random copolymer, a film prepared from the polyimide random copolymer, and a method for preparing a polyimide-based hollow fiber membrane. The present application further relates to a system for purifying helium and a method for purifying helium.

IPC Classes  ?

• C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
• B01D 71/64 - PolyimidesPolyamide-imidesPolyester-imidesPolyamide acids or similar polyimide precursors
• B01D 69/08 - Hollow fibre membranes
• B01D 63/02 - Hollow fibre modules

Abstract

The present application provides a gas premixing sealing cover capable of double-side intake and a circulating system for flue gas of a sintering machine. The gas premixing sealing cover capable of double-side intake comprises a sealing cover body, two symmetrically-arranged circulating flue gas inlet pipes are connected into a same section of the periphery of the sealing cover body, a gas inlet pipe extends into the sealing cover body, a branch pipe and two gas distribution rings are provided in the sealing cover body, the gas inlet pipe and the branch pipe are distributed in a T shape, the two gas distribution rings are symmetrically connected to the two ends of the branch pipe, and each gas distribution ring corresponds to one circulating flue gas inlet pipe.

IPC Classes  ?

• F27D 17/00 - Arrangements for using waste heatArrangements for using, or disposing of, waste gases

Abstract

The present application provides a composite positive electrode material and a preparation method therefor, and a lithium ion battery. The positive electrode material comprises a core and a cladding layer cladded on the surface of the core, the core comprises a lithium-rich positive electrode material, and the cladding layer comprises an n-type thermoelectric material. The method comprises: compounding the lithium-rich positive electrode material with the n-type thermoelectric material to obtain the composite positive electrode material. The compounding method comprises: method I, mixing the lithium-rich positive electrode material with the n-type thermoelectric material for treatment to obtain the composite positive electrode material; or method II, dispersing and treating raw materials of the lithium-rich positive electrode material and the n-type thermoelectric material to obtain the composite positive electrode material.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy

Abstract

Disclosed is an external circulating slurry reactive crystallizer, including a riser, a degassing zone and a downcomer. A lower end of the riser is communicated with a gas inlet pipe, a liquid inlet pipe and a solid feeding pipe, while an upper end of the riser is communicated with a lower end of the degassing zone. An upper end of the downcomer is integrally fixed to a sidewall of the degassing zone. At least one hydrocyclone is arranged at a lower end of the downcomer. The hydrocyclone is provided with an overflow port at an upper end thereof and an underflow port and a valve at a lower end thereof. The overflow port is communicated with the riser. The crystallizer can simultaneously realize reaction, crystallization and separation for continuous production with low cost, regulating and controlling the particle size distribution and morphology of crystals.

IPC Classes  ?

• B01D 9/00 - Crystallisation
• B01D 19/00 - Degasification of liquids
• B01D 21/26 - Separation of sediment aided by centrifugal force
• B01J 4/00 - Feed devicesFeed or outlet control devices
• B01J 10/00 - Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particlesApparatus specially adapted therefor

Abstract

The present invention relates to the technical field of functional materials, and in particular to an amorphous metal oxide hollow multi-shell material and a preparation method therefor and an application thereof. The method comprises the following steps: 1) performing a heating reaction on a carbon source aqueous solution, filtering, washing, and drying to obtain a carbon sphere template; 2) dispersing the carbon sphere template obtained in step 1) in a first metal salt solution, heating, adsorbing, and drying to obtain a first solid precursor; 3) dispersing the solid precursor obtained in step 2) in a second metal salt solution again, adsorbing, and drying to obtain a second solid precursor; and 4) roasting the second solid precursor obtained in step 3) to obtain the amorphous metal oxide hollow multi-shell material. According to the present invention, a defect-controllable doping energy level is introduced into a metal oxide hollow sphere by means of a two-step enhanced adsorption method, so that efficient absorption of wave bands in a solar spectrum is achieved.

IPC Classes  ?

• C01G 35/00 - Compounds of tantalum

Abstract

Disclosed is a preparation method for preparing diphenylmethane diisocyanate. The preparation method comprises: under a catalyst condition, performing a pyrolysis reaction on diphenylmethane dicarbamate in an inert solvent having a boiling point lower than that of diphenylmethane diisocyanate to obtain diphenylmethane diisocyanate.

IPC Classes  ?

• C07C 263/04 - Preparation of derivatives of isocyanic acid from or via carbamates or carbamoyl halides
• C07C 265/14 - Derivatives of isocyanic acid containing at least two isocyanate groups bound to the same carbon skeleton
• C07C 265/12 - Derivatives of isocyanic acid having isocyanate groups bound to carbon atoms of six-membered aromatic rings
• B01J 23/72 - Copper

Abstract

Disclosed are a composite absorbent and a method for using same in the absorption and conversion of ethylene oxide for the coupling co-production of ethylene carbonate. The composite absorbent comprises an ionic liquid and ethylene carbonate, wherein the ionic liquid is an imidazole ionic liquid, a quaternary ammonium ionic liquid and a quaternary phosphonium ionic liquid. The composite absorbent is used for absorbing ethylene oxide and carbon dioxide, and is also used in the absorption and conversion of ethylene oxide for the coupling co-production of ethylene carbonate.

IPC Classes  ?

• C07D 317/38 - Ethylene carbonate
• C07D 301/32 - SeparationPurification
• B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption

Abstract

Disclosed are a hydrolysis reaction device and a hydrolysis method for organic sulfur in blast furnace gas. The device comprises a housing, the housing is internally provided with a catalyst partition plate group in an axial direction, the top surface of the catalyst partition plate group is tightly attached to the top surface of the housing, and an air inlet chamber is formed between the bottom surface of the catalyst partition plate group and the bottom surface of the housing; the partition plate group comprises an inner ring partition plate and an outer ring partition plate which are coaxially provided in a nested manner, a formed annular cavity is filled with a hydrolysis catalyst, and the partition plate group is fixedly provided with an annular bottom plate which seals the bottom of the cavity; and the inner ring partition plate encloses an exhaust passage, an air inlet passage is formed between the outer ring partition plate and the side wall of the housing, and the bottom of the housing is provided with an air inlet.

IPC Classes  ?

• C10K 1/34 - Purifying combustible gases containing carbon monoxide by catalytic conversion of impurities to more readily removable materials

Abstract

The present application provides a method for preparing a probiotic-loaded microcapsule including: (1) dissolving sodium alginate in a solvent to obtain a sodium alginate solution; (2) evenly mixing a probiotic with the sodium alginate solution obtained in step (1) to obtain a probiotic suspension; and (3) spraying the probiotic suspension obtained in step (2) into a salt solution, stirring and curing, to obtain the probiotic-loaded microcapsule. The microcapsule is prepared by a spraying method in conjunction with an ion curing method by using sodium alginate as the wall material of the microcapsule, so that the prepared microcapsule has a good spherical shape, a small particle size, good dispersibility and high pH sensitivity, forms a denser surface under an acidic condition to effectively protect probiotics, and can meet requirements for subsequent in vivo animal evaluations.

IPC Classes  ?

• A61K 9/50 - Microcapsules
• A23L 29/256 - Foods or foodstuffs containing additivesPreparation or treatment thereof containing gelling or thickening agents of vegetable origin from seaweeds, e.g. alginates, agar or carrageenan
• A23L 33/135 - Bacteria or derivatives thereof, e.g. probiotics
• A23P 10/30 - Encapsulation of particles, e.g. foodstuff additives
• A61K 35/747 - Lactobacilli, e.g. L. acidophilus or L. brevis
• A61K 35/745 - Bifidobacteria

Abstract

x and waste liquid are caused by the extraction process, and the invention is clean and environmentally friendly.

IPC Classes  ?

• H01M 10/38 - Construction or manufacture
• C25C 1/20 - Electrolytic production, recovery or refining of metals by electrolysis of solutions of noble metals
• C22B 3/04 - Extraction of metal compounds from ores or concentrates by wet processes by leaching
• C22B 3/06 - Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions
• C25C 7/02 - ElectrodesConnections thereof
• C25C 7/04 - DiaphragmsSpacing elements

Abstract

1Gal1Gal-N1111Gal-N111)GlcNAc structural unit, the glycosidic bond formed between any two adjacent monosaccharides is an α1 or β1 glycosidic bond; using the specific structural units contained in the non-reducing end of the sugar chain, the binding of the virus to the receptor of the host is blocked, thereby blocking an invasive infection of the respiratory tract/lungs by the virus, achieving the purpose of specialized prevention/treatment.

IPC Classes  ?

• A61K 31/715 - Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkagesDerivatives thereof, e.g. ethers, esters
• A61K 31/702 - Oligosaccharides, i.e. having three to five saccharide radicals attached to each other by glycosidic linkages
• A61P 31/14 - Antivirals for RNA viruses

Abstract

Disclosed herein is a method for preparing 1,5-pentane diisocyanate, comprising the following steps: (1) mixing 1,5-pentanediamine, a carbonylation agent, a first solvent and a catalyst for a carbonylation reaction, performing solid-liquid separation, and obtaining a 1,5-pentamethylene dicarbamate reaction solution; and (2) purifying the 1,5-pentamethylene dicarbamate reaction solution, then mixing same with a second solvent for a pyrolysis reaction, and obtaining 1,5-pentane diisocyanate.

IPC Classes  ?

• C07C 265/14 - Derivatives of isocyanic acid containing at least two isocyanate groups bound to the same carbon skeleton
• C07C 263/04 - Preparation of derivatives of isocyanic acid from or via carbamates or carbamoyl halides
• C07C 271/20 - Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of hydrocarbon radicals substituted by nitrogen atoms not being part of nitro or nitroso groups
• C07C 269/04 - Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups the nitrogen atom not being part of nitro or nitroso groups from amines with formation of carbamate groups

Abstract

An apparatus and method for extracting clean liquid from a slurry reactor (3-1) in an environment-friendly and energy-saving mode. The method comprises the following steps: S1, slurry in the slurry reactor (3-1) is siphoned into a material collecting pipe (4) and then sprayed into a settling tank (6), and solid particles settle in the settling tank (6) and return to the slurry reactor (3-1) by means of a discharging pipe (5); S2, a supernatant in the settling tank (6) flows upwards along a settling pipe (16), flows downwards into a clear liquid pipe (8) at an intersection of pipes and flows into a clear liquid transition tank (9); S3, the clear liquid transition tank (9) drains liquid in an overflow mode, such that the constant liquid level and the pressure required by siphoning are maintained; and S4, gas in the material collecting pipe (4) enters a gas escape pipe (11) and is continuously exhausted, such that the liquid level in the gas escape pipe (11) is always higher than the intersection of pipes to ensure that the slurry reactor (3-1) is always communicated with the clear liquid transition tank (9), and the liquid level is kept identical. The apparatus is simple in structure, simple in technological process, safe and reliable, not prone to failure, easy to achieve large-scale continuous operation, easy to adjust separation efficiency and precision, small in device investment, low in operation cost, and environmentally friendly.

IPC Classes  ?

• B01J 8/22 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles with liquid as a fluidising medium gas being introduced into the liquid
• B01D 21/02 - Settling tanks
• B01D 19/00 - Degasification of liquids

Abstract

222 in the gas to form the absorption liquid after absorption, wherein the absorption liquid before absorption contains the cyclohexyl diamine ionic liquid and water; (2) heating and/or decompressing the absorption liquid after absorption for desorption and regeneration of the absorption liquid; and (3) applying the absorption liquid which is regenerated in step (2) to step (1), and cycling back to step (2) and step (1) to realize cyclic utilization of the absorption liquid.

IPC Classes  ?

• C07C 211/17 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms of a saturated carbon skeleton containing rings other than six-membered aromatic rings containing only non-condensed rings
• B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption

Abstract

Disclosed are a hydrogenation catalyst, a preparation method therefor and use thereof. The hydrogenation catalyst includes a carrier and an active component supported on the carrier, wherein the carrier is nitrogen-doped carbon, and the active component is a bimetal selected from Ru-Fe, Ru-Co, Ru-Ni or Ru-Cu.

IPC Classes  ?

• B01J 27/24 - Nitrogen compounds
• B01J 35/10 - Solids characterised by their surface properties or porosity
• C07C 209/36 - Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings
• C07C 211/46 - Aniline
• C07C 211/51 - Phenylenediamines

Abstract

Provided is a lysine decarboxylase for synthesizing pentylenediamine and an application thereof, comprising the gene and protein sequences of the lysine decarboxylase, constructed expression vectors and genetic engineering bacterial strains, and an application in the synthesis of bio-based pentylenediamine. By constructing an expression vector and genetic engineering bacterial strain, lysine decarboxylase is induced to be expressed, and pentylenediamine is produced by whole cell catalytic synthesis. The described lysine decarboxylase can achieve 100% conversion of high-concentration lysine hydrochloride, and the production intensity of pentanediamine can reach 204 g/L/h.

IPC Classes  ?

• C07K 14/195 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from bacteria
• C12N 9/88 - Lyases (4.)
• C12N 15/60 - Lyases (4)
• C12N 15/70 - Vectors or expression systems specially adapted for E. coli
• C12N 1/21 - BacteriaCulture media therefor modified by introduction of foreign genetic material
• C12P 13/00 - Preparation of nitrogen-containing organic compounds

Abstract

A metal-based monolithic catalyst and a preparation method therefor, the preparation method comprising: atomising a precursor solution and then passing same through a flame field, and depositing a coating layer on a metal substrate by means of thermophoresis to obtain the metal-based monolithic catalyst.

IPC Classes  ?

• B01J 23/50 - Silver
• B01J 23/72 - Copper
• B01J 23/75 - Cobalt

Abstract

The present disclosure relates to an immunologically active peptide-biliverdin conjugate (I), a preparation method therefor and an application thereof in cancer diagnosis, and/or tumor immunotherapy, and/or tumor "photothermal immunotherapy" (tumor photothermal therapy combined with immunotherapy). The conjugate to which the present disclosure relates not only may stimulate an organism to generate a tumor-immune effect, but also may relieve and/or eliminate tumor inflammation, remodel a tumor inflammatory microenvironment and achieve photothermal cancer immunodiagnosis and immunotherapy. The conjugate to which the present disclosure relates has high biocompatibility, good stability and an extended half-life. The conjugate is prepared from an immunologically active peptide and biliverdin by means of chemical synthesis. A peptide end of the conjugate exercises the function of immunoregulation, and a pigment end thereof exercises functions such as tumor imaging diagnosis, tumor photo-thermal ablation, immune inflammatory microenvironment regulation and the like. The conjugate may significantly enhance the anti-tumor effect and effectively inhibit tumor metastasis and recurrence.

IPC Classes  ?

• A61K 41/00 - Medicinal preparations obtained by treating materials with wave energy or particle radiation
• A61K 31/409 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil having four such rings, e.g. porphine derivatives, bilirubin, biliverdine
• A61K 38/00 - Medicinal preparations containing peptides
• A61P 35/00 - Antineoplastic agents

Abstract

Disclosed herein are a composite positive electrode material, a preparation method therefor, and an application in a zinc ion battery. The composite positive electrode material comprises: a sulfur-doped three-dimensional network structure conductive polymer/graphene/carbon nanotube composite carbon material, and vanadium tetrasulfide nanoparticles that are loaded on the surface of the composite carbon material; said surface comprises at least one among the outer surface of conductive polymer particles, the sheet-layer surface and interlayer of graphene, and the outer surface of carbon nanotubes.

IPC Classes  ?

• H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates

Abstract

A system and a process for co-producing dimethyl carbonate and ethylene glycol. The system comprises an interconnected ethylene carbonate preparation unit and an ethylene carbonate alcoholysis unit. The ethylene carbonate preparation unit comprises a fixed bed reactor and a light-component stripping column connected to each other. The fixed bed reactor is filled with a supported ionic liquid catalyst. The process comprises the steps of: reacting carbon dioxide and ethylene oxide as raw materials in the fixed bed reactor to produce ethylene carbonate, purifying the ethylene carbonate and then mixing it with an alcoholysis reaction catalyst, and reacting the mixture with methanol in a reactive distillation tower, producing dimethyl carbonate and ethylene glycol. The process increases the conversion rate of ethylene oxide and avoids the need for a process of separating conventional homogeneous catalysts from ethylene carbonate, thereby reducing process energy consumption and simplifying process procedures.

IPC Classes  ?

• B01J 8/00 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes
• B01J 8/02 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds
• C07C 29/00 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
• C07C 29/128 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by alcoholysis
• C07C 68/00 - Preparation of esters of carbonic or haloformic acids
• C07C 68/06 - Preparation of esters of carbonic or haloformic acids from organic carbonates
• C07C 68/065 - Preparation of esters of carbonic or haloformic acids from organic carbonates from alkylene carbonates

Abstract

Provided is an exosome, which is secreted by a hybrid cell formed by antigen-presenting cells phagocytosing the cell nuclei of tumor cells. Using the strategy of macrophages phagocytosing the cell nuclei of tumor cells achieves endogenous expression of tumor antigens on macrophages, and the exosome prepared has good capabilities of targeting to lymph nodes and tumors dually.

IPC Classes  ?

• C12N 5/00 - Undifferentiated human, animal or plant cells, e.g. cell linesTissuesCultivation or maintenance thereofCulture media therefor
• A61K 35/15 - Cells of the myeloid line, e.g. granulocytes, basophils, eosinophils, neutrophils, leucocytes, monocytes, macrophages or mast cellsMyeloid precursor cellsAntigen-presenting cells, e.g. dendritic cells
• A61K 35/17 - LymphocytesB-cellsT-cellsNatural killer cellsInterferon-activated or cytokine-activated lymphocytes
• A61K 39/00 - Medicinal preparations containing antigens or antibodies
• A61P 35/00 - Antineoplastic agents
• C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
• C12N 5/0786 - MonocytesMacrophages
• C12N 5/16 - Animal cells

Abstract

A vaccine comprising antigen and a matrix of biodegradable polymer blend, wherein the polymer blend comprises hydrophobic polymer and amphiphilic block copolymer, and the vaccine exists in form of microcapsules that comprise a multi-cavity structure inside, and has an average particle diameter of preferably 10-100 μm and more preferably 30-60 μm, and is prepared by means of the following method: making porous microspheres from the polymer blend, then mixing the porous microspheres with antigen-containing solution, and then sealing openings of porous microspheres that have been loaded with the antigen-containing solution to form an opening-sealed microcapsule loaded with the antigen.

IPC Classes  ?

• A61K 39/29 - Hepatitis virus
• A61K 39/00 - Medicinal preparations containing antigens or antibodies
• A61K 39/39 - Medicinal preparations containing antigens or antibodies characterised by the immunostimulating additives, e.g. chemical adjuvants
• A61K 9/50 - Microcapsules
• A61P 35/00 - Antineoplastic agents

Abstract

An external-loop slurry bed reaction crystallizer, comprising a riser (1), a degassing zone, and a downcomer. The lower end of the riser (1) is communicated with a gas inlet pipe (11), a liquid inlet pipe (12), and a solid feed pipe (13). The upper end of the riser (1) is communicated with the lower end of the degassing zone, and the top of the degassing zone is open. The upper end of the downcomer and a sidewall of the degassing zone are fixed as an integral whole, and the downcomer is communicated with the interior of the degassing zone. The lower end of the downcomer is provided with at least one hydrocyclone (4), and the downcomer is communicated with the hydrocyclone (4). The upper end of the hydrocyclone (4) is provided with an overflow port, and the lower end is provided with a bottom flow port (42) and a valve (43). The valve (43) is used for controlling the flow of the bottom flow port (42). The overflow port is communicated with the riser (1), so that a crystallization mother liquor containing small particle crystallization products can enter the riser (1) through the overflow port.

IPC Classes  ?

• B01D 9/02 - Crystallisation from solutions

Abstract

Provided are a semi-dry desulfurization and defluorination system and method for aluminum electrolysis flue gas. The system comprises a slaked lime feeding unit, an aluminum electrolysis flue gas conveying unit and a desulfurization and defluorination unit, wherein the slaked lime feeding unit comprises a grinding device (1), the desulfurization and defluorination unit comprises a circulating fluidized bed, and the aluminum electrolysis flue gas conveying unit comprises an aluminum electrolysis flue gas conveying pipeline and a steam conveying pipeline; the grinding device (1) is connected to a slaked lime feeding inlet of the circulating fluidized bed; and the aluminum electrolysis flue gas conveying pipeline and the steam conveying pipeline are connected to a gas inlet of the circulating fluidized bed.

IPC Classes  ?

• B01D 53/50 - Sulfur oxides
• B01D 53/68 - Halogens or halogen compounds
• B01D 53/83 - Solid phase processes with moving reactants

Abstract

x molar ratio.

IPC Classes  ?

• B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
• B01D 53/18 - Absorbing unitsLiquid distributors therefor
• B01D 53/75 - Multi-step processes
• B01D 53/80 - Semi-solid phase processes, i.e. by using slurries
• B01D 53/86 - Catalytic processes
• B01D 53/90 - Injecting reactants

Abstract

Disclosed is a battery pre-processing apparatus and method. The battery pre-processing apparatus includes a control mechanism, as well as an automatic feeding mechanism, a transmission mechanism, an electricity monitoring actuator, a non-destructive testing mechanism, a flexible grabber mechanism, a multi-station operating table, an automatic cutting mechanism, an automatic separation mechanism, and a recovery and dust collection system that are each electrically connected to the control mechanism.

IPC Classes  ?

• H01M 10/54 - Reclaiming serviceable parts of waste accumulators
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof

Abstract

xxx and dioxin in the flue gas, an ammonia-spraying device is externally connected between the flue gas exhaust unit and the primary waste heat utilization unit, and the ammonia-spraying device is configured for injecting ammonia gas into the flue gas exhausted from the flue gas exhaust unit.

IPC Classes  ?

• F27D 17/00 - Arrangements for using waste heatArrangements for using, or disposing of, waste gases

Abstract

Disclosed herein are a dual metal MOFs catalyst, and a preparation method therefor and a use thereof. The catalyst comprises nickel ions, manganese ions and organic carboxylic acid ligands. The catalyst has a relatively large specific surface area and porosity, and the nickel ions and the manganese ions are highly dispersed in the catalyst to provide more active sites for the catalyst; in addition, the nickel ions and the manganese ions coordinate with each other which can improve the stability and water resistance of the catalyst. The catalyst of the present application has a relatively high catalytic activity at a relatively low temperature; within a temperature range of 200-250°C, the catalyst has a conversion rate of up to 94% for catalyzing the conversion of nitrogen oxide; and the preparation process for the catalyst is simple. Thus, the catalyst has wide application prospects.

IPC Classes  ?

• B01J 31/22 - Organic complexes
• B01J 35/10 - Solids characterised by their surface properties or porosity
• B01D 53/56 - Nitrogen oxides
• B01D 53/86 - Catalytic processes
• B01J 37/10 - Heat treatment in the presence of water, e.g. steam

Abstract

A method for preparing a probiotic-carrying microcapsule, a product prepared therefrom, and an application thereof. The method comprises the steps of: (1) dissolving sodium alginate in a solvent to obtain a sodium alginate solution; (2) evenly mixing a probiotic with the sodium alginate solution obtained in step (1) to obtain a probiotic suspension; and (3) spraying a salt solution into the probiotic suspension obtained in step (2), and stirring and solidifying the suspension, to obtain the probiotic-carrying microcapsule. The microcapsule is used for preparing healthcare foods, beverages and foods, clinical nutritional preparations, pharmaceutical capsule preparations, or cosmetics.

IPC Classes  ?

• A23L 33/135 - Bacteria or derivatives thereof, e.g. probiotics
• A23L 33/16 - Inorganic salts, minerals or trace elements
• A23L 29/256 - Foods or foodstuffs containing additivesPreparation or treatment thereof containing gelling or thickening agents of vegetable origin from seaweeds, e.g. alginates, agar or carrageenan
• A23L 2/52 - Adding ingredients
• A23P 10/30 - Encapsulation of particles, e.g. foodstuff additives
• A61K 9/50 - Microcapsules
• A61K 47/36 - PolysaccharidesDerivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
• A61K 35/741 - Probiotics
• A61K 8/11 - Encapsulated compositions
• A61P 1/00 - Drugs for disorders of the alimentary tract or the digestive system

Abstract

Disclosed is a method for extracting lithium by means of extraction-back extraction separation and purification, the method comprising the following steps: (1) extracting and separating a lithium-containing solution using an extraction system containing a composite extractant at a pH of 10-13 to obtain a lithium-loaded organic phase; (2) subjecting the lithium-loaded organic phase obtained in step (1) to gas-liquid-liquid three-phase back extraction to obtain a lithium-loaded back-extraction solution; and (3) subjecting the back-extraction solution obtained in step (2) to a heat treatment and separation to obtain a lithium product and a mother solution resulting from separation. The method achieves efficient separation of lithium from impurity elements such as Na, K and B by using the composite extractant, and by means of the gas-liquid-liquid three-phase continuous back extraction, the back extraction rate of lithium is then 90% or more, the total yield is 83% or more, and the purity of the obtained lithium product is 96% or more; furthermore, the method has a large processing capacity, a simple process and apparatus, and a low amount of investment, effectively utilizes industrial tail gases, is energy-saving and environmentally friendly, and can be continuously produced.

IPC Classes  ?

• C22B 3/28 - Amines
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C22B 26/12 - Obtaining lithium

Abstract

The present application relates to an oxygen-enriched sintering flue gas circulation system and an application thereof. The oxygen-enriched sintering flue gas circulation system comprises a sintering machine, a first dust remover, a first fan, an oxygen addition system, a second dust remover, a second fan, and a post-processing unit. The oxygen addition system uniformly mixes oxygen with a circulating flue gas, ensuring the stability of the sintering yield and quality. A detection unit detects the oxygen content in the circulating flue gas in real time to adjust the oxygen addition amount by means of a control unit, and detects the oxygen content in the mixed flue gas in real time to feed back and adjust a flow adjustment device by means of the control unit, enabling the oxygen content of the circulating flue gas to be 18% to 30%.

IPC Classes  ?

• F27D 17/00 - Arrangements for using waste heatArrangements for using, or disposing of, waste gases
• F27D 19/00 - Arrangement of controlling devices

Abstract

xx is achieved, the denitration efficiency of flue gas is improved, the amount of ozone used is reduced, and operating costs are reduced.

IPC Classes  ?

• B01D 53/76 - Gas phase processes, e.g. by using aerosols
• B01D 53/56 - Nitrogen oxides
• B01D 53/50 - Sulfur oxides
• B01D 50/00 - Combinations of methods or devices for separating particles from gases or vapours
• F27D 17/00 - Arrangements for using waste heatArrangements for using, or disposing of, waste gases

Abstract

An outer circulation slurry bed reactor, comprising a gas-liquid integrated distributor (1), a riser (2), a degassing area (3), a solid-liquid separation and circulation assembly (4) and a storage tank (5). During operation, reactants enter the riser (2) through the gas-liquid integrated distributor (1), a slurry mixture moves upward to the degassing area (3) at the top for degassing, a large amount of bubbles are removed, the slurry entrained with catalyst particles enters into a downcomer (6) and flows downward, the slurry enters a one-stage hydraulic swirler (7) and a multi-stage hydraulic swirler (8) sequentially for solid-liquid separation, the one-stage hydraulic swirler (7) has a diameter larger than that of the multi-stage hydraulic swirler (8), and the separated solid particles flow back to the riser (2) to continue to participate in the reaction.

IPC Classes  ?

• B01J 8/22 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles with liquid as a fluidising medium gas being introduced into the liquid

Abstract

Provided is an SCR denitration system for cement kiln flue gas. The system is arranged between a waste heat boiler and a raw mill of a cement production device, and comprises a pre-dedusting device, a reducing agent injection device, and an SCR reactor that are sequentially connected, wherein the waste heat boiler is connected to the pre-dedusting device, the raw mill is connected to the SCR reactor, the reducing agent injection device is connected to a reducing agent preparation system, and the SCR reactor is connected to an air soot-blowing system.

IPC Classes  ?

• F27D 17/00 - Arrangements for using waste heatArrangements for using, or disposing of, waste gases
• B01D 53/56 - Nitrogen oxides
• B01D 53/75 - Multi-step processes

Abstract

Disclosed are an apparatus and a method for increasing a solid content in a reaction crystallizer. The apparatus comprises a discharging tube, a supernatant tube, a supernatant barrel and a gas collecting tube. The upper end of the discharging tube, the upper end of the supernatant tube and the lower end of the gas collecting tube are respectively connected to each other. The lower end of the discharging tube is submerged below the liquid surface in the crystallizer, the lower end of the supernatant tube is submerged below the liquid surface in the supernatant barrel, and the gas collecting tube collects gas that enters the discharging tube and the supernatant tube. A liquid level must be maintained above the junction of the discharging tube and the supernatant tube to ensure that the crystallizer and the supernatant barrel are always in liquid communication with each other, the liquid in the cyrstallizer being level with liquid in the supernatant barrel, and the supernatant barrel maintaining the liquid level therein by overflowing. When the crystallizer is added to, the liquid-solid mixture in the crystallizer automatically enters the discharging tube and slowly flows upward therein, during which the solid particles gradually sink and settle back into the crystallizer, while the supernatant continues to flow upward before entering the supernatant tube, and flows into the supernatant barrel, where it is discharged by overflowing. The method has the advantages of requiring a low investment and being easy to operate, and can effectively increase a solid content in the reaction crystallizer and control crystal morphology and particle size distribution.

IPC Classes  ?

• B01D 9/02 - Crystallisation from solutions
• B01D 21/02 - Settling tanks

Abstract

Disclosed are a composite absorbent and a method for using same in the absorption and conversion of ethylene oxide for the coupling co-production of ethylene carbonate. The composite absorbent comprises an ionic liquid and ethylene carbonate, wherein the ionic liquid is an imidazole ionic liquid, a quaternary ammonium ionic liquid and a quaternary phosphonium ionic liquid. The composite absorbent is used for absorbing ethylene oxide and carbon dioxide, and is also used in the absorption and conversion of ethylene oxide for the coupling co-production of ethylene carbonate.

IPC Classes  ?

• B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
• C07D 301/32 - SeparationPurification
• C07D 303/04 - Compounds containing oxirane rings containing only hydrogen and carbon atoms in addition to the ring oxygen atoms
• C07D 317/38 - Ethylene carbonate

Abstract

Disclosed is a preparation method for preparing diphenylmethane diisocyanate. The preparation method comprises: under a catalyst condition, performing a pyrolysis reaction on diphenylmethane dicarbamate in an inert solvent having a boiling point lower than that of diphenylmethane diisocyanate to obtain diphenylmethane diisocyanate.

IPC Classes  ?

• C07C 263/04 - Preparation of derivatives of isocyanic acid from or via carbamates or carbamoyl halides
• C07C 265/14 - Derivatives of isocyanic acid containing at least two isocyanate groups bound to the same carbon skeleton
• C07C 265/12 - Derivatives of isocyanic acid having isocyanate groups bound to carbon atoms of six-membered aromatic rings
• B01J 23/00 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group
• B01J 23/06 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of zinc, cadmium or mercury
• B01J 23/70 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper

Abstract

Disclosed are an organic-inorganic composite solid electrolyte, a preparation method therefor and the use thereof. The electrolyte comprises the following components: an inorganic solid electrolyte, a polymer, a lithium salt and a silane coupling agent. The organic-inorganic composite solid electrolyte provided by the present application has the advantages of a high conductivity, a low activation energy and a large migration number of lithium ions, can effectively inhibit the growth of lithium dendrites, and exhibits the characteristics of a high capacity and a long lifetime in a lithium metal battery.

IPC Classes  ?

• H01M 10/056 - Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
• H01M 10/058 - Construction or manufacture
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries