Abstract

Disclosed in the present invention is a high-temperature-resistant industrial gear oil composition in the technical field of lubricating oil and lubricating oil additives. The high-temperature-resistant industrial gear oil composition comprises the following components in percentages by weight: 95.0-98.0 wt% of mixed base oil (A) containing alkyl naphthalene base oil, wherein the alkyl naphthalene base oil accounts for 5.0-25.0 wt%; 0.8-2.0 wt% of an anti-wear agent (B); 0.15-0.35 wt% of a metal passivator (C); 0.5-2.5 wt% of an amine antioxidant (D); 0.05-0.2 wt% of an antirust agent (E); and 0.01-0.02 wt% of an anti-foaming agent (F). By means of the synergistic effect of the alkyl naphthalene base oil and the amine antioxidant, the composition of the present invention has relatively good antioxidant properties under high-temperature conditions. In addition, the industrial gear oil composition of the present invention has the characteristics of prominent high-temperature wear resistance and corrosion resistance and also has excellent anti-rust performance, anti-foaming performance and anti-emulsifying performance, and is suitable for industrial gear and bearing lubricating parts under severe conditions of high temperature, high pressure, heavy load, etc.

IPC Classes  ?

• C10M 169/04 - Mixtures of base-materials and additives
• C10N 40/04 - Oil-bathGear-boxesAutomatic transmissionsTraction drives
• C10N 30/06 - OilinessFilm-strengthAnti-wearResistance to extreme pressure
• C10N 30/14 - Metal deactivation
• C10N 30/12 - Inhibition of corrosion, e.g. anti-rust agents, anti-corrosives
• C10N 30/10 - Inhibition of oxidation, e.g. anti-oxidants
• C10N 30/18 - Anti-foaming property
• C10N 30/08 - Resistance to extreme temperature
• C10N 30/00 - Specified physical or chemical property which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives

Abstract

A method for identifying a cell population passage number. The method comprises: judging the probability of a cell population to be identified being in each of N known passage numbers on the basis of a preset passage number identification model; comparing a characteristic quantity of the cell population to be identified with characteristic quantities of cell populations of N known passage numbers to obtain a passage number range within which the cell population to be identified falls; and obtaining a passage number for the cell population to be identified according to the passage number range within which the cell population to be identified falls and the probability of the cell population to be identified being in each passage number. Further disclosed is a marker set for identifying a cell population passage number.

IPC Classes  ?

• G16B 40/20 - Supervised data analysis

Abstract

A high voltage generator is provided. The high voltage generator includes an inverter bridge including a first bridge leg and a second bridge leg, a first resonant branch coupled in series to the first bridge leg, a transformer coupled in series between the first resonant branch and the second bridge leg, a second resonant branch coupled in series with the transformer, and a rectifier circuit coupled with the transformer for providing an output voltage to an X-ray source.

IPC Classes  ?

• H05G 1/12 - Power supply arrangements for feeding the X-ray tube with DC or rectified single-phase AC
• H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
• H02M 3/00 - Conversion of DC power input into DC power output
• H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 3/337 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration

Abstract

The present invention provides a reconfigurable intelligent surface-based method and system for downlink communication under cooperation of multiple satellites. The method comprises the following steps: providing multiple satellites to serve ground nodes at the same time, so as to construct direct links between the satellites and the ground nodes; deploying a reconfigurable intelligent surface, and constructing auxiliary links between the satellites and the reconfigurable intelligent surface; and implementing downlink communication from the multiple satellites to the ground nodes on the basis of the cooperation of the direct links and the auxiliary links. According to the reconfigurable intelligent surface-based method and system for downlink communication under cooperation of multiple satellites of the present invention, a reconfigurable intelligent surface is used as a relay to implement downlink communication under the cooperation of multiple satellites, thereby effectively improving the transmission performance of the system.

IPC Classes  ?

• H04B 7/155 - Ground-based stations

Abstract

The present application provides an unmanned aerial vehicle network deployment and cooperative caching method, system and terminal. The method comprises the following steps: acquiring a user cluster satisfying a user quality of service (QoS) and position information of an unmanned aerial vehicle; and determining a total content transmission time delay between the user cluster and the unmanned aerial vehicle and a base station on the basis of the user cluster and the position information of the unmanned aerial vehicle, and minimizing the total content transmission time delay to optimize cooperative caching of the unmanned aerial vehicle and the base station. By means of the unmanned aerial vehicle network deployment and cooperative caching method, system and terminal in the present application, joint control of the three-dimensional position and cache placement of an unmanned aerial vehicle is realized, thereby reducing the average content transmission delay; a user clustering method satisfying an actual user QoS requirement is provided, thereby improving the resource utilization rate; the position deployment of the unmanned aerial vehicle is optimized, and thus a better channel condition can be provided for a user; and the cache deployment of the unmanned aerial vehicle is optimized, such that resources occupied for wireless backhaul link transmission of the unmanned aerial vehicle is reduced, thereby improving the traffic of an auxiliary wireless network of the unmanned aerial vehicle.

IPC Classes  ?

• H04W 72/0446 - Resources in time domain, e.g. slots or frames
• H04W 16/18 - Network planning tools

Abstract

A novel photodiode structure, a preparation method and a circuit structure are provided. The novel photodiode structure includes a substrate having a first doping type, a functional doping area having a second doping type, a surface doping area having the first doping type, and an auxiliary doping area having the second doping type. By forming a non-uniformly doped functional doping area, the present disclosure forms a self-built potential difference in the functional doping area and drives the moving direction of the photogenerated carriers. The photogenerated carriers may be accelerated by the potential difference, so that the collected carriers will directly enter the subsequent circuit through the transport gate. In addition, the loop shape of the auxiliary doping area can increase the area of receiving charges, in a result, the auxiliary doping area can receive the transported carriers faster, thereby further enhancing the transport efficiency of the photogenerated carriers.

IPC Classes  ?

• H01L 31/0352 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

Abstract

Provided in the present invention are a joint beamforming method and system for a heterogeneous intelligent reflecting surface system, a medium and a terminal. The method comprises the following steps: acquiring the number of users participating in federated training and the number of reflection units contained in each intelligent reflecting surface; on the basis of the number of the users and the number of the reflection units, initializing a global federated model; in each training cycle, providing each user with the global federated model, so as to enable each user to update a local federated model by means of using the global federated model, and to train the local federated model by means of using a local data set, and aggregating the local federated models of all the users, so as to obtain an aggregated global federated model; and on the basis of the aggregated global federated model, predicting joint beamforming of a heterogeneous intelligent reflecting surface system. The joint beamforming method and system for a heterogeneous intelligent reflecting surface system, the medium and the terminal of the present invention solve, on the basis of an SFL algorithm, the problem of active and passive beamforming jointing for a heterogeneous IRS assisted downlink system, and effectively reduce the calculation complexity and the training cost.

IPC Classes  ?

• H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station

Abstract

The present disclosure provides a method for maintaining stable combustion of a gas turbine during a dynamic process, a computer-readable medium, and a gas turbine control system. The method comprises: compensating a fuel control valve stroke command δf,CLC with a fuel flow compensation function Gf,COMP(s); and compensating a VIGV command θVIGV,CLC with an air flow compensation function Gair,COMP(s), wherein the fuel flow compensation function Gf,COMP(s) and the air flow compensation function Gair,COMP(s) satisfy the following relation: Gf,COMP(s)·Gf(s)=Gair,COMP(s)·Gair(s), and an fuel-to-air ratio is directly proportional to δf,CLC/θVIGV,CLC even during the dynamic process, where Gf(s) represents an overall transfer function of a fuel channel from a fuel control valve servo system to an inlet of a combustion chamber, and Gair(s) represents an overall transfer function of an air channel from a VIGV servo system to the inlet of the combustion chamber.

IPC Classes  ?

• F02C 9/28 - Regulating systems responsive to plant or ambient parameters, e.g. temperature, pressure, rotor speed

Abstract

The present invention provides an efficient nucleic acid testing and gene sequencing method. The method includes the steps of: S1: constructing a space and spectral calibration matrix A to serve as a prior information; S2: labeling a target nucleic acid sequence with fluorescent probes to prepare a nucleic acid chip having a spatial distribution, and exciting the nucleic acid chip with a light source to emit multicolor fluorescent signals, and sequentially modulating, encoding and collecting the multicolor fluorescent signals, and thus obtaining a fluorescence two-dimensional intensity measurement matrix Y; and S3: performing correlation calculation between the calibration matrix A and the measurement matrix Y through a correlation imaging algorithm, solving Y=AX, and reconstructing a target signal X, that is, the fluorescence molecular spatial, spectral and intensity distribution information of the labeled target nucleic acid sequence, thereby realizing efficient nucleic acid testing and gene sequencing.

IPC Classes  ?

• C12Q 1/6869 - Methods for sequencing
• G01N 21/64 - FluorescencePhosphorescence
• C12Q 1/6837 - Enzymatic or biochemical coupling of nucleic acids to a solid phase using probe arrays or probe chips
• G06F 17/16 - Matrix or vector computation

Abstract

The present invention provides an all-light-field imaging camera, comprising an imaging assembly and a two-dimensional array detector which are sequentially arranged to form an image plane intensity information acquisition system, the imaging assembly, a Fourier transform lens, and a two-dimensional array detector which are sequentially arranged to form a spatial Fourier spectrum intensity information acquisition system, and an operation processor in communicational connection with the detectors. The imaging assembly receives illumination light from an object to be detected and forms imaging light, the imaging light implements imaging on a detection surface of the detector to form a first image plane, the imaging light implements imaging in front of the Fourier transform lens to form a second image plane, and a spatial Fourier spectrum intensity information plane is formed on a detection surface of the detector on a focal plane behind the Fourier transform lens. The present invention also provides a corresponding imaging method and an all-light field imaging device. The all-light-field imaging camera of the present invention overcomes the difficulties that in existing phase imaging technologies, the requirement for the sampling rate is high, redundant information needs to be obtained by overlapping, algorithm convergence is slow, etc.

IPC Classes  ?

• H04N 23/957 - Light-field or plenoptic cameras or camera modules

Abstract

The present invention provides a novel photodiode structure, a preparation method, and a circuit structure. The novel photodiode structure comprises: a first doping type substrate, a second doping type functional doping region, a first doping type surface doping region, and a second doping type auxiliary doping region. The present invention, by forming a non-uniformly doped functional doping region and forming a self-built potential difference in the functional doping region, can drive the direction of motion of photogenerated carriers, such as accelerating movement of photogenerated carriers under the action of the potential difference, so that collected carriers directly enter a subsequent circuit by passing through a transport gate (TG). In addition, an auxiliary doping region of an annular structure can increase the area for receiving charge, receive transported carriers faster, and further improve the transport efficiency of photogenerated carriers.

IPC Classes  ?

• H01L 31/0352 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
• H01L 31/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof - Details
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

Abstract

Electrode freeze-coating equipment and a method for manufacturing an electrode by freeze-coating. The freeze-coating equipment comprises electrode coating equipment (1) and a freezing device (2) provided on the electrode coating equipment (1). According to the freeze-coating equipment, a directional freeze crystallization in a temperature gradient is performed on an electrode slurry in an electrode coating process or after the coating process is completed, and finally a directional porous electrode is obtained after drying; the advantages of simplicity and high efficiency are achieved, and the purpose of manufacturing directional porous electrodes is achieved.

IPC Classes  ?

• H01M 4/04 - Processes of manufacture in general
• H01M 4/08 - Processes of manufacture
• B05C 11/04 - Apparatus for spreading or distributing liquids or other fluent materials already applied to a surfaceControl of the thickness of a coating with blades

Abstract

f,CLCf,COMPVIGV,CLCair,COMPf,COMPair,COMPf,COMPfair,COMPairf,CLCVIGV,CLCfairair(s) represents a total transfer function from a VIGV servo system to an air channel at the inlet of the combustion chamber.

IPC Classes  ?

• F02C 9/00 - Controlling gas-turbine plantsControlling fuel supply in air-breathing jet-propulsion plants
• F02C 9/50 - Control of fuel supply conjointly with another control of the plant with control of working fluid flow
• F23R 3/00 - Continuous combustion chambers using liquid or gaseous fuel
• F23R 3/28 - Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
• F23R 3/02 - Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration

Abstract

5+ reach up to 80%, and aromatics reach up to 65%.

IPC Classes  ?

• B01J 37/03 - PrecipitationCo-precipitation
• B01J 29/46 - Iron group metals or copper
• B01J 19/14 - Production of inert gas mixturesUse of inert gases in general
• B01J 20/30 - Processes for preparing, regenerating or reactivating
• B01J 21/06 - Silicon, titanium, zirconium or hafniumOxides or hydroxides thereof
• B01J 23/06 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of zinc, cadmium or mercury
• B01J 23/08 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of gallium, indium or thallium
• B01J 23/10 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of rare earths
• B01J 23/26 - Chromium
• B01J 23/745 - Iron
• B01J 29/08 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the faujasite type, e.g. type X or Y
• B01J 29/40 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
• B01J 29/70 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups
• B01J 29/76 - Iron group metals or copper
• B01J 29/85 - Silicoaluminophosphates [SAPO compounds]
• B01J 35/02 - Solids
• B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts
• B01J 37/04 - Mixing
• B01J 37/06 - Washing
• B01J 37/08 - Heat treatment
• B01J 37/18 - Reducing with gases containing free hydrogen
• C10G 2/00 - Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon

Abstract

Provided are an efficient nucleic acid testing and gene sequencing method and apparatus. The method comprises the steps of: S1, constructing a space and spectrum calibration matrix A to serve as a priori information; S2, marking a target nucleic acid sequence by using a fluorescent probe, preparing a nucleic acid chip having a spatial distribution, a light source exciting the nucleic acid chip to emit multicolor fluorescence signals, and sequentially modulating, encoding and collecting the multicolor fluorescence signals by using an imaging module and a plane array detector, so as to obtain a two-dimensional fluorescence intensity measurement matrix Y; and S3, carrying out association calculation on the calibration matrix A and the measurement matrix Y by means of an association reconstruction algorithm, solving Y = AX, and reconstructing a target signal X, i.e. marking space, spectrum and intensity distribution information of fluorescent molecules of the nucleic acid sequence, thereby realizing efficient nucleic acid testing and gene sequencing. By changing a traditional optical testing method, the present invention provides a nucleic acid testing and gene sequencing method and apparatus.

IPC Classes  ?

• C12Q 1/6869 - Methods for sequencing
• C12Q 1/6837 - Enzymatic or biochemical coupling of nucleic acids to a solid phase using probe arrays or probe chips
• C12M 1/34 - Measuring or testing with condition measuring or sensing means, e.g. colony counters
• C12M 1/00 - Apparatus for enzymology or microbiology
• G01N 21/64 - FluorescencePhosphorescence
• G16B 40/00 - ICT specially adapted for biostatisticsICT specially adapted for bioinformatics-related machine learning or data mining, e.g. knowledge discovery or pattern finding
• G16B 20/30 - Detection of binding sites or motifs
• G06F 17/16 - Matrix or vector computation

Abstract

A high voltage generator is provided. The high voltage generator includes an inverter circuit coupled to receive a direct-current (DC) input voltage, a resonant circuit coupled to the inverter circuit, a transformer coupled to the resonant circuit and also coupled to provide a high voltage output to a high voltage device, and a phase control circuit coupled to receive a voltage across and a current through the resonant circuit and also coupled to the inverter circuit. The phase control circuit generates control signals to drive the inverter circuit. The control signals drive the inverter circuit to keep the resonant circuit operating in an inductive region.

IPC Classes  ?

• H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
• H05G 1/12 - Power supply arrangements for feeding the X-ray tube with DC or rectified single-phase AC
• H02M 3/337 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration
• H02M 3/00 - Conversion of DC power input into DC power output
• H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 1/00 - Details of apparatus for conversion
• H02M 1/34 - Snubber circuits

Abstract

A sealing disc for vacuum closure suitable for using in reciprocating movement to an open position or a closed position to open or seal a valve port of an all-metal valve is disclosed. A sealing plate of the sealing disc is formed with a first sealing surface. When the sealing disc is in the closed position, the first sealing surface directly abuts against the valve port of the all-metal vacuum valve. A vacuum sealability can be improved and a service lifetime can be prolonged through compensating movement and adjusting movement between two metallic sealing surfaces abutting each other.

IPC Classes  ?

• F16K 1/36 - Valve members
• F16K 51/02 - Other details not peculiar to particular types of valves or cut-off apparatus specially adapted for high-vacuum installations
• F16K 1/42 - Valve seats

Abstract

A cobalt carbide-based catalyst for direct production of olefin from synthesis gas, a preparation method therefor and application thereof are disclosed. The method for preparing the catalyst comprises the following steps: 1) mixing a cobalt source with water, or mixing a cobalt source, an electron promoter and water to obtain a first solution; and mixing a precipitant with water to obtain a second solution; 2) adding the first solution and the second solution to water, or water and a structure promoter for precipitation, crystallizing, separating, drying and calcination; and 3) reducing a solid obtained in Step 2) in a reducing atmosphere, and then carbonizing in a carbonizing atmosphere. The prepared catalyst has high activity and high selectivity to olefins for direct production of olefins via syngas conversion.

IPC Classes  ?

• B01J 27/22 - Carbides
• C01B 32/914 - Carbides of single elements
• 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 37/08 - Heat treatment
• B01J 37/18 - Reducing with gases containing free hydrogen
• C07C 1/04 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of carbon from carbon monoxide with hydrogen

Abstract

Provided are a method and device for biomass pyrolysis and low temperature tar removal based on a microwave hotspot, the method including the following steps: 1) under anaerobic conditions, pyrolyzing a first biomass to obtain a solid biochar bed; 2) under anaerobic conditions, subjecting the biochar bed layer obtained in step 1) to microwave heating to form a microwave hot spot region; and 3) under anaerobic conditions, adding a second biomass to form a biomass pyrolysis bed layer above the biochar bed layer, pyrolyzing same, and then in situ removing tar from the biochar bed layer across the microwave hot spot region. In the present invention, microwaves are is used as a heating means, and a high ash biochar generated by pyrolysis is used as a catalyst for tar removal and as a carrier for microwave hot spot generation to form a high temperature microwave hotspot region having both a microwave field and a catalytic performance on the surface of the biochar. After biomass pyrolysis tar generation, immediate in situ removal in the microwave hotspot region is realized, the overall reaction temperature is lowered, and the reaction time is shortened.

IPC Classes  ?

• C10B 53/02 - Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
• C10B 57/00 - Other carbonising or coking processesFeatures of destructive distillation processes in general

Abstract

A high voltage generator is provided. The high voltage generator includes an inverter circuit coupled to receive a direct-current (DC) input voltage, a resonant circuit coupled to the inverter circuit, a transformer coupled to the resonant circuit and also coupled to provide a high voltage output to a high voltage device, and a phase control circuit coupled to receive a voltage across and a current through the resonant circuit and also coupled to the inverter circuit. The phase control circuit generates control signals to drive the inverter circuit. The control signals drive the inverter circuit to keep the resonant circuit operating in an inductive region.

IPC Classes  ?

• H05G 1/12 - Power supply arrangements for feeding the X-ray tube with DC or rectified single-phase AC
• H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
• H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 3/337 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration
• H02M 1/00 - Details of apparatus for conversion
• H02M 1/34 - Snubber circuits

Abstract

A high voltage generator is provided. The high voltage generator includes an inverter circuit coupled to receive a direct-current (DC) input voltage, a resonant circuit coupled to the inverter circuit, a transformer coupled to the resonant circuit and also coupled to provide a high voltage output to a high voltage device, and a phase control circuit coupled to receive a voltage across and a current through the resonant circuit and also coupled to the inverter circuit. The phase control circuit generates control signals to drive the inverter circuit. The control signals drive the inverter circuit to keep the resonant circuit operating in an inductive region.

IPC Classes  ?

• H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

A method for measuring thermal conductivity of a thin film based on fluorescent micro-nano-particles, comprising: providing fluorescent micro-nano-particles, heating the fluorescent micro-nano-particles, and determining a temperature coefficient by measuring the relationship between PL spectrum (photoluminescence spectra) characteristic peak displacement of the fluorescent micro-nano-particles and temperature change (S1); placing a thin film to be detected on a substrate, and placing a heat-absorbing resource and the fluorescent micro-nano-particles on the surface of the thin film to be detected (S2); irradiating the thin film to be detected with laser, and determining a relationship slope by measuring the relationship between the PL spectrum characteristic peak displacement of the fluorescent micro-nano-particles and the laser power change (S3); and measuring the thermal conductivity of the thin film by combining an optical power absorption coefficient of the heat-absorbing resource and shape characteristic parameters of the thin film to be detected (S4). The measuring method can realize nondestructive, convenient and reliable measurement of the thermal conductivity of the micro-nano-thin film.

IPC Classes  ?

• G01N 25/20 - Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity

Abstract

Disclosed are a catalyst for preparing hydrocarbons from carbon dioxide by one-step hydrogenation and a method for preparing same. The catalyst comprises nano-metal oxides and zeolite molecular sieves with hierarchical pores, wherein the mass fraction of the nano-metal oxides in the catalyst is 10%-90%, and the mass fraction of the molecular sieves with hierarchical pores in the catalyst is 10%-90%. The catalyst has an excellent catalytic performance, a good reaction stability and a high selectivity for target products, and in the hydrocarbon products, C2=-C4= accounts for up to 80%, C5+ accounts for 80%, and aromatic hydrocarbons account for up to 65%.

IPC Classes  ?

• B01J 29/08 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the faujasite type, e.g. type X or Y
• B01J 29/40 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
• B01J 29/46 - Iron group metals or copper
• B01J 29/70 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups
• B01J 29/72 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups containing iron group metals, noble metals or copper
• B01J 29/85 - Silicoaluminophosphates [SAPO compounds]
• C10G 2/00 - Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon

Abstract

A cobalt carbide-based catalyst for direct preparation of olefin from syngas, as well as a preparation method therefor and an application thereof. The method for preparing the catalyst comprises the following steps: mixing a cobalt source with water or a cobalt source, an electron additive and water to obtain a first solution; mixing a precipitant with water to obtain a second solution; 2) adding the first solution and the second solution to water, or water and a structural additive, for precipitation, crystallization, separation, drying and calcination; and 3) reducing a solid obtained in step 2) in a reducing atmosphere, and then carbonizing in a carbonizing atmosphere. The prepared catalyst has good selectivity and high conversion rate in the reaction of olefin preparation by direct conversion of syngas.

IPC Classes  ?

• B01J 27/22 - Carbides
• C07C 1/04 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of carbon from carbon monoxide with hydrogen
• C07C 11/02 - Alkenes
• C07C 11/06 - Propene
• B01J 23/75 - Cobalt

Abstract

The present invention provides a self-cleaning reflection reduction film and a method of preparing the same. The preparation method comprises: using an imprint technology and a surface modification technology to process the transparent flexible film and produce a micrometer-scale three-dimensional patterned structure, to provide the transparent flexible film with reflection reduction performance and self-cleaning performance, and integrating the self-cleaning reflection reduction film and a window layer of a solar cell component, so that reflection on the surface of the window layer can be effectively inhibited, and a quantity of photons that enter an absorption layer of a cell can be increased, thereby improving photoelectric conversion efficiency of the cell, where the improvement in cell efficiency is particularly notable when sunlight enters at a slanted angle. The antireflective and self-cleaning film of the present invention may be chosen to be an ultra-hydrophobic film or an ultra-hydrophilic film. The ultra-hydrophobic film has a relatively high water contact angle. When the ultra-hydrophobic film is slanted, water drops easily fall off and take away pollutants on the surface, thereby implementing a self-cleaning effect. The ultra-hydrophilic film is combined with a catalytic effect of light, so that organic contaminants on the surface may be degraded, thereby also achieving a self-cleaning effect.

IPC Classes  ?

• H01L 31/0232 - Optical elements or arrangements associated with the device
• H01L 31/0236 - Special surface textures
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• B82Y 40/00 - Manufacture or treatment of nanostructures

Abstract

The invention discloses a method for the pervaporation and vapor-permeation separation of a gas-liquid mixture/liquid mixture by an ion-exchanged SAPO-34 molecular sieve membrane, said method comprises the following steps: 1) synthesis of SAPO-34 molecular sieve seeds; 2) coating the SAPO-34 molecular sieve seeds onto the inner surface of a porous support; 3) synthesis of SAPO-34 molecular sieve membrane; 4) performing ion exchange and calcination; 5) using the ion-exchanged SAPO-34 molecular sieve membrane obtained in step 4) to perform the separation of a gas-liquid mixture or a liquid mixture by a process of pervaporation separation or vapor-permeation separation. The present method for membrane separation of methanol-dimethyl carbonate has advantages like low energy consumption, being not limited by azeotropic mixture, high methanol flux and high separation factors and thus has great economic value.

IPC Classes  ?

• B01D 53/22 - 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 diffusion
• B01D 61/36 - PervaporationMembrane distillationLiquid permeation
• B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
• B01D 69/04 - Tubular membranes
• B01D 69/10 - Supported membranesMembrane supports
• B01D 71/02 - Inorganic material

Abstract

The invention discloses a method for the pervaporation and vapor-permeation separation of a gas-liquid mixture or a liquid mixture by a SAPO-34 molecular sieve membrane prepared in a dry gel process, comprising: 1) synthesis of SAPO-34 molecular sieve seeds; 2) coating the SAPO-34 seeds on a porous support; 3) preparation of a mother liquor for dry gel synthesis of SAPO-34 molecular sieve membrane; 4) supporting the mother liquor for dry gel synthesis on the porous support coated with SAPO molecular sieve seeds and drying; 5) placing the porous support prepared in step 4) into a reaction vessel, adding a solvent, performing crystallization of the dry gel; 6) calcining; 7) using the SAPO-34 molecular sieve membrane obtained from step 6) to perform separation of a gas-liquid mixture or a liquid mixture by a process of pervaporation separation or vapor-permeation separation. The invention has the advantages of very high methanol selectivity and permeation flux, lowering synthesis cost of molecular sieve membrane and lowering environment pollution.

IPC Classes  ?

• B01D 53/22 - 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 diffusion
• B01D 61/36 - PervaporationMembrane distillationLiquid permeation
• B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
• B01D 69/04 - Tubular membranes
• B01D 69/10 - Supported membranesMembrane supports
• B01D 71/02 - Inorganic material

Abstract

The present invention discloses a method for the pervaporation and vapor-permeation separation of a gas-liquid mixture or a liquid mixture by a SAPO-34 molecular sieve membrane, which comprises: 1) mixing an Al source, tetraethyl ammonium hydroxide, water, a Si source and a P source, and subjecting the resultant to hydrothermal crystallization, then centrifuging, washing and drying to get SAPO-34 molecular sieve seeds; 2) coating the SAPO-34 molecular sieve seeds onto the inner surface of a porous support tube; 3) synthesis of a SAPO-34 molecular sieve membrane tube; 4) calcining the obtained SAPO-34 molecular sieve membrane tube to obtain a SAPO-34 molecular sieve membrane; 5) using the SAPO-34 molecular sieve membrane obtained from step 4) to perform separation of a gas-liquid mixture or a liquid mixture via a process of pervaporation separation or vapor- permeation separation. The invention has the advantages of very high methanol selectivity and permeation flux, and provides an efficient and energy-saving separation way via pervaporation or vapor-permeation separation.

IPC Classes  ?

• B01D 53/22 - 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 diffusion
• B01D 61/36 - PervaporationMembrane distillationLiquid permeation
• B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
• B01D 69/04 - Tubular membranes
• B01D 69/10 - Supported membranesMembrane supports
• B01D 71/02 - Inorganic material

Abstract

Provided is a preparation method of a crystalline silicon film. The method includes: 1) forming a mask for making a periodic silicon rod array on a monocrystalline silicon wafer substrate, and forming the periodic silicon rod array on the monocrystalline silicon substrate by a wet chemical etching or dry etching process; 2) forming barrier layers both on the surface of the monocrystalline silicon substrate and the surface of the silicon rod array for next selectively epitaxial growth of silicon; 3) exposing silicon cores on the heads of the rod array by a selective etching process to form a protruded silicon seeds out of the mother wafer substrate; 4) growing a continuous silicon film at the top of the rod array by a selective epitaxial chemical vapor deposition method using the exposed silicon cores as protruded seeds while leaving voids between the film and the mother wafer substrate; and 5) lifting off the silicon film and transferring the silicon film to a preset substrate, and the seeded substrate is reusable.

IPC Classes  ?

• H01L 21/44 - Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups
• H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
• H01L 21/306 - Chemical or electrical treatment, e.g. electrolytic etching
• H01L 21/3065 - Plasma etchingReactive-ion etching
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

Abstract

Provided are a pixel unit readout circuit and a method therefor, and a pixel array readout circuit and a method therefor. Both of the pixel unit and pixel array readout circuits at least comprise: a voltage provision unit, a current comparison unit and a counting unit, wherein an output end of the pixel unit and an output end of the voltage provision unit are respectively connected to the two input ends of the current comparison unit, and an output end of the current comparison unit is connected to the enable end of the counting unit. The pixel unit and pixel array readout circuits provided in the present invention have the characteristics of a low power consumption and simple structure, the traditional ADC modules in the pixel unit and pixel array readout circuits, which use readout signals of semi-floating-gate transistors and so on as current signals, are omitted, and the complexity and the circuit area of the readout circuits are reduced, thereby reducing the design costs and manufacturing costs of image sensor chips.

IPC Classes  ?

• H04N 5/378 - Readout circuits, e.g. correlated double sampling [CDS] circuits, output amplifiers or A/D converters
• H04N 5/374 - Addressed sensors, e.g. MOS or CMOS sensors
• H01L 27/146 - Imager structures

Abstract

A remover for a metal in an organic liquid source Low-K material and a preparation method and the use thereof. The remover for a metal is magnetic composite hydrated titanium dioxide with a core material of Fe3O4 or γ-Fe2O3 magnetic particles having a particle size of 10 nm-30 μm, wherein the surface of the magnetic particles are covered with the hydrated titanium dioxide, the magnetic particles are connected to the hydrated titanium dioxide by covalent bonds, and the mass content of the hydrated titanium dioxide in the magnetic composite hydrated titanium dioxide is 30%-70%.

IPC Classes  ?

• B01J 20/06 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group
• C07F 7/20 - PurificationSeparation

Abstract

Provided is a method for preparing vinyl chloride with acetylene and dichlorethane for large-scale industrial production. Acetylene, dichlorethane vapor and hydrogen chloride gas at a molar ratio of 1:(0.3-1.0):(0-0.20) are mixed; the raw mixed gas is preheated; the preheated raw mixed gas passes through a reactor containing a catalyst and reacts; the resultant mixed gas is cooled to 30-50° C. and pressurized to 0.4-1.0 MPa, and then cooled to ambient temperature, and further frozen to −25-15° C. for liquefaction isolation, and unliquefied gas is recycled and reused; liquefied liquid is sent to a rectifying tower for rectification, and vinyl chloride monomers meeting polymerization requirements are obtained. The present invention has the advantages of eliminating mercury contamination completely, simplifying the reactor structure, recycling hydrogen chloride and acetylene, reducing waterwash process, avoiding mass production of waste acid and improving utilization of chlorine.

IPC Classes  ?

• C07C 17/07 - Preparation of halogenated hydrocarbons by addition of hydrogen halides
• C07C 17/08 - Preparation of halogenated hydrocarbons by addition of hydrogen halides to unsaturated hydrocarbons
• C07C 17/25 - Preparation of halogenated hydrocarbons by splitting-off hydrogen halides from halogenated hydrocarbons
• C07C 17/354 - Preparation of halogenated hydrocarbons by reactions not affecting the number of carbon or halogen atoms in the molecules by hydrogenation

Abstract

A preparation method for a crystalline silicon thin film based on layer transfer, comprising: 1) forming a mask used for manufacturing a periodic rod array on the surface of a monocrystalline silicon substrate (101), and forming a periodic silicon rod array (103) on the monocrystalline silicon substrate by using a chemical wet etching or dry etching process; 2) forming a barrier layer (104) on the surface of the monocrystalline silicon substrate and the surface of the silicon rod array; 3) exposing the silicon at the top of the silicon rod array by using a selective etching process, and forming a silicon nuclear array; 4) by taking the silicon nuclear array as an epitaxially grown crystallon or a nucleation position, forming a continuous silicon film (106) at the top of the silicon rod array by using a chemical vapour deposition method; and 5) stripping the silicon film, and transferring same to a preset base. By taking a monocrystalline silicon piece as a mother substrate, the grown silicon film can inherit the crystalline quality of the mother substrate, so that the high crystalline quality of the silicon film is guaranteed; and after the silicon film is stripped, the substrate can be repeatedly used after simple processing, and at the same time, the growth process of the vapour chemical deposition silicon film is simple, thereby being able to effectively reduce production costs of the silicon film.

IPC Classes  ?

• H01L 21/762 - Dielectric regions

Abstract

The present invention provides a slurry-bed reactor comprising: a reactor vessel (1), at least one center descending pipe (14) in the reactor vessel (1), at least one center injectors (15) in the center descending pipe, a plurality of peripheral injectors (13) provided along an inner wall of the reactor vessel (1) and a gas distributor (27) at the bottom of the reactor vessel, a middle external circulation apparatus and/or a top external circulation apparatus. The middle external circulation apparatus draws out at least a portion of slurry materials and at least a portion of the slurry materials is recycled back to the reactor vessel, the top external circulation apparatus draws out at least a portion of gas materials in the reactor vessel and at least a portion of the gas materials is recycled back to the reactor vessel, wherein, the peripheral injectors (13) are provided along the inner wall of the reactor vessel (1). The openings of at least one of the peripheral injectors (13) are directed obliquely upwardly and form an angle of 5°~ 80°, preferably 10°~60° with the horizontal plane. The horizontal vector of the opening direction of the peripheral injectors (13) is tangential to an inner wall of the reactor vessel (1). Examples of the reactor enhance particle suspension, liquid-solid mixing, and/or heat transfer and mass transfer in the slurry-bed reactor through internal and external circulation. The present invention further provides a method for conducting a slurry bed reaction using the slurry-bed reactor.

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
• C07C 1/04 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of carbon from carbon monoxide with hydrogen
• C10G 2/00 - Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon

Abstract

A slurry-bed reaction equipment comprises a reaction apparatus (101) and a separation apparatus (6) located outside of the reaction apparatus (101). The separation apparatus (6) is in flow communication with the reaction apparatus (101) and located downstream of the reaction apparatus (101). The separation apparatus (6) includes at least one separator (11) and a condensation region (15), and at least a part of the separator (11) is located in the condensation region (15) for enhancing the separation by condensation. A method for conducting a slurry-bed reaction using the reaction equipment is also provided.

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
• C07C 1/04 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of carbon from carbon monoxide with hydrogen
• C10G 2/00 - Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon

Abstract

A slurry-bed reactor is provided in the present invention, which comprises: a reactor vessel (1), a plurality of descending pipes (28), a plurality of injectors (13) and a gas distributor (27) provided in the reactor vessel, a middle external circulation apparatus and/or a top external circulation apparatus, wherein the middle external circulation apparatus draws out at least a portion of slurry materials in the reactor vessel and at least a portion of the slurry materials is recycled back to the reactor vessel, the top external circulation apparatus draws out at least a portion of gas materials in the reactor vessel and liquid materials separated from at least a portion of the gas materials is recycled back to the reactor vessel, wherein the plurality of descending pipes are provided along the inner wall of the reactor vessel (1), the injectors (13) are provided at different vertical height in a central region of the vessel (1) with injector openings of injectors (13) being directed upwardly or obliquely upwardly. The particle suspension, liquid-solid mixing,mass transfer and heat transfer are enhanced by the slurry circulation in the slurry-bed reactor. A method for conducting the slurry-bed reaction is also provided in the present invention.

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
• C07C 1/04 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of carbon from carbon monoxide with hydrogen
• C10G 2/00 - Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon

Abstract

The present invention provides a slurry-bed reactor comprising a reactor housing (1), and the following components arranged on or in the reactor housing (1): an upper outlet (13),a fluid conduction pipe (17), a lower inlet (12). The fluid conduction pipe (17) is set vertically in the housing and allows slurry-bed slurry to flow in from upper opening of the fluid conduction pipe. The lower inlet (12) is in communication with the slurry-bed receiving space. The upper outlet (13) is used to discharge gas in the housing,wherein at least one nozzle is provided in said fluid conduction pipe (17) with its opening directed downward or obliquely downward. The slurry-bed reactor according to the present invention can be used for slurry bed reaction, such as Fischer-Tropsch reaction, and can have highly efficient internal circulation within a reaction system.

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

A method for conducting Fischer-Tropsch synthesis reaction comprising the following steps: i) introducing gas raw materials containing CO and H2 into a Fischer-Tropsch reactor, and reacting with each other under a controlled reaction condition and thereby generating hydrocarbon products containing two or more carbon atoms, and gaseous byproducts containing H20, CH4 and C02, wherein the controlled reaction condition reduces the single-cycle conversion rate of CO; ii) taking at least a portion of the tail gas from step (i) and mixing them with fresh gas raw materials containing CO and H2, removing C02 and water from the mixed materials; iii) introducing the gas materials from step (ii) into the Fischer-Tropsch reactor and repeating steps (i) and (ii). The method of the present invention can reduce water content in the reaction system by a recycling operation and a dewaterization unit, and decrease the possibility of inactivation of cobalt-based catalysts caused by moisture.

IPC Classes  ?

• C10G 2/00 - Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon
• C07C 1/04 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of carbon from carbon monoxide with hydrogen

Abstract

The present invention provides a slurry-bed reactor comprising a reactor housing (1), and a lowergas inlet assembly, a reaction zone vessel (6), sedimentation tube (5) and an upper outlet (14), wherein the upper outlet (14) is used for discharging gas materials from said chamber and said lowergas inlet assembly is a Venturi equipment. The outlet of the lowergas inlet assembly is in fluid communication with the lower part of the reaction zone vessel (6)and the lower end of the sedimentation tube (5) is in fluid communication with the flank of the lowergas inlet assembly. The inside of the reactor house is configured to allow a slurry to pass through the reaction zone vessel (6), the sedimentation tube (5), the lower gas inlet assembly and the reaction zone vessel (6) sequentially to form a flow cycle. In examples described, the gas inlet assembly facilitates the mixing and mass transfer efficiency in said reactor. The present invention also provides a method for conducting slurry-bed reaction using the slurry-bed reactor.

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

The invention relates to a process for the preparation of synthesis gas. Process for the preparation of synthesis gas by auto-thermal reforming of carbon dioxide and methane comprising the steps of (a) introducing a methane-comprising feed gas, carbon dioxide and an oxygen-containing gas into a carbon dioxide-methane auto-thermal reforming reactor comprising a bed of reforming catalyst; (b) mixing the methane-comprising feed gas, carbon dioxide and oxygen-containing gas; (c) reacting methane with oxygen in an oxidation reaction; (d) reacting methane with carbon dioxide in a reforming reaction in the presence of the reforming catalyst using the heat released in the oxidation reaction in step (c); and (e) recovering the synthesis gas produced in steps (c) and (d). The process realizes the self-supply of heat in the high temperature reforming reactor by utilizing the heat generated in the exothermic oxidation reaction between methane and oxygen in the endothermic carbon dioxide-methane reforming reaction. The invention, accordingly, not only solves the heating problems of the reforming reactor at high temperatures, but also decreases the energy consumption and operating cost of the system.

IPC Classes  ?

• C01B 3/38 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts

Abstract

The invention relates to a reactor for the auto-thermal reforming of methane and carbon dioxide comprising a vertically oriented furnace body (1) provided with gas inlet means (12, 13) and gas outlet means (14), wherein (a) the furnace body (1) comprises from top to bottom mixing means (5), gas distribution means (2), a combustion chamber (6), a reforming reaction chamber (7) and a gas-collecting chamber (8) fluidly connected with gas outlet means (14); (b) the gas inlet means (12) comprises a gas nozzle (11) positioned at the top of the furnace body (1) and extends into combustion chamber (6) along the vertical longitudinal axis (15) of the furnace body (1) through mixing means (5) and gas distribution means (2); and (c) the gas distribution means (2) is positioned around the outlet end of the gas nozzle (11). The invention also relates to a process for the preparation of synthesis gas using the above reactor. In this process methane-comprising gas (CH4), carbon dioxide (CO2) and an oxygen-containing gas (O2) are fed into the auto-thermal reforming reactor and the heat released by the oxidation reaction between CH4 and O2 is provided as heat source to promote the reforming reaction between CO2 and CH4, thereby forming synthesis gas.

IPC Classes  ?

• C01B 3/38 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts

Abstract

The present invention provides a method for preparing vinyl chloride with acetylene and dichlorethane. The present invention is a method for preparing vinyl chloride with acetylene and dichlorethane for large-scale industrial production. Acetylene, dichlorethane vapor and hydrogen chloride gas at a molar ratio of 1:(0.3-1.0):(0-0.20) are mixed; the starting mixed gas is preheated; the preheated starting mixed gas is charged into a reactor containing a catalyst and reacts; the resultant mixed gas is cooled to 30-50oC and pressurized to 0.4-1.0 MPa, and then cooled to ambient temperature, and further frozen to -25-15oC for liquefaction isolation, and unfluidified gas is recycled and reused; fluidified liquid is sent to a rectifying tower for rectification, and vinyl chloride monomers meeting polymerization requirements are obtained. The present invention has the advantages of eliminating mercury contamination completely, simplifying the reactor structure, recycling hydrogen chloride and acetylene, omitting waterwash process, avoiding mass production of waste acid and improving utilization of chlorine.

IPC Classes  ?

• C07C 17/08 - Preparation of halogenated hydrocarbons by addition of hydrogen halides to unsaturated hydrocarbons
• C07C 17/25 - Preparation of halogenated hydrocarbons by splitting-off hydrogen halides from halogenated hydrocarbons
• C07C 21/06 - Vinyl chloride

Abstract

The present invention discloses a catalyst used in preparing vinyl chloride, its method of preparation, and its applications. Said catalyst used in making vinyl chloride comprises activated carbon as a support, a barium compound and a phosphorus compound supported thereon. The barium compound accounts for 0.2% to 20% of the total mass of the catalyst and the phosphorus compound accounts for 0% to 10% of the total mass of the catalyst based on the mass percentage. A water-soluble barium compound, a water-soluble phosphorus compound, an aqueous polymer monomer, and water are mixed to form a solution or emulsion A. The activated carbon is added into the solution or emulsion A. The activated carbon is removed from water after impregnation, spin-dried, and then the monomers are polymerized. The activated carbon, after polymerization step, is heated to remove water and to decompose and carbonize the polymer. The catalyst after carbonization was activated to obtain a catalyst used in making vinyl chloride.

IPC Classes  ?

• B01J 37/34 - Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves
• B01J 21/18 - Carbon
• 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 23/06 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of zinc, cadmium or mercury
• B01J 27/00 - Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogenCatalysts comprising carbon compounds
• C07C 17/25 - Preparation of halogenated hydrocarbons by splitting-off hydrogen halides from halogenated hydrocarbons
• C07C 21/00 - Acyclic unsaturated compounds containing halogen atoms
• C07C 21/02 - Acyclic unsaturated compounds containing halogen atoms containing carbon-to-carbon double bonds
• B01J 27/18 - PhosphorusCompounds thereof containing oxygen with metals
• C07C 17/08 - Preparation of halogenated hydrocarbons by addition of hydrogen halides to unsaturated hydrocarbons
• B01J 37/02 - Impregnation, coating or precipitation
• B01J 37/08 - Heat treatment
• B01J 27/138 - HalogensCompounds thereof with alkaline earth metals, magnesium, beryllium, zinc, cadmium or mercury
• B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts

Abstract

The present invention provides an image sensor and a manufacturing method thereof. The image sensor comprises a semiconductor substrate, an optical sensing device, and a pixel readout circuit. The semiconductor substrate comprises a support substrate, and a first buried insulating layer, a first semiconductor layer, a second buried insulating layer, and a second semiconductor layer that cover a surface of the support substrate sequentially. The first semiconductor layer and the second semiconductor layer are different in thickness. The optical sensing device is located at the thicker semiconductor layer. The pixel readout circuit is located at the thinner semiconductor layer. In order to implement the image sensor, the present invention provides two manufacturing methods, using an ion-implantation method and a bonding method respectively to provide a substrate having the first and second buried insulating layers and the first and second semiconductor layers and manufacture the image sensor. The image sensor provided by the present invention has desirable radiation resistance performance and desirable semiconductor properties, and the photosensitive region has high light absorption efficiency.

IPC Classes  ?

• H01L 27/146 - Imager structures
• H04N 5/335 - Transforming light or analogous information into electric information using solid-state image sensors [SSIS]

Abstract

A catalyst for preparing vinyl chloride, a preparation method therefor and the use thereof. The catalyst for preparing vinyl chloride consists of activated carbon as a support, and a compound supported with barium and a phosphorous compound, with the compounds of barium and phosphor making up 0.2%-20% and 0%-10% by mass percentage respectively, based on the total mass of the catalyst. A water-soluble barium compound and a water-soluble phosphorous compound and an aqueous polymeric monomer are formulated into a solution or emulsion A by adding water; the activated carbon is added into the solution or emulsion A for immersion; the immersed activated carbon is taken out and spin-dried, and then the monomer is polymerised; the polymerised activated carbon is heated and dewatered to decompose and carbonise the polymer; and the carbonised catalyst is activated to obtain the catalyst for preparing vinyl chloride.

IPC Classes  ?

• B01J 27/18 - PhosphorusCompounds thereof containing oxygen with metals
• 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
• C07C 21/06 - Vinyl chloride

Abstract

Disclosed are gossypol derivatives, preparation methods and uses thereof in the manufacture of antitumor medicaments. Pharmaceutical compositions containing the said gossypol derivatives and preparation methods thereof are also disclosed.

IPC Classes  ?

• C07D 499/21 - Heterocyclic compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula: , e.g. penicillins, penemsSuch ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring with a nitrogen atom directly attached in position 6 and a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, e.g. an ester or nitrile radical, directly attached in position 2
• C07C 251/24 - Compounds containing nitrogen atoms doubly- bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to carbon atoms of six-membered aromatic rings
• C07D 209/20 - Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals substituted additionally by nitrogen atoms, e.g. tryptophane
• A61K 31/431 - Compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula , e.g. penicillins, penems containing further heterocyclic ring systems, e.g. ticarcillin, azlocillin, oxacillin
• A61K 31/195 - Carboxylic acids, e.g. valproic acid having an amino group
• A61K 31/405 - Indole-alkanecarboxylic acidsDerivatives thereof, e.g. tryptophan, indomethacin
• A61K 31/04 - Nitro compounds
• A61K 31/513 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim having oxo groups directly attached to the heterocyclic ring, e.g. cytosine
• A61P 35/00 - Antineoplastic agents
• C07D 499/16 - Preparation of salts of alkali or alkaline earth metals
• C07D 499/10 - Modification of an amino radical directly attached in position 6
• C07C 249/02 - Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton of compounds containing imino groups