Abstract

The present invention relates to a flow quantification method for a drilling flow, and a viscosity monitoring technique using same, and to a flow quantification method for a drilling flow in an annular pipe which enables a fluid to flow by means of a pressure difference between an entrance and an exit thereof, and enables the generation of a rotational flow by means of a rotational motion thereof, and a viscosity monitoring technique using same, the present invention comprising: a flow state measurement step for measuring the pressure, flow rate of an entrance and an exit of an annular pipe, and the total torque, number of rotations, pressure drop and flow rate of the annular pipe; an energy dissipation rate calculation step for calculating an energy dissipation rate according to the flow state measured in the flow state measurement step; and a viscous behavior calculation step for calculating an effective shear rate on the basis of the energy dissipation rate, and calculating viscous behavior of a fluid in the annular pipe by means of the effective shear rate. In addition, the viscous behavior calculation step enables the measurement of viscous behavior in a drilling flow in the annular pipe, the drilling flow having a rotational flow and a pressure differential flow occurring in a complex manner. In addition, according to the present invention, the effect is achieved of enabling the calculation and monitoring of the viscous behavior, pressure drop, flow rate and torque of mud which is drilling-flowing in the annular pipe. In addition, the present invention has the effect of enabling the viscosity of mud to be accurately measured even when eccentricity occurs as a result of a bending of the annular pipe.

IPC Classes  ?

• G01N 11/14 - Investigating flow properties of materials, e.g. viscosity or plasticityAnalysing materials by determining flow properties by moving a body within the material by using rotary bodies, e.g. vane
• G01D 21/02 - Measuring two or more variables by means not covered by a single other subclass
• G01N 11/00 - Investigating flow properties of materials, e.g. viscosity or plasticityAnalysing materials by determining flow properties

Abstract

The present invention pertains to a nano clay mineral-based drilling mud, and a method for producing same. The nano clay mineral-based drilling mud comprises a solvent and smectite clay mineral nanoparticles, wherein the solvent is distilled water or salt water, the size of the smectite clay mineral nanoparticles is 10 nm to 10 μm, and 90-99.9 wt% of the solvent and 0.1-10 wt% of the smectite clay mineral nanoparticles are blended. The method for producing the nano clay mineral-based drilling mud comprises a step of ultrasonic or homomixer treatment.

IPC Classes  ?

• C09K 8/14 - Clay-containing compositions
• C09K 8/03 - Specific additives for general use in well-drilling compositions

Abstract

The present invention relates to an electromagnetic exploration system based on an airship with adjustable depth of investigation, in which a transmission coil (transmitter loop) and a reception coil (receiver loop) are arranged in two individual airships for flight, respectively, to enable deep depth of investigation even though the investigation is aerial exploration far from the ground, and the separation distance between the two airships in flight is differently adjusted for each measurement and a flight separation distance set for each measurement can be stably maintained during flight for the corresponding measurement, so that underground exploration data with various depths according to the geography of an exploration area can be obtained. The system comprises: a leading airship which includes a transmitter loop installed therein and flies along a configured flight route while forming a primary magnetic field; a following airship which includes a receiver loop installed therein and flies along a configured flight route while being spaced a configured separation distance apart from the leading airship, to detect a secondary magnetic field; and a measurement control device for analyzing a measurement value of the secondary magnetic field detected from the receiver loop of the following airship, to perform aerial electromagnetic exploration.

IPC Classes  ?

• G01V 3/16 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for use during transport, e.g. by a person, vehicle or boat specially adapted for use from aircraft
• G01V 3/165 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for use during transport, e.g. by a person, vehicle or boat operating with magnetic or electric fields produced or modified by the object or by the detecting device
• B64B 1/06 - Rigid airshipsSemi-rigid airships
• B64D 47/00 - Equipment not otherwise provided for
• B64D 45/00 - Aircraft indicators or protectors not otherwise provided for

Abstract

Provided are a method for recovery of a high-grade scheelite concentrate and a facility for recovery of a scheelite concentrate. Specifically, provided is a method for recovery of a high-grade scheelite concentrate, the method comprising the steps of: mixing particulate products of scheelite ore with water to form an ore solution; subjecting the ore solution to froth flotation to obtain a rougher scheelite concentrate; and subjecting the rougher scheelite concentrate to froth flotation to obtain a selective scheelite concentrate, wherein the step for obtaining a rougher scheelite concentrate comprises a step for sequentially adding a pH adjuster and an inhibitor to the ore solution, and wherein the pH adjuster is Na2CO3 and the amount of the pH adjuster added is equal to or more than 2 kg/t and equal to or less than 3.5 kg/t; and the inhibitor is Na2SiO3 and the amount of the inhibitor added is equal to or more than 3.5 kg/t and equal to or less than 4.5 kg/t or less.

IPC Classes  ?

• C22B 3/20 - Treatment or purification of solutions, e.g. obtained by leaching
• C22B 34/34 - Obtaining molybdenum
• C22B 34/36 - Obtaining tungsten
• B03D 1/02 - Froth-flotation processes
• B03B 5/28 - Washing granular, powdered or lumpy materialsWet separating by sink-float separation

Abstract

The present invention relates to a method for separating and sorting limonite ore and saprolite ore from nickel laterite ores. A method for separating and sorting laterite ores, according to the present invention, separates gangue, which exceeds a first particle size, and intermediate products of the first particle size or less from each other through particle size separation for raw laterite ores, and then removes the moisture of the intermediate products. In addition, the intermediate products are crushed so as to have a second particle size or less, and then the crushed intermediate products are classified and separated into a first product and a second product. The separated coarse first product is classified as saprolite ore and used as a raw material for dry refining, and the second fine product is classified as limonite ore and used as a raw material for wet refining.

IPC Classes  ?

• B02C 23/14 - Separating or sorting of material, associated with crushing or disintegrating with more than one separator
• B07B 1/14 - Roller screens
• B07B 1/22 - Revolving drums
• B02C 21/00 - Disintegrating plant with or without drying of the material
• B02C 13/00 - Disintegrating by mills having rotary beater elements
• B02C 19/06 - Jet mills

Abstract

The present invention relates to an apparatus for collecting useful metal ions from an aqueous solution and a method for collecting useful metal ions using the same, and provides an apparatus for collecting useful metal ions and a method for collecting useful metal ions using the same, the apparatus comprising: an adsorption/desorption reaction tank having at least one ion-collecting column for adsorbing metal ions in a supplied aqueous solution; a washing water storage tank having washing water stored therein, which is supplied to the ion-collecting column onto which the metal ions are adsorbed; and an extracted-solution storage tank having an extracted solution stored therein, which is supplied to the ion-collecting column to elute the adsorbed metal ions. The present invention is environmentally-friendly since the present invention reuses washing water frequently used in a process of adsorbing, desorbing, and collecting metal ions in an aqueous solution without discharging the washing water to the outside, thereby achieving a continual supply of washing water. In addition, the present invention can collect useful metal ions through an integrated process, thereby remarkably reducing energy required for collecting ions.

IPC Classes  ?

• C22B 3/20 - Treatment or purification of solutions, e.g. obtained by leaching
• C22B 3/42 - Treatment or purification of solutions, e.g. obtained by leaching by ion-exchange extraction
• C22B 3/24 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means by adsorption on solid substances, e.g. by extraction with solid resins
• C22B 3/02 - Apparatus therefor
• C22B 3/04 - Extraction of metal compounds from ores or concentrates by wet processes by leaching

Abstract

The present invention relates to a method for designing a flushing system. The flushing system comprises a network including a plurality of perforated pipes which are installed within a limestone layer of a successive alkalinity producing system (SAPS) for mine drainage treatment in order to remove sludge settled in the limestone layer. The present invention provides a method for calculating fluid velocity when mine drainage passes through a hole of a perforated pipe in an SAPS, and a method for designing a flushing system using the method for calculating fluid velocity.

IPC Classes  ?

• C02F 1/66 - Treatment of water, waste water, or sewage by neutralisationTreatment of water, waste water, or sewage pH adjustment
• C02F 11/14 - Treatment of sludgeDevices therefor by de-watering, drying or thickening with addition of chemical agents
• B01D 24/46 - Regenerating the filtering material in the filter
• C02F 103/10 - Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
• C02F 11/12 - Treatment of sludgeDevices therefor by de-watering, drying or thickening

Abstract

The present invention relates to a detection method for detecting a change in an underground environment. The detection method of the present invention comprises the steps of: repeatedly sensing an alternating current signal, propagated through the underground, by means of magnetic induction; and monitoring the change in the underground environment from a change in the alternating current signal.

IPC Classes  ?

• G01V 3/30 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with electromagnetic waves
• G01B 15/06 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring the deformation in a solid
• G01N 23/00 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or
• G01V 3/38 - Processing data, e.g. for analysis, for interpretation or for correction
• G06Q 50/00 - Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism

Abstract

The present invention relates to a marine magnetic force exploration measurement method and system. The marine magnetic force exploration measurement method, according to the present invention, comprises: a measurement step for towing a magnetometer while moving a probe in a circular route on the basis of the center point in an area to be searched, and for measuring an earth's magnetic field value by using the magnetometer according to the progress angle of the probe measured in the clockwise direction on the basis of the true north; a data input step for receiving, from a calculation unit, both data with respect to the angle of the probe and data with respect to the earth's magnetic field value measured in the angle; a calculation step of setting a disturbance magnetic field value derived by the probe, which is included in the earth's magnetic field value measured in the calculation unit in which a calculation program is installed; and a step of calculating a real earth's magnetic field value by deducting the disturbance magnetic field value from the measured earth's magnetic field value.

IPC Classes  ?

• G01R 33/00 - Arrangements or instruments for measuring magnetic variables
• G01R 29/08 - Measuring electromagnetic field characteristics

Abstract

The present invention relates to a two-step continuous synthesis reaction of precipitated calcium carbonate (PCC) of synthesizing white precipitated calcium carbonate (PCC) in unbleached pulp, which has the effect of replacing conventional bleaching processes to thereby reduce toxic substances by a bleaching agent, reduce costs for the bleaching process, reduce environmental pollutants generated due to the bleaching agent, and enhance the whiteness of the unbleached pulp. In addition, the present invention relates to a method for manufacturing multilayer paper by utilizing unbleached pulp comprising precipitated calcium carbonate (PCC) through a two-step continuous synthesis reaction of the precipitated calcium carbonate (PCC).

IPC Classes  ?

• D21H 27/30 - Multi-ply
• D21H 21/32 - Bleaching agents
• D21H 17/67 - Water-insoluble compounds, e.g. fillers or pigments

Abstract

The present invention relates to a sample pretreatment system for separating, from a sample, and collecting carbon dioxide in order to perform radiocarbon dating using AMS, the system comprising: a plurality of sample pretreatment apparatuses; a pumping line connected to the plurality of sample pretreatment apparatuses; and a pump which is connected to the pumping line and forms flow paths within the sample pretreatment apparatuses at a negative pressure. Also, the sample pretreatment apparatuses each comprise: a vacuum-processing line; a sample introduction part; and a cooling unit. The vacuum-processing line has a base line, trap parts, and a collection part formed thereon, wherein the base line is a hollow pipe for moving the sample; the trap parts are fitted and connected to the middle of the base line and allow the sample, which is in a gaseous state or is converted into a gaseous state, to be cooled and received therein; and the collection part is fitted and connected to the base line at the rear end of the trap part and collects carbon dioxide gas, which is separated from the sample. The sample introduction part is mounted on one end of the vacuum-processing line so that the sample is received and introduced into the vacuum-processing line. The cooling unit is capable of cooling the temperature of the trap part selectively at a first temperature, which is below the freezing point of carbon dioxide, and at a second temperature, which exceeds the freezing point of carbon dioxide.

IPC Classes  ?

• G01N 1/42 - Low-temperature sample treatment, e.g. cryofixation
• G01N 1/24 - Suction devices
• G01N 27/62 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosolsInvestigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electric discharges, e.g. emission of cathode
• G01N 30/72 - Mass spectrometers
• H01J 49/04 - Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locksArrangements for external adjustment of electron- or ion-optical components
• H01J 49/26 - Mass spectrometers or separator tubes

Abstract

The present invention relates to a waste battery treatment apparatus using continuous heat treatment, and a method for recovering valuable metals from lithium-based batteries using the same, the waste battery treatment apparatus comprising: a frame (10); a reaction reservoir (30) which is disposed in the inner space of the frame (10) and has thereinside a treatment space (S1) in which waste batteries to be treated are disposed; an inlet (33) in which a gas blocking door (34) is disposed so as to selectively communicate the treating space (S1) with the outside, and which serves as a path through which an object to be treated is inputted to the treating space (S1) of the reaction reservoir (30). In addition, the waste battery treatment apparatus is provided with a vacuum forming means (40) which is connected to the treatment space (S1) of the reaction reservoir (30) to vacuumize the treatment space (S1). In the treatment apparatus of the present invention, since the inside of the reaction reservoir (30) is vacuumized and, at the same time, an inert gas is injected thereinto while a pretreatment process of waste batteries is performed in the reaction reservoir (30), the waste batteries are prevented from exploding during heat treatment, whereby work stability can be improved.

IPC Classes  ?

• H01M 10/54 - Reclaiming serviceable parts of waste accumulators
• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells

Abstract

The present invention relates to a method for simultaneously recovering cobalt (Co) and manganese (Mn) from a lithium based battery, the method being capable of simultaneously recovering highly pure cobalt and manganese from a lithium base battery, as a purification resource containing a great quantity of cobalt and manganese, by means of a multilevel leaching method and an electrowinning method. The method of the present invention has an effect of providing a recovery method which is capable of simultaneously recovering highly pure cobalt and manganese from a lithium base battery, as a purification resource, and which is economically feasible compared to conventional methods.

IPC Classes  ?

• H01M 10/54 - Reclaiming serviceable parts of waste accumulators
• C22B 23/00 - Obtaining nickel or cobalt
• C22B 47/00 - Obtaining manganese
• C25C 3/02 - Electrolytic production, recovery or refining of metals by electrolysis of melts of alkali or alkaline earth metals

Abstract

The present invention relates to a lithium adsorbent using an alumina structure and a method for preparing the same. The lithium adsorbent according to the present invention is prepared using an alpha(α)-alumina structure, and thus, has effects of being physicochemically stable, being easy to treat and recover, and exhibiting excellent lithium adsorption performance.

IPC Classes  ?

• B01J 20/30 - Processes for preparing, regenerating or reactivating
• B01J 20/08 - 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 comprising aluminium oxide or hydroxideSolid 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 comprising bauxite
• B01J 6/00 - CalciningFusing

Abstract

Disclosed is a method for measuring density change of an underground material. In order to measure density change of an underground material, a borehole is formed on the top portion of the underground material which is subjected to measurement; and a first gravimeter and a second gravimeter are respectively installed on the outside and inside of the formed borehole. Subsequently, density change of the material which is subjected to measurement is calculated on the basis of a first gravity change and a second gravity change measured using the first gravimeter and the second gravimeter. According to the method for measuring density change of an underground material, it is possible to accurately measure density change of an underground material which is subjected to measurement, such as oil, gas, etc. stored in an underground reservoir, and carbon dioxide, injected into underground storage.

IPC Classes  ?

• G01N 9/00 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity
• G01V 7/00 - Measuring gravitational fields or wavesGravimetric prospecting or detecting

Abstract

The present invention relates to a high-pressure fluid storage tank and a construction method thereof. The high-pressure fluid storage tank, according to the present invention, is laid in a cavern formed by excavating the ground in order to store high-pressure fluid. The high-pressure fluid storage tank comprises: a tank body that is formed of a sealing material and having a receiving section formed therein for storing high-pressure fluid, the tank body being formed by sequentially stacking and coupling a plurality of segments in the longitudinal direction; a reinforcing material disposed to surround the tank body while being separated from the tank body; a backfill layer in which the reinforcing material is laid, the backfill layer being formed of a backfill material filling a space between the tank body and the cavern; and a plug for closing the cavern.

IPC Classes  ?

• E04H 7/02 - Containers for fluids or gasesSupports therefor

Abstract

The present invention relates to a high-pressure fluid storage system and a construction method therefor. The high-pressure fluid storage system according to the present invention comprises: a first horizontal tunnel formed at a predetermined depth in the ground in the lateral direction; a cavern formed by excavating the ground downward from the first horizontal tunnel; and a fluid storage tank, wherein the fluid storage tank includes: a tank body that has fluid stored therein and is inserted into the cavern; a backfill layer formed by a backfill material filling a space between the tank body and the inner wall of the cavern; and a first plug formed by filling the first horizontal tunnel with a backfill material to close the upper portion of the cavern.

IPC Classes  ?

• E04H 7/02 - Containers for fluids or gasesSupports therefor

Abstract

The present invention relates to complex copper ore beneficiation method. The complex copper ore beneficiation method according to the present invention comprises: a particle-size separation step which is carried out on a copper complex starting ore that contains gangue minerals and copper-containing minerals and has been crushed and ground; a first concentrate production step, for producing copper concentrate, comprising a first copper settling-out step involving the settling out of copper carried out on product of a size larger than a first reference particle size in the particle-size separation step, a copper precipitation step involving forming copper sulphide by introducing a sulphide-forming precipitation agent into the ore solution from which the copper has been allowed to settle out, and a first copper separation step involving separating out the copper sulphide by effecting further particle size separation based on a second reference particle size of less than the first reference particle size; and a second concentrate production step, for producing copper concentrate, comprising a second copper settling-out step involving the settling out of copper carried out on product of a size smaller than the first reference particle size in the particle-size separation step, a copper deposition step involving depositing copper by means of a cementation action by introducing a reducing agent having magnetic properties into the ore solution from which the copper has been allowed to settle out, a magnetic sorting step involving separating out magnetic material in the mineral solution via magnetic sorting after the copper deposition step, and a second copper separation step involving separating out copper via flotation beneficiation carried out on the magnetic material separated out in the magnetic sorting step.

IPC Classes  ?

• C22B 3/06 - Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions
• B07B 1/00 - Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
• C22B 15/00 - Obtaining copper

Abstract

The present invention concerns a device for recovering lithium comprised in a solution such as sea water, and relates to a sea water lithium-recovery device and lithium-recovery station using coastal-water-based lithium-adsorption equipment and shore-based lithium-isolation equipment, and to a lithium desorption device using aeration.

IPC Classes  ?

• C22B 26/12 - Obtaining lithium
• C02F 1/28 - Treatment of water, waste water, or sewage by sorption

Abstract

The present invention relates to a geopolymer mix design method. The geopolymer mix design method according to the present invention for determining the mixing ratio of a geopolymer prepared by mixing a basic material containing an aluminosilicate component, an alkaline activator and water comprises: a material analysis step for selecting a basic material and an alkaline activator and analyzing the chemical composition; a basic calculation step for calculating the respective number of moles of Si, Al, Na and H per unit weight of the materials; a target setting step for setting standard values with respect to main factors including the Si/Al molar ratio and the Na/Al molar ratio in the finally prepared geopolymer; and a mixing ratio calculation step for calculating, on the basis of the result calculated at the basic calculation step, the mixing ratio of respective materials so as to meet the standard values of the main factors, which are set at the target setting step, in a mixture obtained by mixing the materials.

IPC Classes  ?

• C04B 28/24 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl ammonium or alkali metal silicatesCompositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing silica sols
• C04B 22/00 - Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators

Abstract

The present invention relates to a method for stabilising heavy metals by means of capsulation and carbon dioxide fixing and as a result of an accelerated carbonation reaction in a low water-content state of biowaste incineration bottom ash. More specifically, the present invention relates to a method for suppressing elution of harmful heavy metals and particularly chromium (Cr) and fixing CO2 by using an accelerated carbonation reaction in order to capsulate highly alkaline biowaste incineration bottom ash. The invention relates to a technique which alleviates the problem that occurs with bottom ash as a whole due to the very high environmental instability of bottom ash having a particle size of 0.15 mm through such a method, thereby making it possible to reuse the bottom ash as a whole by first separating by particle size and then subjecting bottom ash having a particle size of up to 0.15 mm to carbonation. The aim of the present invention is to provide a method of effectively stabilising harmful heavy metals contained in fine-powder incineration bottom ash having a particle size of up to 0.15 mm and effectively fixing CO2 gas produced following the incineration of biowaste. In order to achieve the above aim, the present invention provides a method of stabilising heavy metals by capsulation and fixing carbon dioxide as a result of an accelerated carbonation reaction in the low-water-content state in the biowaste incineration bottom ash, the method comprising a step of creating incineration bottom ash after incinerating biowaste, a step of mixing the incineration bottom ash with water in a solid-liquid ratio (water/bottom ash, dm3/kg) of 0.3, and a step in which, without processing by mixing a reducing agent into the incineration ash mixed with the water, a 30 vol.% carbon dioxide gas takes part in a carbonation reaction for between 20 minutes and 240 minutes at a rate of 1 l/min, and the present invention provides a technique for the accelerated carbonation of fine-powder bottom ash having a particle size of up to 0.15 mm which has been a problem when reusing bottom ash as a whole through such a method, thereby making it possible to reuse the bottom ash as a whole.

IPC Classes  ?

• A62D 3/37 - Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by reduction, e.g. hydrogenation
• B09B 3/00 - Destroying solid waste or transforming solid waste into something useful or harmless
• A62D 101/43 - Inorganic substances containing heavy metals, in the bonded or free state

Abstract

The present invention relates to an ion-exchange manganese oxide lithium adsorbent using a porous structure and to a method for preparing same. The lithium adsorbent according to the present invention is prepared such that said adsorbent is highly dispersed over the surface of the porous structure and has excellent adsorption capacity and physical stability and can be handled with ease. In addition, the adsorption capacity is maximized by improving contact between the adsorbent and a lithium-containing solution through the porous structure, and thus, the lithium is efficiently adsorbed and recovered from a trace amount of the lithium-containing solution.

IPC Classes  ?

• B01J 20/282 - Porous sorbents
• B01J 20/02 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material

Abstract

The present invention relates to a method for concentrating and separately recovering iron from non-metal waste slag generated in a process of refining non-ferrous metal such as copper, zinc and lead, and more particularly, to a method for concentrating and separately recovering iron from non-metal waste slag generated in a process of refining non-ferrous metal such as copper, zinc and lead, the method comprising: adding a reducing agent and reaction catalyst to the non-metal waste slag; changing the crystalline structure of the iron oxide which is bound, in a non-crystalline state, to the alumina(Al2O3), limestone(CaO), magnesium oxide(MgO), quartz(SiO2), zinc oxide(ZnO), copper oxide(CuO) and lead oxide(PbO) among the non-metal waste slag by a solid reduction reaction, into the crystalline structure of reduced iron (Fe) and iron carbide (Fe2C); crushing the crystalline structure to group separate the reduced iron and the iron carbide generated by the solid reduction reaction; and separately recovering the iron as iron concentrate which is a magnet, having a content of non-ferrous metals such as copper, zinc and lead, the sum total of the content being 1% or less, through wet magnetism screening and dry magnetism screening according to particle size. The method for separately recovering iron from non-metal waste slag discharged from a process of refining non-ferrous metal such as copper, zinc and lead by a physical chemical screening method according to the present invention comprises: a step of crushing the non-metal waste slag; a step of mixing the crushed slag with a reducing agent and a reaction catalyst to cause a solid reduction reaction to change the crystalline structure of the iron oxide which is bound, in a non-crystalline state, to the alumina(Al2O3), limestone(CaO), magnesium oxide(MgO), quartz(SiO2), zinc oxide(ZnO), copper oxide(CuO) and lead oxide(PbO) among the non-metal waste slag into the crystalline structure of reduced iron (Fe) and iron carbide (Fe2C); a step of crushing the product to group separate the reduced iron and the iron carbide generated by the solid reduction reaction; a step of separating the crushed product according to particle size; and a step of separately recovering the iron as iron concentrate which is a magnet, through wet magnetism screening and dry magnetism screening. Furthermore, the present technology relates to a method for recovering the zinc contained in the non-metal waste slag by reduction volatilization in the solid reduction reaction step, and enabling the non-magnetic residuals which contain a small amount of iron and have no environmental problems to be made into a resource as a cement material. According to the present invention, the non-metal waste slag which is an industrial waste discharged from a process of refining non-ferrous metal such as copper, zinc and lead undergoes a solid reduction reaction at the temperature of melting iron or lower to change the crystalline structure of the iron oxide which is bound, in a non-crystalline state, to the alumina(Al2O3), limestone(CaO), magnesium oxide(MgO), quartz(SiO2), zinc oxide(ZnO), copper oxide(CuO) and lead oxide(PbO) among the non-metal waste slag into the crystalline structure of reduced iron (Fe) and iron carbide (Fe2C), and the crystalline structure is crushed. Then, the reduced iron and the iron carbide generated by the solid reduction reaction are group separated from components such as alumina(Al2O3), limestone(CaO), magnesium oxide(MgO), quartz(SiO2), zinc oxide(ZnO), copper oxide(CuO) and lead oxide(PbO), and the iron is separately recovered as iron concentrate which is a magnet, having a content of non-ferrous metals such as copper, zinc and lead, the sum total of the content being 1% or less, through wet magnetism screening and dry magnetism screening. Presently, non-metal waste slag contains a significantly large amount of iron, 35 to 45 weight%. However, the slag also contains the sum total of the content of non-ferrous metals such as copper, zinc and lead, the sum total being 4 weight% or more, which might worsen the hot brittleness of steel. Thus, the non-metal waste slag which has not been used as a material for steel can be utilized as a material for steel to thus use the non-metal waste slag as a replacement material for iron ore the whole quantity of which has been imported depending on the domestic conditions of a resource poor country.

IPC Classes  ?

• C22B 7/04 - Working-up slag

Abstract

The present invention relates to a method for concentrating and recovering noble metals from printed circuit boards of discarded mobile phones and catalysts of discarded cars using discarded nonferrous slag, which is industrial waste discharged from a process for refining nonferrous metals such as copper, lead, zinc and the like, and more specifically, to a method for concentrating and recovering gold, silver, platinum, palladium, rhodium and the like contained in printed circuit boards of discarded mobile phones and catalysts of discarded cars by melting discarded nonferrous slag, printed circuit boards of discarded mobile phones and catalysts of discarded cars at a high temperature through a single process to reduce and separate iron oxide contained in the discarded nonferrous slag and simultaneously melting and separating copper, iron, tin, and nickel contained in the printed circuit boards of discarded mobile phones to use the generated iron, copper, tin, and nickel alloy as a collector metal for noble metals. The method for concentrating and recovering noble metals from printed circuit boards of discarded mobile phones and catalysts of discarded cars using discarded nonferrous slag of the present invention comprises the steps of: mixing and melting discarded nonferrous slag and a solvent, which is a slag composition controller; inserting printed circuit boards of discarded mobile phones and catalysts of discarded cars to the obtained molten metal to melt the same; and maintaining the same for a predetermined amount of time to separate the same into a noble metal-collected alloy phase and a slag phase containing no noble metals. In addition, the present invention relates to a method for recovering valuable metals such as iron, copper, tin, nickel and the like in addition to noble metals such as gold, silver, platinum, palladium, and rhodium from printed circuit boards of discarded mobile phones and catalysts of discarded cars, and recycling the generated slag without environmental problems. According to the present invention, the amount of the generated alloy phase is increased without using a collector metal for noble metals such as copper, iron, lead, and nickel and carbon as a reducing agent which increase processing costs by using discarded nonferrous slag, which is industrial waste discharged from a process for refining nonferrous metals such as copper, lead, zinc, and the like, as a solvent, which is a slag composition controller, and a noble metal collector simultaneously, and using a plastic component contained in printed circuit boards of discarded mobile phones as a reducing agent, and thus an alloy phase and a slag phase can be readily separated, thereby simultaneously reducing processing time and minimizing the amount of a solvent such as alumina (Al2O3), quicklime (CaO), magnesia (MgO), iron oxide (FeO) and silica (SiO2). Accordingly, noble metals such as gold, silver, platinum, palladium, rhodium and the like can be concentrated and recovered through a single process by simultaneously treating different industrial waste such as printed circuit boards of discarded mobile phones and catalysts of discarded cars, and waste material can be recycled to be used as a material for the high-technology industry, and thus it is possible to maximize the coefficient of utilization of noble metal resources in resource-poor Korea, which depends on imports for all of noble metal resources.

IPC Classes  ?

• C22B 11/00 - Obtaining noble metals
• C22B 7/04 - Working-up slag

Abstract

The present invention relates to an apparatus for measuring the relative permeability of a core having a saturation measuring unit, and to a method for measuring the relative permeability of the core using the apparatus. The apparatus for measuring the relative permeability of the core includes: a core holder sealing and accommodating a core sample which is the target object for which permeability is measured; a first storage bath connected to the core holder to supply a first fluid into the core holder; a second supply tube connecting the core holder to a second storage bath to supply a second fluid received in the second storage bath into the core holder; a manometer for measuring the difference in pressure of the fluids between the front end and the rear end of the core sample in the direction of the flow of the fluids; a saturation measuring unit for measuring the saturation of the first fluid within the core holder and connected to the core holder so that the first and second fluids are separately received in order to measure the amount of the first fluid when the first and second fluids discharged from the core holder are introduced, the first fluid is discharged into the first storage bath so that the first fluid circulates, and the second fluid is discharged through a path different from that of the first fluid.

IPC Classes  ?

• G01N 15/08 - Investigating permeability, pore volume, or surface area of porous materials
• G01L 1/02 - Measuring force or stress, in general by hydraulic or pneumatic means

Abstract

The present invention relates to a hybrid powder of halloysite nanotube-light scattering nanoparticles, a preparation method thereof, and a UV screening cosmetic composition containing the same as an active ingredient. According to the present invention, the hybrid powder of halloysite nanotube-light scattering nanoparticles prevents the penetration of light scattering nanoparticles into the skin by loading light scattering nanoparticles inside a halloysite nanotube, thereby minimizing side effects and showing excellent UV screening effects. Therefore, the hybrid powder of halloysite nanotube-light scattering nanoparticles of the present invention can be useful in a UV screening cosmetic composition.

IPC Classes  ?

• A61K 9/16 - AgglomeratesGranulatesMicrobeadlets
• A61K 8/27 - ZincCompounds thereof
• A61K 8/29 - TitaniumCompounds thereof
• A61K 8/19 - Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
• A61Q 17/04 - Topical preparations for affording protection against sunlight or other radiationTopical sun tanning preparations
• A61Q 19/00 - Preparations for care of the skin

Abstract

The present invention relates to a method of manufacturing an electrode module for recovering metal ions, an electrode module for recovering metal ions, and a metal ion recovery apparatus including the same. The method of manufacturing the electrode module for recovering the metal ions according to the present invention includes: a step (a) of preparing a first electrode part and a second electrode part to electrically absorb or separate the metal ions contained in liquid; and a step (b) of disposing an insulation layer through which the liquid passes between the first electrode part and the second electrode part. According to the present invention, when specific valuable metal ions are recovered from an aqueous solution in which various valuable metals are contained, the time required for absorbing and separating the ions may be significantly reduced.

IPC Classes  ?

• C25B 9/06 - Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
• C25B 11/00 - ElectrodesManufacture thereof not otherwise provided for
• C25B 11/02 - ElectrodesManufacture thereof not otherwise provided for characterised by shape or form
• B01D 61/46 - Apparatus therefor

Abstract

The present invention relates to a method of fabricating a porous manganese oxide-based lithium absorbent. The method of fabricating the porous manganese oxide-based lithium absorbent includes: a step of mixing a reaction material for synthesizing lithium-manganese precursors with an inorganic binder to prepare a mixture; a step of molding the mixture; a step of thermally treating the molded mixture to fabricate a porous lithium-manganese precursor molded product; and a step of acidifying the porous lithium-manganese precursor molded product to change lithium ions into hydrogen ions. Here, in the thermal treatment process, a gas may be generated to form pores in the porous lithium-manganese precursor molded product. The porous manganese oxide-based lithium absorbent according to the present invention may be easily handled and provide more absorption reaction sites than an existing molded absorbent to improve lithium absorption efficiency.

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
• B01J 20/04 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
• B01J 20/30 - Processes for preparing, regenerating or reactivating
• C01G 45/02 - Oxides
• 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

Abstract

The present invention relates to a method for preparing lithium manganese oxides used as a lithium adsorbent, and more specifically to a method for preparing lithium manganese oxides through a solid state reaction. According to the method, the entire reaction is carried out only through the solid state reaction and thus the problem of waste liquid caused by an existing liquid state reaction can be solved, and the method has an effect suitable for mass production using only a single process.

IPC Classes  ?

• C01G 45/00 - Compounds of manganese
• 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
• 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

Abstract

The present invention relates to the recovery of tin from a waste metal containing tin. A negative electrode and a positive electrode are installed in an alkaline solution, and electrolytic separation is performed, while using the waste metal containing tin as the positive electrode. The tin leached from the positive electrode is precipitated at the negative electrode. The temperature of the alkaline solution is kept between 60-90°C when the electrolytic separation is performed.

IPC Classes  ?

• C25C 1/14 - Electrolytic production, recovery or refining of metals by electrolysis of solutions of tin

Abstract

The present invention relates to a magnetite-birnessite mixture, to a synthesis method therefor, and to a water-treatment method using same. The magnetite-birnessite mixture synthesis method according to the present invention comprises: a first synthesis step in which magnetite is synthesised; a second synthesis step in which manganese is made to adsorb onto the surface of the magnetite by supplying manganese while maintaining a basic state in the presence of the magnetite, and then synthesising birnessite on the surface of the magnetite by supplying an oxidising agent and sodium, thereby synthesising a mixture in which magnetite and birnessite are bound together; and a purification step in which the mixture of magnetite and birnessite is purified.

IPC Classes  ?

• B01J 20/02 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material
• B01J 20/32 - Impregnating or coating
• C02F 1/28 - Treatment of water, waste water, or sewage by sorption
• C02F 1/62 - Heavy metal compounds

Abstract

The present invention relates to a method for preparing a porous manganese oxide-based lithium adsorbent, and more particularly, to a method for preparing a porous manganese oxide-based lithium adsorbent characterized by comprising the steps of: preparing a mixture by mixing an inorganic binder with reaction raw materials for synthesizing a lithium-manganese oxide precursor; molding said mixture; heat-treating said molded mixture so as to produce a porous lithium-manganese precursor molded body; and performing an acidic treatment so as to exchange lithium ions of said porous lithium-manganese oxide precursor molded body with hydrogen ions, wherein gas is generated during said heat treatment so as to form pores in the lithium-manganese oxide precursor molded body. The porous manganese oxide-based lithium adsorbent of the present invention can be easily handled and has high lithium adsorption efficiency by providing more adsorption reaction sites than conventional molded adsorbents.

IPC Classes  ?

• B01J 20/04 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
• B01J 20/30 - Processes for preparing, regenerating or reactivating
• B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties

Abstract

Disclosed is a magnetic force sorting device. The magnetic force sorting device of the present invention comprises: a feeder for accommodating and discharging the raw material being sorted; a transfer belt circulating in one direction, for receiving the raw material from the feeder; and a cylindrical magnet rolling-contacting the inner circumference of one end of the transfer belt. In addition, the present invention includes a separation unit wherein some of the raw materials transferred in one direction at the upper part of the transfer belt are not attached by the magnetic force of the magnet at the end of the transfer belt, and are aberrated from the transfer belt, and the rest of the raw materials are attached by the magnetic force of the magnet at the end of the transfer belt, are transferred to the bottom of the transfer belt, and are aberrated from the transfer belt. The separation units are placed in a plurality, and a separation unit placed at the rear end of the passage of the raw material receives raw material from any one part of the aberrated raw material that has been divided into two parts by the magnetic force at the transfer belt of the separation unit placed on the front end of the passage of the raw material, and divides again using the magnetic force.

IPC Classes  ?

• B03C 1/22 - Magnetic separation acting directly on the substance being separated with material carriers in the form of belts with non-movable magnets
• B03C 1/26 - Magnetic separation acting directly on the substance being separated with free falling material

Abstract

Disclosed is a method for recovering useful minerals from liberated clastic resources, such as sea sand and river sand. The method for recovering useful resources within the clastic resources according to the present invention comprises: a specific gravity sorting step for separating the clastic resources into at least two mineral groups of heavy minerals and light minerals, using the relative weight difference of the minerals included in the clastic resources; a magnetic force sorting step for separating the heavy minerals into a plurality of mineral groups using the selective attachment to a plurality of magnets, according to the difference of magnetism for the minerals within the heavy minerals, while continuously migrating the heavy minerals separated from the specific gravity sorting step to a channel having a plurality of magnets, each with different sizes of magnetic force; and an electrostatic sorting step for sorting target minerals again from at least one of the mineral groups from the plurality of mineral groups, by using the difference in electric property of the minerals included in each of the mineral groups separated in the magnetic force sorting step.

IPC Classes  ?

• B03C 1/22 - Magnetic separation acting directly on the substance being separated with material carriers in the form of belts with non-movable magnets
• B03C 1/26 - Magnetic separation acting directly on the substance being separated with free falling material

Abstract

The present invention relates to preparing ferro molybdenum from molybdenite concentrate, and more particularly, to a method for directly preparing ferro molybdenum having copper content of 0.5% or less from molybdenite with high copper content, without involving a separate process of eliminating copper, by inserting iron in a heating furnace and reacting same at a high temperature to prepare ferro molybdenum on the lower portion, and slag with aluminum sulfide and iron sulfide as main ingredients on the upper portion, so as to have most of the copper (80-95%) in the molybdenite exist in the slag layer. Compared to the existing thermite reaction, the present invention is advantageous in terms of a shorter process and reduced consumption of aluminum, which is a reducing agent.

IPC Classes  ?

• C22C 33/04 - Making ferrous alloys by melting
• C22B 34/34 - Obtaining molybdenum
• C22B 9/05 - Refining by treating with gases, e.g. gas flushing

Abstract

The present invention relates to a method for preparing a ferromolybdenum alloy in a briquette form, wherein the ferromolybdenum alloy is used for adjusting ingredients of a melt in a steelmaking process for manufacturing special steel. More particularly, the present invention relates to a method for preparing a ferromolybdenum alloy briquette, and a briquette prepared by same, wherein the ferromolybdenum alloy briquette is obtained by: mixing mill scale (mixture of Fe, FeO, and Fe2O3) powders discharged from a steel forging process as an iron raw material and molybdenum oxide (MoO3) powders as a molybdenum raw material; reducing this mixture in a powdery state using a hydrogen gas; mixing the prepared ferromolybdenum alloy powders and wax and press-molding the resulting mixture; sintering the press-molded mixture at a high temperature in a hydrogen gas atmosphere; and then cooling down the sintered mixture to prepare a ferromolybdenum alloy in a briquette form.

IPC Classes  ?

• B22F 9/22 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
• B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
• C22C 33/02 - Making ferrous alloys by powder metallurgy

Abstract

The present invention relates to a remediation method of soil contaminated with arsenic. According to the present invention, the remediation method of soil contaminated with arsenic comprises: the collection step of collecting soil contaminated with arsenic; the washing step of injecting a washing solution which provides acidic reducing conditions to soil, into the soil to remove arsenic from the soil and to move the same to the washing solution; the solid-liquid separation step of separating the soil and the washing solution from the washing step; and the post-processing step of removing arsenic from the washing solution separated at the solid-liquid separation step and using the soil in remediation.

IPC Classes  ?

• B09C 1/02 - Extraction using liquids, e.g. washing, leaching
• B09C 1/08 - Reclamation of contaminated soil chemically
• A62D 3/32 - Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by treatment in molten chemical reagent, e.g. salts or metals

Abstract

The present invention relates to an underground gas storage system and to a method for detecting gas outflow from an underground gas storage layer by means of pressure monitoring. The underground gas storage system according to the present invention comprises: a storage layer which is formed of a water-permeable rock material underground on the land or at sea; a stratified geological structure having a water-impermeable covering rock layer which is formed above the storage layer and having an upper water-permeable layer formed of a water-permeable rock material above the covering rock layer; a hollow casing which is inserted on the inside surface of a gas-injection well bored from above ground to the storage layer, and which is drilled with a plurality of gas-injection holes around the circumference in the portion disposed at the same depth as the storage layer; and a pressure sensor which is disposed at the same depth as the upper water-permeable layer and senses the pressure in the upper water-permeable layer. Also, in the method for detecting gas outflow from the underground gas storage layer by means of pressure monitoring according to the present invention, in an underground gas storage system having a configuration such as that above, gas outflow from the storage layer is detected by measuring changes in the pressure in the upper water-permeable layer via the pressure sensor which is provided in the upper water-permeable layer.

IPC Classes  ?

• G01V 9/00 - Prospecting or detecting by methods not provided for in groups
• E21B 47/06 - Measuring temperature or pressure

Abstract

The present invention relates to a method for removing chlorides of municipal solid waste incineration bottom ash, and more particularly to a method for removing chlorides of municipal solid waste incineration bottom ash, including washing soluble chlorides included in bottom ash, and carbonating Friedel's salt. According to the present invention, chlorides of municipal solid waste incineration bottom ash can be effectively removed, thereby resolving problems caused by a large quantity of chlorides included in bottom ash when municipal solid waste incineration bottom ash is recycled as reclamation material or as road pavement material.

IPC Classes  ?

• B09B 3/00 - Destroying solid waste or transforming solid waste into something useful or harmless
• B09B 5/00 - Operations not covered by a single other subclass or by a single other group in this subclass

Abstract

The present invention relates to a calcium aluminate clinker using waste material and a manufacturing method thereof. More specifically, the calcium aluminate clinker is manufactured by mixing at an appropriate ratio asbestos waste, ash of incinerated domestic waste, sludge from purified water, plaster, fluorite and silicon carbide, and then calcinating the mixture to produce an environmentally friendly and low-cost calcium aluminate clinker. According to the present invention, carbon dioxide emissions can be reduced during a process of manufacturing a calcium aluminate clinker by virtue of reduced calcinating temperature and by using waste material and a resultant calcium aluminate clinker is environmentally friendly and has low production cost. Further, quality degradation of a clinker itself due to alkali components can be prevented since alkali components can be neutralized, the asbestos components of harmful asbestos wastes can be removed, and high quality cement having rapid hardening properties, high strength, high liquidity, and high expansibility can be manufactured.

IPC Classes  ?

• C04B 7/48 - Clinker treatment
• C04B 7/38 - Preparing or treating the raw materials individually or as batches
• C04B 7/42 - Active ingredients added before, or during, the burning process
• C04B 7/43 - Heat treatment, e.g. precalcining, burning, meltingCooling
• C04B 18/06 - Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
• C04B 18/18 - Waste materialsRefuse organic

Abstract

The present invention relates to a method for carbon dioxide fixation using municipal solid waste incineration bottom ash and to a method for effective carbon dioxide fixation by preparing a slurry of municipal solid waste incineration bottom ash and then injecting carbonic acid gas to trigger a carbonation reaction. The present invention provides a method for the carbon dioxide fixation of municipal solid waste incineration bottom ash comprising: a municipal solid waste separation process; an incineration bottom ash grinding process; a non-pulverized incineration bottom ash sifting process; a slurry preparation process; a raw material stirring process; and a carbonic acid gas injection process.

IPC Classes  ?

• B01D 53/62 - Carbon oxides
• B09B 3/00 - Destroying solid waste or transforming solid waste into something useful or harmless
• C01B 31/20 - Carbon dioxide

Abstract

The present invention relates to a method for extracting rare earth elements from monazite. The method for extracting rare earth material from monazite according to the present invention comprises: a grinding/converting step of introducing a mixture of phosphoric acid, monazite that contains rare earth elements, and sodium hydroxide into a mill containing a plurality of balls, then colliding the balls and mixture together to grind the mixture into a powder, wherein the mixture is converted to a rare earth hydroxide and sodium phosphate via a reaction that occurs in the process of repeated collision; and an extraction step of extracting rare earth elements from the powder.

IPC Classes  ?

• C22B 59/00 - Obtaining rare earth metals
• B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling

Abstract

The present invention relates to recovery of cobalt and manganese from waste battery materials, and a method for making liquid catalysts from recovered Co-Mn-Br (CMB). More specifically, lithium-ion powder and ternary cathode materials are produced by leaching scrap battery materials with sulfate reduction, and sequential application of the following three process steps: neutralization titration, solid-liquid separation and solvent extraction, leads to recovery of cobalt and manganese as a liquid extract comprised of a Co-Mn-Br catalyst. According to the present invention, a CMB liquid phase catalyst that is useful for application in various manufacturing processes is provided by recovery of cobalt and manganese from waste ternary cathode and lithium-ion battery materials, enhancing the removal of other impurities, and recovering high purity cobalt and manganese.

IPC Classes  ?

• B01J 38/68 - Liquid treating or treating in liquid phase, e.g. dissolved or suspended including substantial dissolution or chemical precipitation of a catalyst component in the ultimate reconstitution of the catalyst
• B01J 38/60 - Liquid treating or treating in liquid phase, e.g. dissolved or suspended using acids
• H01M 10/54 - Reclaiming serviceable parts of waste accumulators

Abstract

The present invention relates to a CO2 solid solution treatment and heavy metal adsorption method using waste concrete, waste cement powder, comprising the steps of: preparing a waste cement powder; forming a solid solution of CO2 on the waste cement powder; and adsorbing heavy metals onto the waste cement powder having the CO2 in solid solution. In this way, a method is provided whereby CO2 is made into a solid solution in stable fashion and heavy metals are adsorbed through the use of waste cement.

IPC Classes  ?

• B01D 53/34 - Chemical or biological purification of waste gases
• B01D 53/62 - Carbon oxides
• C02F 1/28 - Treatment of water, waste water, or sewage by sorption
• C01B 31/20 - Carbon dioxide

Abstract

The present invention provides a method for reforming low rank coal and an apparatus thereof for improving the quality of low rank coal containing a large amount of ash and moisture and for inhibiting spontaneous combustion. The method for reforming low rank coal according to the present invention comprises the pulverization and separation step of pulverizing low rank coal in water by friction and separating fixed carbon, the dehydration step of dehydrating the pulverized fixed carbon, and the volatile matters removal step of removing the volatile matters fixed on the fixed carbon by mutual rubbing of the fixed carbon. In addition, the apparatus for reforming low rank coal according to the present invention comprises: an attrition mill which pulverizes low rank coal through the friction with a plurality of friction balls; and a mill for removing the volatile matters fixed on the fixed carbon by milling the fixed carbon discharged from the attrition mill through the friction with a steel sphere or a steel rod.

IPC Classes  ?

• C10L 9/00 - Treating solid fuels to improve their combustion
• C10B 45/00 - Other details

Abstract

The present invention relates to a lithium recovery device comprising a separator reservoir and manganese oxide, a lithium recovery method using the same, and a lithium adsorption/desorption system. The separator reservoir includes a vacant space therein and an outer wall made of a polymer or a membrane of other useful materials. The manganese oxide is contained, as an adsorbent, in the vacant space inside the separator reservoir. The lithium adsorption/desorption system enables lithium recovery through adsorption and desorption of lithium dissolved in seawater using a lithium adsorbent prepared with the manganese oxide in one system, wherein the manganese oxide can be used as a lithium adsorbent with high lithium selectivity. The invention uses a separator reservoir including an outer wall made of a porous polymer or a membrane of other useful materials. As a result, the invention can be directly applied to seawater by enabling free movement of the solution, especially seawater, without additional pressure from the outside. The invention ensures strong stability in seawater and the acidic solution using a polymer with high chemical resistance and mechanical strength, or other useful materials. Therefor, the invention can be widely used in technical fields requiring lithium recovery.

IPC Classes  ?

• C22B 26/12 - Obtaining lithium
• C22B 3/24 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means by adsorption on solid substances, e.g. by extraction with solid resins

Abstract

The present invention relates to a vertical, autothermal furnace characterised in that it comprises a furnace that tapers with the lower part wider than the upper part and having a spherical, elliptical or polygonal cross section, said furnace being replenished with carbon-containing pellets; a pellet filler opening; a discharger; and an air regulator. The present invention further relates to an autothermal method of manufacturing fired material comprising the steps of filling said vertical autothermal furnace with carbon-containing pellets and preheating, and then continuously loading carbon-containing pellets into said preheated pellet-loaded furnace, and continuously discharging said autothermally fired material produced by the autothermal firing of said carbon-containing pellets from the lower part thereof. The method of manufacturing fired material using said furnace has the economic advantage of enabling the autothermal firing of pellets using only the heat generated during firing without additional heating.

IPC Classes  ?

• C22B 1/16 - SinteringAgglomerating

Abstract

The present invention relates to a measuring device equipped with an acoustic emission sensor. More specifically, it relates to a measuring device equipped with an acoustic emission sensor which, in the event of identical events causing damage to a ground structure, can sense identical acoustic emission signals at an acoustic emission sensor and can collect reliable acoustic emission signals regardless of the ground conditions or form of the ground structure. Additionally, the present invention relates to a method for installing a measuring device equipped with the acoustic emission sensor, and it relates to a set which comprises measuring devices equipped with acoustic emission sensors, which includes the above type of measuring device equipped with an acoustic emission sensor.

IPC Classes  ?

• G01H 17/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the other groups of this subclass

Abstract

The present invention relates to rock mechanics and geo-engineering and concerns a measurement technique which recognizes collapse symptoms using low-decibel sound caused by damage to a ground structure and manages standards for collapse prediction. This collapse prediction method for a ground structure detects low-decibel collapse sounds instead of the conventional displacement or stress measurements.

IPC Classes  ?

• G01V 1/28 - Processing seismic data, e.g. for interpretation or for event detection

Abstract

The present invention relates to a method for recovering valuable metals contained in printed circuit boards of waste electronic machine, and more particularly, to a method for recovering valuable metals from waste printed circuit boards by separating several plastic layers laminated using an organic solution and then separating plastic components from metal components using an electrostatic separation process. According to the present invention, it is possible to separate the non-metal containing the plastic components and the metal components from the waste printed circuit boards by separating the several plastic layers laminated via simple pre-process using an organic solvent and obtain the metal recovery ratio of 99.99% via the pre-process and an electrostatic separation process.

IPC Classes  ?

• H01L 21/306 - Chemical or electrical treatment, e.g. electrolytic etching

Abstract

The present invention relates to a core catcher and a corer having the same, and more particularly, to a core catcher provided with dual blade radial pins for preventing loss of sediments and a corer having the same.

IPC Classes  ?

• E21B 49/02 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil