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WO/2022/163179A1 |
Provided is a method with which it is possible to inexpensively recover a valuable metal. The present invention is a method for recovering a valuable metal, the method including the following steps: a readying step for readying a charg...
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WO/2022/163219A1 |
Proposed is a method for refining molten iron which prevents non-melted remaining portions of a cold iron source even when there is a high cold iron source ratio. In this method, when refinement processing of molten iron is to be perform...
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WO/2022/156076A1 |
A method for producing aluminum oxide using a slag metallurgy technology, relating to the field of comprehensive utilization of aluminum-containing mineral resources, slag metallurgy, and aluminum oxide production. The method comprises: ...
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WO/2022/158441A1 |
Provided is a waste lithium-ion battery treatment method capable of obtaining battery powder without the need to treat fluorine generated by pyrolysis. The present invention is characterized in that a waste lithium-ion battery is heat-tr...
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WO/2022/154250A1 |
One embodiment of the present invention provides a method for collecting calcium and a rare earth metal from slag, comprising: a step (S100) for forming alkali silicate by performing alkali fusion to slag comprising silicon (Si), calcium...
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WO/2022/153231A1 |
System for slag processing comprising a Grizzly feeder (1) adapted to separate a slag fraction of less than 60 mm, a special crusher (4) adapted to crush a slag sub-fraction of 30 to 60 mm, a centrifugal crusher (11) adapted to crush a s...
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WO/2022/154316A1 |
A method for recovering transition metals from a lithium secondary battery, of the present invention, comprises the steps of: preparing a cathode active material from a cathode of a lithium secondary battery; generating a first leachate ...
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WO/2022/150515A1 |
A method for separating and recovering materials from an electrochemical cell by dissolution in multiple solvents, separation of dissolved constituents, and recovery of materials.
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WO/2022/149535A1 |
An embodiment of the present invention relates to a 226Ra recovery method, the 226Ra recovery method including a step (A1) in which a 226Ra-containing substance that is in a solid state and a carrier that has the function of adsorping 22...
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WO/2022/140865A1 |
Provided are systems and methods for propulsion and powering systems using recyclable metallic fuels. The method includes capturing fuel products, including a metal oxide and unburnt fuel from combustion of a metallic fuel, storing the u...
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WO/2022/141011A1 |
A method for cumulative recovery of rhenium, sulfur, and arsenic via vortex furnace self-heated volatilization of rhenium-containing sulfur-arsenic acid sludge, where a rhenium-containing sulfur-arsenic acid sludge raw material is dried ...
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WO/2022/139310A1 |
In a method for recovering an active metal of a lithium secondary battery, positive electrode active material particles including a lithium-transition metal oxide is prepared. The positive active material particles are treated by reducti...
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WO/2022/134749A1 |
A method for recovering lithium in lithium iron phosphate waste and an application thereof. The method comprises the following steps: (1) adding water into lithium iron phosphate waste for slurry making to obtain a lithium iron phosphate...
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WO/2022/137585A1 |
A method for recovering lead from copper smelting dust according to the present invention comprises: an alkali leaching step for leaching, with an alkali solution, lead which is contained in copper smelting dust; a step for solid-liquid ...
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WO/2022/138982A1 |
In a positive electrode for electrolytic plating, a titanium-iridium laminate is used. Therefore, it is desired to recovery a resource after disposal. However, these substances are extremely stable. Therefore, it is not easy to separate ...
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WO/2022/133585A1 |
Methods for recycling lithium and iron containing material, such as batteries, include selectively leaching lithium from the material by disposing the material in a powder form in a solution comprising formic acid and hydrogen peroxide, ...
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WO/2022/134467A1 |
Disclosed is a method for treating a waste circuit board by means of a continuous copper smelting process. The method comprises the following steps: (1) pre-treating a waste circuit board; (2) batching and conveying; (3) side-blowing sme...
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WO/2022/136316A1 |
This method for processing waste containing metal compounds, in particular waste electrical and electronic equipment, comprises the following steps: - providing a gaseous mixture (MG) comprising ammonium and hydrogen sulphide, and option...
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WO/2022/140461A1 |
A method for recovering the valuable materials from energy storage devices (e.g., spent rechargeable lithium batteries, especially those batteries using nickel-based or nickel and cobalt containing cathode materials) are described. In pa...
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WO/2022/128491A1 |
The present invention relates to a method for producing a recycled catalyst comprising at least one group VIB metal M1 and/or at least one group VIII metal M2, optionally phosphorus and/or sulphur, and a carrier based on oxide(s). The me...
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WO/2022/127117A1 |
Disclosed in the present invention is a low-cost method for cleanly treating a positive electrode material of a waste lithium ion battery. The method comprises: performing high-temperature reduction on the pre-treated positive electrode ...
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WO/2022/127316A1 |
An aluminum-based lithium ion sieve, a preparation method therefor and the use thereof. The aluminum-based lithium ion sieve is AI(OH)3-coated Li2SO4·2AI(OH)3·nH2O, wherein n is 1-4. The preparation method comprises: using a reaction b...
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WO/2022/130793A1 |
The present invention provides a method for processing lithium ion battery waste, said method being capable of effectively precipitating aluminum ions and iron ions in a liquid by means of neutralization and being capable of relatively e...
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WO/2022/130316A1 |
An apparatus for processing chemically exposed particulate solids, such as incineration dusts, abrasion dusts, steelworks dusts, sewage sludge, animal meal, shredder light fraction, battery scrap and the like, comprises a housing within ...
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WO/2022/122022A1 |
A method for preparing silicon carbide from a waste circuit board light panel cracking residue, belonging to the field of comprehensive utilization of waste circuit board cracking products, and particularly relating to a new method for h...
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WO/2022/123438A1 |
The present invention discloses a process for recovering precious metals from electronic waste comprising the steps of cutting the terminals from the electronic waste involving metallic and non-metallic fractions using a mechanical proce...
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WO/2022/123444A1 |
The invention relates to a process for the treatment of photovoltaic panels at the end of their life and has the aim of recovering plastics and especially high-purity glass, to put them back on the market as secondary raw materials. The ...
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WO/2022/123586A1 |
5 "A process for neutralization of spent catalyst" The present invention provides a process for neutralization of spent catalyst more particularly neutralizing the spent Ziegler Natta catalyst 10 used in Butene-1 production process in pl...
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WO/2022/119063A1 |
A method for recycling HSS processing process waste comprises: a pre-treatment step of pre-treating the HSS processing process waste; a primary melting step of forming a primary melt by primarily melting, at a temperature of 1500-2500 de...
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WO/2022/117585A1 |
The present invention relates to a method for the pyrometallurgical smelting of metal-containing raw materials, waste materials and/or secondary waste materials (M), said materials being fed in comminuted form to a smelting unit (1) whic...
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WO/2022/116859A1 |
The present invention relates to a method for separating and extracting rare earth and regenerated rare earth polishing powder from waste rare earth polishing powder. The method is characterized by comprising: first using a primary acid ...
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WO/2022/117466A1 |
The invention relates to a method for the recovery of aluminium from aluminium scrap with adhering organic deposits in a multichamber melting furnace (1), at least comprising the following method steps: - batchwise charging of the hearth...
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WO/2022/118187A1 |
Cooling apparatus (1), for cooling a material, in particular for cooling white and / or black slag and / or the residue that forms at the bottom of a ladle furnace, characterized in that it comprises: - at least one reactor (2), with tub...
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WO/2022/118927A1 |
A zinc production method, according to the present invention, further comprises chlorine concentration adjustment steps 101, 101', and 105 for using a hydroxylated alkaline aqueous solution as an extraction solvent for selectively extrac...
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WO/2022/116870A1 |
The present invention relates to a method for recovering rare earths from waste cerium-based rare-earth polishing powder by two-step acid leaching stepwise separation, characterized by: first using primary acid leaching to treat a waste ...
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WO/2022/111266A1 |
Provided is an impurity removal and treatment method in a recovery process of a scrapped positive electrode material of a lithium battery: comprising: at a first temperature higher than a room temperature and a fixed first pH value, cont...
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WO/2022/110822A1 |
A method for separating copper and manganese, comprising the following steps: (1) performing first extraction on a copper-manganese liquid to obtain a first organic phase and a first aqueous phase, wherein an extraction agent A used in t...
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WO/2022/112657A1 |
Described here is a method for recovering stainless steel from stainless steel slag, wherein the method comprises providing stainless steel slag, subjecting the stainless steel slag to dry milling followed by classifying the milled stain...
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WO/2022/114377A1 |
The present invention relates to titanium deoxidation method and deoxidation apparatus, and the titanium deoxidation method according to the present invention comprises: a charging step of placing a titanium raw material, which is compos...
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WO/2022/104427A1 |
A process for recovery of one or more target metals, selected from precious metals and chalcophile metals as respectively herein defined, from materials containing precious and/or chalcophile metal/s, said process including: (i) leaching...
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WO/2022/106660A1 |
A process for extracting fluoride from a solution of high pH comprising more than 0.1 mol of alkaline hydroxide and/or alcoholate per liter dissolved in a polar solvent is described. The polar solvent is chosen from water, lower alcohols...
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WO/2022/102177A1 |
[Problem] To provide a melt mixing system that: makes it possible to suppress generation of oxides during a step for mixing together a first melt obtained by melting a first melt material and a second melt obtained by melting a second me...
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WO/2022/097715A1 |
The present invention provides a method by which high-purity lithium hydroxide is efficiently produced with less energy, wherein only Li ions are recovered into a recovery liquid, with use of an Li permselective membrane, from a lithium ...
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WO/2022/096223A1 |
The invention relates to a method for processing hard metal, more particularly hard metal scrap, wherein: - the hard metal is alloyed with a low-melting alloying metal in a reaction chamber of a reactor (10) while heat is applied; - the ...
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WO/2022/092374A1 |
The present invention relates to a method for isolating cobalt, nickel and copper, which are contained in a waste lithium ion battery, by means of selective leaching. The method according to the present invention is a leaching method for...
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WO/2022/088641A1 |
The present invention relates to the technical field of resource recovery, and discloses a non-full extraction battery recovery method, comprising the following steps: introducing pre-treatment gas into a device containing waste battery ...
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WO/2022/091801A1 |
The present invention is a method for collecting a heavy rare earth element from a heavy rare earth element-containing molten salt electrolysis residue and recycling the same, wherein said method comprises: a step for executing a fluorin...
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WO/2022/089203A1 |
An extraction method for removing aluminum from a leaching solution of a ternary battery material, comprising the following steps: (1) saponification: mixing an extraction solvent and a saponifier together to obtain a saponified extracti...
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WO/2022/085222A1 |
A method for recovering lithium, wherein after obtaining a molten metal that contains a valuable metal and a molten slag that contains at least aluminum and lithium by melting a lithium ion secondary battery to be discarded, lithium is r...
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WO/2022/082258A1 |
A process for treating a material to remove sulphates or other impurities therefrom comprises a) subjecting the material to a leaching step to selectively dissolve sulphate-containing material or dissolve other impurities from the materi...
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