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WO/2022/010161A1 |
Provided is a method for recovering an active material from a positive electrode scrap and reusing the active material. A method for reusing a positive electrode active material of the present invention comprises the steps of: (a) heat-t...
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WO/2022/009742A1 |
The purpose of the present invention is to provide a method whereby an oxygen partial pressure required for the melting of a raw material can be controlled accurately and thereby a valuable metal can be recovered more efficiently. Prov...
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WO/2022/010975A1 |
A process for recovering a nickel cobalt manganese hydroxide from recycled lithium-ion battery (LIB) material, such as black mass, black powder, filter cake, or the like. The recycled LIB material is mixed with water and either sulfuric ...
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WO/2022/007980A1 |
A combination waste light emitting diode packaging material pyrolysis treatment and a method of recovery of rare earth elements from phosphor powder. On the basis of the pyrolysis characteristics of organic macromolecular compounds, pyro...
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WO/2022/003694A1 |
This invention is directed to methods for recovery of at least one rare earth metal from ferromagnetic alloy, including a chlorination of the rare earth metal following by separation of the chlorinated product.
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WO/2022/003747A1 |
Described is a process for the simultaneous treatment of residues of the non-ferrous metallurgical industry, in particular Waelz slag and residues deriving from thermal fuming processes of jarosite, goethite or KSS slag, comprising the f...
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WO/2022/002845A1 |
It is described a method of separating a non-hydraulic phase (110) from a hydraulic phase (120) in a recyclable industry product (100), the method comprising: i) providing the recyclable industry product (100), wherein the hydraulic phas...
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WO/2022/004981A1 |
Provided is a method for recovering and reusing an active material from a positive electrode scrap. The method for reusing a positive electrode active material of the present invention comprises the steps of: (a) thermally decomposing a ...
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WO/2022/001103A1 |
A method for pyroenrichment of platinum-group metal (PGMs) in an aluminum-based waste catalyst. A CaO-Al203-Fe203-B203 slag system is used, and high-efficiency enrichment of a platinum-group metal is implemented by means of slag iron sep...
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WO/2022/001351A1 |
Disclosed is a method for recovering a hydrogen fuel cell of a new energy vehicle. The method comprises the following steps: (1) sequentially discharging and disassembling the hydrogen fuel cell to obtain a hydrogen supply system, an air...
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WO/2022/000830A1 |
A method and device for recycling a cobalt metal in a lithium-ion battery waste. The recycling method comprises the following steps: step one, mixing a solid waste with an alkali metal solution, fully reacting the mixture, and chelating ...
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WO/2021/261697A1 |
A method for recovering an active material from cathode scrap and reusing same is provided. A cathode active material reuse method of the present invention comprises the steps of: (a) heat treating, in the air, cathode scrap comprising a...
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WO/2021/254022A1 |
Disclosed is a pretreatment apparatus for neodymium-iron-boron waste before calcination, which apparatus mainly solves the problem of the calcination efficiency being affected due to insufficient calcination of existing neodymium-iron-bo...
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WO/2021/253111A1 |
A method and system of recycling aluminum alloy wheels, the method and system comprising (a) providing a feed of aluminum alloy wheels of a particular alloy; (b) fragmenting the aluminum alloy wheels into a plurality of fragments (c) sho...
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WO/2021/255062A1 |
The present disclosure provides improved methods for the removal of heavy metals, in particular cadmium, from an aqueous phosphoric acid containing composition, wherein an ionic polymeric flocculating agent is added to a phosphoric acid ...
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WO/2021/255096A1 |
The present disclosure discloses a method for converting a solid hazardous heavy metal-containing composition into a solid non-hazardous heavy metal-containing composition and an aqueous composition essentially free of heavy metal. The m...
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WO/2021/255065A1 |
The present disclosure provides improved methods for the removal of heavy metals, in particular cadmium, from an aqueous phosphoric acid containing composition, using an organothiophosphorous heavy metal precipitating agent to said compo...
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WO/2021/255562A1 |
A method for recovery of precious metals from copper anode slime (CAS) may include leaching a leach liquor out of the CAS by mixing the CAS with a mixture of nitric acid and sulfuric acid, separating silver from the leach liquor by formi...
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WO/2021/252476A1 |
Systems and methods are provided that remove calcium and/or magnesium from lithium-rich brines using industrial waste that includes calcium oxide or calcium hydroxide (such as steel slag). Surprisingly, calcium and magnesium can be selec...
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WO/2021/246340A1 |
A method according to the present invention is for recovering a platinum group metal present within a film formation chamber after introducing a feedstock gas containing the platinum group metal into the film formation chamber and formin...
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WO/2021/246606A1 |
Provided is a method for reusing an active material by recovering same from positive electrode scrap. A method for reusing a positive electrode active material according to the present invention comprises the steps of: (a-1) immersing po...
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WO/2021/241819A1 |
Provided is a method for recovering and reusing an active material from cathode scrap. A method for reusing a cathode active material according to the present invention comprises the steps of: (a) heat-treating, in air, a cathode scrap c...
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WO/2021/241944A1 |
The present invention relates to a method for recovering a valuable metal and, more specifically, to a method for recovering a valuable metal from a waste electrode material of a lithium secondary battery by using lithium carbonate. The ...
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WO/2021/238738A1 |
Disclosed are applications of a carboxylic compound serving as an extracting agent and a metal ion extraction method. The carboxylic compound is provided with the structure as represented by formula I. The extracting agent as represented...
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WO/2021/241817A1 |
Provided is a method for recovering and reusing an active material from a positive electrode scrap. A method for reusing a positive electrode active material according to the present invention includes: (a) a step in which a positive ele...
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WO/2021/241835A1 |
A method for recovering and reusing an active material from a positive electrode scrap is provided. The method for reusing a positive electrode active material of the present invention comprises the steps of: (a) heat-treating, in air, a...
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WO/2021/241818A1 |
Provided is a method for reusing an active material by recovering the active material from a cathode scrap. A method for reusing a cathode active material according to the present invention comprises the steps of: (a) thermally treating ...
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WO/2021/235008A1 |
[Problem] The present invention provides a method and an apparatus for melting aluminum cutting chips, in which the cutting chips that are dusts produced by cutting metal aluminum or an aluminum alloy are melted to produce an aluminum me...
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WO/2021/235588A1 |
A high-output vanadium redox flow battery stack evaluation system according to one embodiment of the present invention comprises a vanadium redox flow battery stack, and a vanadium redox flow battery stack evaluation device. The vanadium...
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WO/2021/226719A1 |
A green chemistry hydrometallurgical process for recovering one or more metals from a metal-containing material includes leaching the metal-containing material with formic acid, obtaining a leachate comprising the one or more metals as o...
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WO/2021/224805A1 |
The invention relates to a plant (100; 310) and process for the recovery of mixtures of plastics, in particular mixtures of light plastics (16, 32) and optionally of heavy plastics (24, 32) from ASR separation plants (10), wherein these ...
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WO/2021/225930A1 |
A method, a system, and an apparatus for preparing manganese sulfate are provided. The method comprises introducing materials comprising a first stream, a second stream, and a reductant to a reactor to form a mixture. The first stream co...
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WO/2021/222585A2 |
Disclosed herein are methods of using reactor outputs to purify materials. For example, methods of using acid and/or base produced in a reactor to purify materials (e.g., limestone, dolomite, waste streams, and/or ash) are described here...
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WO/2021/219935A1 |
The present application provides a method for recovering metal from metal- containing material by leaching, the method comprising providing aqueous solution containing leaching agent precursor, providing one or more source(s) of external...
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WO/2021/215521A1 |
A method for producing a mixed metal salt that contains a manganese ion, and a cobalt ion and/or a nickel ion, said method comprising: an Al removal step wherein aluminum ions are removed from an acidic solution, which is obtained by sub...
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WO/2021/215484A1 |
The present invention pertains to a method for recovering a rare metal salt, the method comprising: an acid treatment step for obtaining a rare metal-containing acidic aqueous solution by putting a material containing monovalent and poly...
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WO/2021/215486A1 |
The present invention provides a method for producing lithium hydroxide, said method enabling the production of lithium hydroxide from lithium sulfate at a relatively low cost. A method for producing lithium hydroxide from lithium sulfat...
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WO/2021/212936A1 |
The present invention relates to a method for recovering a precious metal from a precious metal-containing waste catalyst, comprising the following steps: (i) at least partially dissolving a precious metal-containing waste catalyst in an...
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WO/2021/215520A1 |
A method for producing a metal mixture solution which contains manganese ions, and cobalt ions and/or nickel ions, said method comprising: an Al removal step wherein aluminum ions are removed from an acidic solution, which is obtained by...
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WO/2021/214784A1 |
Disclosed are systems and methods to produce magnetite from red mud using two-stage reactors (102-N). Each two-stage reactor (102-N) includes a lower section (104) and an upper section (106), which includes an electric furnace (110). The...
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WO/2021/208357A1 |
A system and method for efficient recovery of valuable metals from tin secondary raw materials. The system comprises a batching system (1), a rotary smelting furnace (4), a vacuum furnace (5), a fuming furnace (6) and a flue gas processi...
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WO/2021/208450A1 |
A zinc recovery method and device for a blast furnace or a shaft furnace. The zinc recovery device comprises a flue gas extraction annular flue (1), a flue gas extraction pipe (2), a flue gas extraction duct (4), a heat exchanger (6), a ...
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WO/2021/208437A1 |
A converter gas flue gas conditioning system and a flue gas conditioning method thereof, relating to the technical field of converter gas dust removal systems, comprising a water inlet pipe (10) and a nitrogen pipe (11). Nitrogen and wat...
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WO/2021/205903A1 |
The purpose is to provide a method for recovering a valuable metal at low cost. The present invention is a method for recovering a valuable metal, the method comprising a step of preparing a burden material containing at least a valuab...
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WO/2021/198977A1 |
The plant (1) for the treatment and recovery of white slag resulting from steelmaking processes, comprises: at least one basic frame (2); at least one work chamber (3), movable in rotation around a relevant axis (A) and configured to rec...
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WO/2021/193096A1 |
Provided is an alloy treatment method comprising separating copper and zinc from an alloy containing nickel and/or cobalt and also containing copper and zinc to obtain nickel and/or cobalt selectively. An alloy treatment method is prov...
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WO/2021/189133A1 |
Apparatus for converting Spent Pot Lining (SPL) into inert slag, aluminum fluoride and energy includes a plasma arc furnace such that the destruction of SPL occurs therein. The furnace generates an electric arc within the waste, which ar...
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WO/2021/193095A1 |
The present invention provides a method for treating an alloy, wherein nickel and/or cobalt is obtained by separating copper and zinc from an alloy that contains copper, zinc, and nickel and/or cobalt. The present invention is a method...
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WO/2021/186113A1 |
The present invention relates to a method for treating a spent catalyst containing at least one refractory mineral oxide, one or more metals in the form of sulphide(s) chosen from the following metals: molybdenum, nickel, cobalt, tungste...
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WO/2021/182451A1 |
The present invention provides a method for recovering a valuable substance, by said method a valuable substance being recovered from a lithium ion secondary battery. This method for recovering a valuable substance comprises: a heat trea...
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