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WO/2022/208429A1 |
A method of treating a hydrous ore material metal values includes a digestion step in which a solution of ferrous chloride (FeCl2) and a divalent chloride of the at least one other metal (M2+Cl2) is produced by contacting the hydrous ore...
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WO/2022/204766A1 |
A process for the recovery of lithium carbonate from a solution (1) containing a mixture of lithium sulfate and lithium hydroxide, the process comprising the precipitation of lithium carbonate (3) from the solution (1) containing a mixtu...
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WO/2022/205533A1 |
Disclosed in the present invention is a method for preparing low-impurity electrolytic manganese dioxide, comprising: reacting manganese oxide ore powder, pyrite powder, industrial sulfuric acid, and a waste electrolyte; then adding calc...
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WO/2022/205534A1 |
Disclosed in the present invention is a preparation method for electrolytic manganese dioxide for a mercury-free alkaline zinc-manganese battery: first mixing and reacting a portion of electrolytic waste liquid with manganese oxide powde...
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WO/2022/210674A1 |
A separation method according to the present invention comprises: a step for obtaining a mixture by mixing a solvent with a member that comprises an active material and a solid electrolyte; and a step for obtaining a solid component and ...
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WO/2022/210847A1 |
Provided is a lithium-containing solution production method which makes it possible to suppress the costs of lithium production by increasing the lithium content in a solution after an elution step and suppressing the amount of an eluted...
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WO/2022/208015A1 |
The invention relates to a method for dissolving a positive electrode material of a battery comprising a step during which the positive electrode material, comprising lithium and optionally cobalt and/or nickel, is submerged in an acid s...
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WO/2022/208428A1 |
A method of treating a metallic or metal-bearing material includes, in an oxidative or reductive digestion step, contacting the metallic or metal-bearing material with a reagent selected from ferric chloride (FeCl3), hydrochloric acid (H...
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WO/2022/204752A1 |
Disclosed herein is a method for producing iron (II) oxalate from an insoluble iron material, the method comprising digesting the insoluble iron material with a digestion liquor comprising one or more acids, and reacting digested iron sp...
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WO/2022/211648A1 |
The subject of the invention is the device for disposal of lithium batteries that are not suitable for further use. The device for disposal of lithium batteries, where the ground batteries are immersed in tanks with water/acid converting...
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WO/2022/203517A1 |
A method for the treatment of fly ash from incineration processes, said method comprises the following steps: (a) providing a supply of fly ash (7, 11) and water (5, 9) and mix the fly ash with water to provide a fly ash/water slurry (13...
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WO/2022/203055A1 |
The present invention provides a method for producing lithium hydroxide which employs, as a source liquid, a wide variety of aqueous solutions containing lithium and which efficiently produces highly pure lithium hydroxide from the sourc...
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WO/2022/201076A1 |
A method of treating mining effluents containing at least one of nitrogen or cyanide species, the method comprising injecting ozone in the mining effluent in successive treatments performed at different pH. Also, a method of treating min...
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WO/2022/202738A1 |
Provided are a noble metal adsorbent which enables easy recovery of a noble metal while achieving a high adsorption capacity with respect to a noble metal, a noble metal recovery method, and a noble metal adsorbent recycling method. A ...
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WO/2022/204265A1 |
The present disclosure provides for a method of obtaining metals from a source, including contacting the source with an ionic liquid in the absence of acid, thereby extracting the metals from the source and providing an ionic liquid extr...
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WO/2022/194423A1 |
A method (1) is proposed for obtaining lithium carbonate from an aqueous salt solution (2), containing at least lithium ions, chloride ions and calcium ions, where the aqueous salt solution (2) with a lithium content of at least 0.005% b...
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WO/2022/192963A1 |
The present invention provides a method of producing core-shell polymer microbeads, the method comprising: (a) providing a core solution containing one or more water insoluble polymers in a water-soluble solvent; (b) providing a shell so...
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WO/2022/196197A1 |
[Problem] The purpose of the present invention is to provide a treatment for safely and efficiently liquefying niobium and tantalum from a smelting raw material containing niobium and tantalum, or a method for liquefying niobium and tant...
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WO/2022/188248A1 |
The present invention relates to the technical field of eudialyte beneficiation. Disclosed is a method for recovering rare earth from eudialyte, comprising the following steps: S1, crushing and screening raw ore to obtain ore to be separ...
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WO/2022/190153A1 |
The present invention concerns a method for the treatment of jarosite and other residues (1) of the zinc and lead production industry, including the following steps: thermal treatment (10) of the residues (1), at a temperature between 50...
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WO/2022/187893A1 |
Copper metal is produced from copper containing ammonia - ammonium chloride liquor by precipitating copper containing crystals which are subsequently reduced to copper metal using hydrogen containing gas with the source of the copper in ...
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WO/2022/191290A1 |
inorganic solution that is less likely to be dissolved in both a basic solution and an acidic solution and has high energy efficiency, the method (method M10 for producing a BeCl2 solution) comprises a heating step (S13) for dielectrical...
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WO/2022/185862A1 |
Provided are a platinum-group metal recovery agent represented by general formula (1) and a platinum-group metal recovery method in which the platinum-group metal recovery agent is used to recover platinum or rhodium from a hydrochloric ...
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WO/2022/183285A1 |
A method of precipitating copper sulphide from an incoming feed stream comprising copper liberated from within battery materials can includes the steps of: a) receiving an incoming feed stream comprising copper entrained in a carrier liq...
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WO/2022/184525A1 |
The present invention relates to a species of genus Pseudomonas identified as Pseudomonas BR87641, termed Candidatus Pseudomonas pretiosorbens, having Accession Deposit Number DSM 33684.
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WO/2022/184688A1 |
It is described a method of processing an etching waste medium from circuit board and/or substrate manufacture, the method comprising: i) providing a medium to be processed (11), being the etching waste medium, in particular from an etch...
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WO/2022/185974A1 |
Provided is a method for recovering manganese from a waste dry battery, whereby it becomes possible to recover a high-purity manganese-containing solution in a simple manner. The present invention includes the following steps in this ord...
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WO/2022/183243A1 |
The present invention relates, inter alia, to a method of producing a co-precipitate comprising nickel, manganese and/or cobalt, and to a co-precipitate produced by the method. The method may be a method of producing a co-precipitate com...
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WO/2022/179969A1 |
The invention relates to a process for isolating a hydrochloric, aqueous FeCl3 solution from an aqueous multi-component system.
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WO/2022/179291A1 |
Disclosed in the present invention are a method for separating ferronickel from a lateritic nickel ore leach solution and preparing iron phosphate, and an application. The method comprises: adjusting the pH of a lateritic nickel ore leac...
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WO/2022/182599A1 |
Provided are modified bacteria for use in bioleaching rare earth elements (REEs). The modified bacteria contain at least one engineered genetic change that is correlated with improved bioleaching of the REEs, relative to REE bioleaching ...
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WO/2022/178628A1 |
A hydrometallurgical method for recovering nickel, cobalt and copper from a feed comprising copper-containing sulphide concentrate and nickel laterite ore comprises the steps of: (1) pressure leaching the feed with oxygen introduction to...
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WO/2022/176712A1 |
A Li recovery method comprises: an acid leaching step for producing a leachate solution by the addition of acid to a battery slag that contains an Li fraction; a first addition step for adding a Ca fraction to the leachate solution to pr...
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WO/2022/176709A1 |
The present invention has an acid leaching step S4 for adding acid S to battery slag M extracted from a lithium ion cell to form a leachate E, a fourth addition step S11 for adding sodium carbonate A4 to a third treated filtrate F3 that ...
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WO/2022/178235A1 |
A method of delamination of a printed circuit board includes comminuting (202) the printed circuit board, and soaking (204) the comminuted PCB in a solvent system comprising at least two solvents. Once soaking (204) has been completed th...
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WO/2022/170399A1 |
A method for the recovery of metals from a feed stream (1) containing one or more value metals, the method comprising: (i) passing the feed stream (1) to an alkaline leach (20) to form a slurry (5) including a pregnant leach liquor of so...
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WO/2022/173335A1 |
A method for recovering gold from a solution containing impurities of platinum metals and non-precious metals relates to the hydrometallurgy of precious metals and can be used for obtaining gold in metal form. The technical result is ach...
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WO/2022/173321A1 |
The proposed invention relates to the field of the hydrometallurgy of precious metals and can be used in processes for treating different types of concentrates containing precious metals, in particular ruthenium in the form of potassium ...
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WO/2022/167167A1 |
The invention relates to a method for reductive extraction of elemental noble metals from an acidic aqueous solution containing noble metal, the method comprising the addition of non-noble metal including zinc and/or tin to the acidic aq...
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WO/2022/166023A1 |
A method for resource recycling of a nickel-iron alloy and use thereof. The method comprises the following steps: (1) ball-milling, pulverizing, and sieving a nickel-iron alloy to obtain a nickel-iron alloy powder; (2) leaching the nicke...
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WO/2022/167662A1 |
The present invention relates to a process for producing a cathode active material precursor having a desired active material target ratio for use in a lithium-ion secondary cell or in the production of a lithium-ion secondary cell.
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WO/2022/168805A1 |
The present invention has: a heating step (S3) for heating a battery slag (M1) having a positive-electrode active material that includes one or both of Ni and Co and a negative-electrode active material that includes graphite, and thereb...
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WO/2022/168015A1 |
According to one aspect of the invention, there is provided a plant layout for extracting fine chrome from a PGM tails stream, typically after the PGM tails stream has undergone a desliming process to yield a fine fraction mineral slurry...
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WO/2022/165509A1 |
Described herein are technologies for bauxite or kaolin mining operations. A detector is used to detect the presence of a pathfinder element or radioactivity indicating a presence of a rare-earth element. Once the pathfinder element or r...
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WO/2022/162252A1 |
The present method relates to a method for biological recovery of metals from electrical and electronic waste, comprising: a) inoculating a series of aerobic iron-oxidising microorganisms and a mineral medium or fertilisers into a column...
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WO/2022/160493A1 |
The present invention belongs to the field of nonferrous metallurgy. Disclosed are a recovery method and the use of a crude ferro-nickel alloy. The recovery method comprises the following steps: crushing and ball-milling crude ferro-nick...
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WO/2022/161087A1 |
The present invention belongs to the field of hydrometallurgy. Disclosed are a method for separating nickel and iron from a nickel-iron alloy and use. The method comprises the following steps: dissolving a nickel-iron alloy in an acid so...
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WO/2022/159785A1 |
A process of leaching a metal or salt thereof from a feed source includes combining an indifferent salt to a leach system to increase efficiency of the leach process as well as the subsequent leach residue liquid-solids separation. The p...
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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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