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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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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/2022/140863A1 |
Processes and methods for refining ferronickel alloy, and producing nickel sulfate or other nickel product, are provided, where the ferronickel alloy is treated with an oxidizing leach. The oxidizing leach may be, for example, a pressure...
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WO/2022/147291A2 |
Hydrometallurgical solvent extraction processes for recovering value metal ion species such as any of manganese, cobalt, nickel, and/or lithium from solutions derived from recycled electronics and/or batteries and containing mixed-metal ...
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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/2022/140770A1 |
Disclosed herein are compositions, methods, and systems for supramolecular gold stripping where the composition comprises a surface-bound, linear gold anion and a solution comprising a molecular receptor that facilitates the transfer of ...
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WO/2022/134221A1 |
Disclosed in the present invention are a preparation method for a porous spinning composite material, and an application thereof in lithium extraction. The method comprises the following steps: (1) mixing a high molecular polymer with an...
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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/2022/138239A1 |
Provided is a method with which it is possible, when manufacturing an ore slurry containing a metal ore such as nickel oxide ore as a raw material, to obtain an ore slurry in which the solid content and the slurry density are raised with...
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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/2022/136316A1 |
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/2022/130203A1 |
The present disclosure relates to a method for recovering rare earth elements from aqueous media containing these elements, using materials derived from natural products, in particular nutshells. The granulometry of the biosorbent materi...
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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/2022/126217A2 |
This invention refers to a technically and economically viable process for recovery of relevant metallic and non-metallic contents from mining residues, particularly the bauxite residue, using it in its integral form. Such a process rout...
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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/2022/133458A1 |
A method of recovering lithium from a lithium-containing material comprises introducing a lithium-containing material to an electrochemical cell, transporting lithium ions from the lithium‑containing material through a cation exchange ...
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WO/2022/125883A1 |
Bauxite residue recovery includes mixing a solution of hydrochloric acid (HCL) according to a predetermined concentration, and adding the HCL solution to a quantity of raw red mud recovered from industrial operations as waste material. T...
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WO/2022/125872A1 |
The present disclosure is related to the recovery of metal(s) using molten salt and related systems.
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WO/2022/125547A1 |
Methods of recovering precious metals and/or lithium from unconventional feed water sources. In approaches, the methods use a combination of one or more of ultrafiltration, nanofiltration, and/or reverse osmosis membranes. The unconventi...
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WO/2022/118743A1 |
Provided is a method for preparing a nickel oxide ore slurry with which it is possible to wet-sift a nickel oxide ore to efficiently separate an ore slurry collected on the minus-sieve side by sedimentation. The present invention is a ...
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WO/2022/117948A1 |
The invention relates to a method for recovering rare earth metals and uranium(VI) present in an aqueous phosphoric acid solution by liquid-liquid extraction that enables not only highly efficient co-extraction of the rare earth metals a...
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