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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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WO/2022/119501A1 |
The present invention relates to a composition comprising a first weak acid, an oxidant and a metal complexing agent, wherein the composition has a pH in the range of 2 to 4. The present invention also relates to a method of preparing su...
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WO/2022/119921A1 |
A method of extracting lithium from a lithium-bearing material including: (i) mixing the lithium-bearing material, gypsum, a sulfur-containing material, and a calcium-containing material and forming a feed mixture having a moisture conte...
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WO/2022/119565A1 |
A method of extracting lithium from a lithium-bearing material including: (i) mixing the lithium-bearing material, gypsum, a sulfur-containing material, and a calcium-containing material and forming a feed mixture having a predetermined ...
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WO/2022/119564A1 |
A method of forming lithium carbonate from a lithium-bearing solution including: evaporating the lithium-bearing solution to precipitate a first group of impurities; removing the first group of impurities to form a first purified solutio...
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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/2022/117942A1 |
The invention relates to the use of a mixture of quaternary ammonium salts as an extractant for extracting uranium(VI) from an aqueous sulfuric acid solution. It also relates to mixtures of quaternary ammonium salts and to a method enabl...
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WO/2022/120204A1 |
The present disclosure provides an isolated Thiomonas isabelensis (ECOAU001) strain deposited at the Agricultural Research Service Culture Collection under the Accession number NRRL No. B-67995 according to the Budapest Treaty. The discl...
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WO/2022/120251A1 |
Described herein are methods for methods for extracting earth elements from rare earth element sources. In one aspect, the rare earth element source includes clayey materials present in coal and coal by-products, where one or more rare e...
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WO/2022/110821A1 |
Disclosed are a carboxylic acid compound as represented by formula I, a preparation method therefor and the use thereof. When the carboxylic acid compound is used as an extraction agent for the extraction and separation of metal ions, th...
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WO/2022/113025A2 |
Processes are provided in which successive steps of hydrometallurgical value extraction may be carried out using the products of carbon capture and an electrolytic reagent-generating process. The electrolytic process provides an acid lea...
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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/2022/109628A1 |
Systems and methods for plasma treatment to recover precious metals from tailings with enhanced leachability are described.
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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/2022/101549A1 |
The present invention relates to the recovery and purification of lithium from lithium containing sources, like lithium ion battery materials, using ion exchange. A lithium salt containing solution is passed through an acid cation exchan...
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