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WO/2020/252343A1 |
Lead is recovered from lead paste of a lead acid battery in a continuous and electrochemical lead recovery process. In especially preferred aspects, lead paste is processed to remove residual sulfates, and the so treated lead paste is su...
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WO/2020/250989A1 |
This production method comprises: an alkali extraction step (step 12) for obtaining an alkaline leachate by adding an alkali and water or an alkaline solution to raw material ash, which contains ammonium sulfate, sulfuric acid, vanadium,...
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WO/2020/243770A1 |
A process for producing zeolites comprising: a) calcining a clay material to form an amorphous material from clay components in the clay material, b) leaching the material from step (a) in a leaching solution to produce a solution contai...
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WO/2020/245736A1 |
The subject of the invention is a procedure for the recovery of the galvanic layer containing gold and other precious metals, as well as the carrier from electronic components. The base materials of the procedure are primarily electronic...
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WO/2020/246079A1 |
Provided are a system and a method for treating a waste lithium ion battery, by which the recovery rate of lithium can be improved. One example of this system for treating a waste lithium ion battery includes a first aqueous solution pro...
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WO/2020/245652A1 |
The present disclosure is directed to a process for thiosulfate leaching of a precious metal-containing material and recovering a precious metal from a pregnant leach solution using a resin extractant. The precious metal is eluted from t...
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WO/2020/246907A1 |
The group of inventions can be used in preparing iron ore concentrates for metallurgical treatment, for which unacceptable concentrations of phosphorus are generally more than 0.25-0.30%. A method comprises oxidative roasting in a furnac...
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WO/2020/238505A1 |
Provided are an adsorption material based on a crosslinked protein, and an application thereof for recovering precious metals; The adsorbent material is a microparticle formed by a crosslinking agent crosslinking a phase transition prote...
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WO/2020/237312A1 |
The present invention relates to a method for the extraction and recovery of titanium products from a feedstock comprising titanomagnetite species, the method comprising the steps of: i. subjecting the feedstock to a primary leach step c...
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WO/2020/242347A1 |
The invention relates to the chemical and metallurgical industries and can be used for bauxite processing. The technical result of the claimed invention consists in simplifying bauxite processing while increasing the efficiency thereof. ...
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WO/2020/233826A1 |
The invention is directed to a process for stepwise leaching of all rare earth elements capable of forming peroxide and superoxide compounds, in particular cerium, lanthanum, neodymium, europium, from minerals containing these elements, ...
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WO/2020/232505A1 |
A process (10) for the production of manganese sulphate, the process comprising the steps of: (i) Passing a manganese containing ore (12) to a reduction step (14); (ii) Passing a product of the reduction step to a wash (26) in dilute aci...
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WO/2020/236550A1 |
The present disclosure is directed to novel functionalized ionic liquids (ILs) that are used, for example, for enhanced recovery and separation of rare earth elements from aqueous solutions. The liquids and processes disclosed herein lea...
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WO/2020/226522A1 |
The present invention falls within the area of the synthesis of ionic liquids, namely it concerns a process of synthesis of the ionic liquid tetraoctylammonium di(2-ethylhexyl)-oxamate (IL-5) with a high degree of purity and its use in t...
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WO/2020/223812A1 |
The present application provides a process and system for extraction of rare earth elements using a long-term acid soak. In particular the present application provides a process for extracting rare earth elements from an ore by: (a) soak...
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WO/2020/226521A1 |
The present invention falls within the area of the synthesis of ionic liquids, namely it concerns a process of synthesis of the ionic liquid tetraoctylammonium dioctyl-diglycolamate (IL-4) with a high degree of purity and its use in an e...
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WO/2020/222254A1 |
Effective utilization of Jarosite waste A method for recovery of metals from Jarosite waste for its effective utilization wherein, the treatment of nitric acid to jarosite waste extracts the nitrates of lead, cadmium, iron, copper, nicke...
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WO/2020/220147A1 |
The invention relates to a multifunctional copper cementer designed as a vertical tank having a cylindrical or rectangular cross-section, an internal double chamber, a conical bottom and an open top, thereby not accumulating gases. A liq...
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WO/2020/220559A1 |
A recovery method for valuable metals in waste nickel-cobalt-manganese ternary lithium batteries; the method comprises: removing impurities from Fe2+, Al3+, Ca2+ and Mg2+ before extraction so that the purity of valuable metal products re...
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WO/2020/215167A1 |
The invention relates to an irrigation system for leaching, which provides improved environmental isolation, prevents the clogging of drippers owing to sulphation and the loss of heat from the heap, and improves the recovery of evaporate...
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WO/2020/212363A1 |
A process for removal of aluminium and iron in the recycling of rechargeable batteries comprising providing a leachate from black mass, adding phosphoric acid (H3PO4) to said leachate and adjusting the pH to form iron phosphate (FePO4) a...
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WO/2020/214414A1 |
Ether-thioether functionalized porous aromatic framework (RAF) polymers provide high selectivity for iron(ll) and iron(lll) adsorption in aqueous samples. The material described in this invention can be used to remove potentially toxic i...
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WO/2020/211757A1 |
A method for recovering copper from a phosphoric acid extractant-containing solution. The method comprises: mixing a phosphoric acid extractant-containing solution with solvent oil to obtain an oil-water mixture; performing oil-water sep...
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WO/2020/212970A1 |
Methods and systems are provided, which convert spent electrolyte from aluminum- air batteries into high purity alumina (HP A) and useful co-products such as fertilizer(s) and/or feed supplement(s). Aluminum tri-hydroxide (ATH) having po...
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WO/2020/212587A1 |
The invention concerns a process for the recovery of metals such as Ni and Co from a Li-containing starting material. In particular, this process concerns the recovery of metals M from a Li-containing starting material, wherein M compris...
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WO/2020/211304A1 |
A method for grouping and separating yttrium oxide from high-yttrium rare earth ore and a method for grouping and separating yttrium oxide from middle-yttrium europium-rich rare earth ore, relating to the technical field of rare earth ex...
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WO/2020/212546A1 |
The present disclosure concerns the production of precursor compounds for lithium battery cathodes. Batteries or their scrap are smelted in reducing conditions, thereby forming an alloy suitable for further hydrometallurgical refining, a...
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WO/2020/206567A1 |
A process for producing lithium carbonate or other lithium chemical products from spodumene ore concentrates, LiAl(SiO3)2, which comprises: (a) calcining the spodumene concentrate to transform it from its crystalline form α to the cryst...
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WO/2020/206933A1 |
Examples of the present invention relate to the field of gold metallurgy, and in particular, to an environmentally friendly non-cyanide gold extractor, a preparation method and use thereof. The environmentally friendly non-cyanide gold e...
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WO/2020/205302A1 |
A method of extracting purified lithium sulfate brine from sedimentary rock is disclosed. The method includes the steps of sizing sedimentary rock ore, suspending the sized ore in an aqueous solution, and separating the aqueous solution ...
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WO/2020/198778A1 |
A process for recovering a precious metal from a precious metal containing article or composition is disclosed. The process comprises treating the precious metal containing article or composition with an oxidant composition under conditi...
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WO/2020/203888A1 |
This method is for producing lithium carbonate and comprises: a dissolving step for dissolving crude lithium carbonate in a liquid while having carbon dioxide gas supplied therein; and a decarboxylation step for heating the lithium solut...
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WO/2020/203585A1 |
This method is for processing lithium ion battery scrap and comprises: a leaching step for leaching lithium ion battery scrap with an acid to obtain a post-leaching liquid that contains at least fluoride ions and aluminum ions; a neutral...
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WO/2020/197398A1 |
The invention is directed to a process and a system for producing a stock solution for production of a ferrofluid, the process comprising contacting an acidic solution comprising an acid in a reaction container filled with an excess of a...
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WO/2020/196046A1 |
Provided is a method for manufacturing, from a hydroxide, a high purity solution that comprises both cobalt and nickel for which the manufacturing costs are effectively reduced. The method for manufacturing a cobalt and nickel-containi...
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WO/2020/191504A1 |
Pyro-hydrometallurgical methods are described to economically and environmentally recover a target metal from iron slag or steel slag. For instance, the method can enable subjecting an iron or steel slag feed to acid-baking with an acid ...
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WO/2020/181607A1 |
A method for extracting ions from an ore solution, comprising the following steps: (1) after a P204 organic phase is subject to soda soap treatment, adding nickel sulfate therein for a nickel soap reaction, till sodium ions in the organi...
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WO/2020/183261A1 |
The present invention concerns a method for recovering gold from electronic components, comprising the execution of a first macro-step of dissolving gold and copper from said electronic components using an aqueous solution comprising HNO...
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WO/2020/185777A1 |
A process for water removal and/or recycling of sodium sulphate and/or sodium dithionate containing liquors derived from processing a cobalt resource derived from components of lithium ion batteries comprising steps of deriving from the ...
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WO/2020/183728A1 |
Provided is a production method using industrially inexpensive hydrogen gas and microscopic nickel powder to generate coarse particles of nickel powder containing a small amount of impurities from an ammine nickel sulfate complex solutio...
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WO/2020/181745A1 |
Provided is a method for efficiently separating cobalt/nickel magnesium manganese from crude cobalt/nickel salt raw material. Using crude cobalt/nickel salt as a raw material, a catalyst is added after slurrying; a high-temperature and h...
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WO/2020/183469A1 |
A process for recovering gold from a refractory gold ore, comprising the steps of: electrolyzing a mixture consisting of the ore particles and an aqueous bromide solution in an electrolytic cell having anode and cathode, wherein bromine ...
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WO/2020/181381A1 |
The present application provides a process and system for recovery of rare earth elements. In particular, the present application provides a process for obtaining a precipitate of rare earth elements (REE), comprising: (a) obtaining an a...
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WO/2020/181606A1 |
A method for leaching laterite nickel ore. The leaching method comprises the following steps: 1) concentrating an original laterite nickel ore pulp having a particle size of less than 0.074mm into a laterite nickel ore pulp having an und...
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WO/2020/177880A1 |
The invention relates to a method for extracting gold and/or silver and/or at least one platinum metal. At least one starting material (10) which contains gold, silver and/or platinum metal is introduced into an aqueous solution (20) tha...
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WO/2020/173589A1 |
A method for breaking down a mixture, which is present in the form of solid particles, consisting of: (A) 0 to 99% by weight of metallic ruthenium, (B) 0 to 50% by weight of at least one element other than ruthenium, which is present in ...
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WO/2020/174907A1 |
A tungsten recovery method characterized by inducing the leaching of tungsten while suppressing the leaching of silicon from a tungsten raw material containing tungsten oxide and silicon by using a weak alkali compound, wherein the major...
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WO/2020/171994A1 |
Provided herein is a system for producing suspensions comprising soluble metal ions. The system comprises a basket to hold a metal load comprising a permeable floor so as to allow a solution to come into contact with the metal load. The ...
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WO/2020/171009A1 |
Provided is a lithium recovery method whereby highly pure lithium can be recovered from a fluid to be processed that has lithium and an inorganic salt dissolved therein. The lithium recovery method has: a concentration step S8 in which t...
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WO/2020/165845A1 |
A method (1) for pre-treating whole ore and/or concentrate comprising a precious metal for subsequent precious metal recovery involves processing a solids feed (2) in a pre-treatment stage (3) and then in a sulfide oxidation stage (4). T...
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