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WO/2022/049239A1 |
The present invention relates to a process of releasing metallics, metalloids and/or non-metallics and/or degradating organics by bioleaching out of a carrier material, such as minerals, rocks, wastes, soil, and sediments. Furthermore, t...
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WO/2022/048307A1 |
A method for recycling nickel, cobalt and manganese from a feed liquid containing nickel, cobalt and manganese, the method comprising: (1) subjecting the feed liquid to a first extraction to obtain an aqueous phase 1 and an organic phase...
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WO/2022/044934A1 |
Provided are: an alloy powder in which nickel and cobalt can be easily dissolved in an acid and stably leached with an acid; a manufacturing method with which an alloy powder that enables stable acid leaching can be obtained at low cost;...
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WO/2022/045973A1 |
A method of treating a leaching solution derived from a black mass from spent lithium-ion batteries comprising setting pH of the leaching solution to about pH 1.2 to 2.5, adding iron powder to induce copper cementation, adding lime after...
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WO/2022/039112A1 |
These absorbent particles include a carrier particle which comprises an organic polymer that includes monomer units derived from a styrene-base monomer, an organic compound which is attached to the surface of the carrier particle and whi...
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WO/2022/040630A1 |
A method of recovering lithium from an aqueous source is described. Lithium is extracted from the aqueous source using a sorption/desorption process to form a lithium extract. Impurities are removed from the lithium extract to form a pur...
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WO/2022/037404A1 |
Disclosed is a method for producing a battery-grade nickel sulfate by means of laterite nickel ore. The method comprises the following steps: a laterite nickel ore is sorted to obtain a lump ore and a mud and sand ore; the lump ore is cr...
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WO/2022/039039A1 |
Provided is a method for treating sulfide suitable for obtaining nickel and/or cobalt from sulfide containing copper and nickel and/or cobalt. A method for treating sulfide containing copper and nickel and/or cobalt, the method compris...
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WO/2022/036775A1 |
A method for recycling multiple valuable metals from lateritic nickel ore and regeneration cycle of an acid-alkali double medium, comprising: first, finely grinding raw lateritic nickel ores to obtain ore powder, configuring the ore powd...
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WO/2022/038530A1 |
The present invention relates to the recovery of high value metals such as gold and silver from the ores containing them, by means of the leaching process which is carried out in tanks or reactors, and to the destruction of cyanide, whic...
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WO/2022/033041A1 |
The present invention provides an extraction method for ion-adsorbed rare earths. The extraction method comprises the following steps: S1, using calcium chloride solution as a leaching agent to perform leaching on ion-adsorbed rare earth...
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WO/2022/029531A1 |
The present disclosure relates to a process for obtaining metallic lead from its compounds present in an end-of-life lead-acid battery through a direct solid-solid reaction with metallic zinc, characterized in that it comprises: a) dry m...
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WO/2022/028899A1 |
The invention relates to a method for extracting gold and/or silver and/or at least one platinum metal from at least one starting material, wherein the starting material is treated in an electrolyte solution using at least one oxidizing ...
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WO/2022/027146A1 |
Methods for leaching and extraction of precious metals. For example, methods of leaching palladium, rhodium, platinum from a substance comprising palladium, rhodium, and/or platinum (such as a platinum group metal (PGM) concentrate, and ...
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WO/2022/031191A1 |
A method of processing copper-containing materials with the recovery of a precious metal concentrate can be used in non-ferrous metallurgy in the comprehensive processing of copper materials, copper-nickel materials or other copper-conta...
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WO/2022/029081A1 |
A process for recovering Cobalt ion, Nickel ion and Manganese ion from metal-containing residues The present invention relates to a process for recovering one or more metal ions selected from the group consisting of Cobalt, Nickel, Manga...
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WO/2022/028900A1 |
The invention relates to a method for extracting gold and/or silver and/or at least one platinum metal from at least one starting material. The starting material is treated in a solution which contains at least one nitrile using at least...
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WO/2022/028901A1 |
The invention relates to a method for obtaining gold. Said method comprises the provision (41) of at least one starting material (20), which contains gold and carbon and/or sulfide ions, and the treatment of comminuted starting material ...
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WO/2022/028898A1 |
The invention relates to a method for extracting gold and/or silver and/or at least one platinum metal. At least one starting material, which contains gold and/or silver and/or at least one platinum metal, is introduced into an aqueous s...
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WO/2022/022608A1 |
The present invention belongs to the field of hydrometallurgy. Disclosed is a method for recovering lithium from lithium-containing wastewater. The method comprises the following steps: (1) adjusting the pH of lithium-containing wastewat...
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WO/2022/022282A1 |
A stone coal vanadium ore oxidizing, crystal breaking, roasting, and vanadium extraction comprehensive utilization system. A crusher, a high pressure roller mill, a first feeding belt, a feeding bin, a second feeding belt, and a spiral f...
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WO/2022/026826A2 |
A method of recovering a metal, such as copper or nickel or zinc or cobalt, from a metal sulfide-containing material in a mined material that is "non-economic" to recover metals from using conventional recovery options before the inventi...
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WO/2022/026833A1 |
A method of recovering a metal, such as copper or nickel or zinc or cobalt, from a metal sulfide-containing material in a mined material that is "non-economic" to recover metals from using conventional recovery options before the inventi...
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WO/2022/022987A1 |
The invention relates to a method for obtaining gold and silver from raw materials (1) such as ores, gangue or by-products having a minimum content of 0.2 ppm gold. The raw material (1) is comminuted by grinding in a grinding step (2). I...
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WO/2022/026530A1 |
Methods and compositions for the removal of metal sulfides from spent catalysts in reactor vessels and associated equipment are described herein. Using the methods described herein, metal sulfides of a spent catalysts are converted to me...
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WO/2022/018491A1 |
A procedure for producing silver concentrate from metallurgical residues containing copper, iron, lead, silicon, silver and antimony; (i) copper leaching with an acid solution of the metallurgical residue yielding a first leached sludge;...
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WO/2022/018490A1 |
Procedure for producing germanium concentrate from metallurgical residues, comprising: (i) copper leaching with a first acid solution of the metallurgical residue, in order to obtain a first leaching solution rich in copper and iron, and...
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WO/2022/018437A1 |
1. The invention provides a method of recovering a precious metal in solid form from an article, the article comprising a base metal attached to the precious metal, the method comprising the steps of: (a) bioleaching of the base metal by...
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WO/2022/013414A1 |
Alkaline oxidation process for treating refractory sulfide ore or concentrate particles enriched in a metal to be recovered comprising stages in which refractory ore or concentrate particles are surface-oxidized in an alkaline oxidation ...
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WO/2021/231597A9 |
Systems and methods using solar evaporation to preconcentrate lithium containing brines to at or near lithium saturation, followed by a separation processes to separate lithium from impurities. A separated impurity stream is recycled to ...
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WO/2022/014555A1 |
This method for producing a 225Ac solution comprises steps (I)-(III). In step (I), a solution (1) containing 226Ra and 225Ac is passed through a solid-phase extractant (a) containing a compound represented by formula (A), and 225Ac is ...
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WO/2022/014234A1 |
Provided is a method for recovering high-purity scandium by effectively reducing impurity content of obtained scandium oxalate and reducing variation in impurity content. The present invention is a method that is for recovering scandiu...
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WO/2022/013824A1 |
THIS invention relates a method for processing a sulphide ore containing metal values comprising the integration of a sand heap leach (10) and a flotation process (12), providing a method which is suited to processing ores with significa...
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WO/2022/007660A1 |
Provided is a method for extracting lithium from brine by using a powdered adsorbent, which method comprises the following steps: a mixture of an adsorbent and brine being subjected to vacuum filtration in a brine separation zone to form...
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WO/2022/010759A2 |
A method for extracting rare earth elements from aqueous solution, comprising: (i) acidifying an aqueous solution containing said rare earth elements with an inorganic acid to result in an acidified aqueous solution containing said rare ...
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WO/2022/010758A1 |
Rare earth extractant compounds having the structure of Formula (1) wherein R1, R2, R3, and R4 are independently selected from alkyl groups containing 1-30 carbon atoms and optionally containing an ether or thioether linkage connecting b...
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WO/2022/006664A1 |
The present invention relates to metallurgical processes, and more particularly to a process for producing titaniferous feedstock and fines, a process for agglomerating titaniferous fines, and a process for producing titaniferous metals ...
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WO/2022/007811A1 |
The present invention relates to the technical field of adsorption-based lithium extraction devices, and provides a device extracting lithium from brine by using an adsorption method. The device comprises a belt-type vacuum filter; the b...
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WO/2022/010998A1 |
Described herein is a process for obtaining rare earth elements from coal-based resources. Advantages of this process include low energy demands, application of environmentally-friendly solvents, and high purities of obtained rare earth ...
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WO/2022/009004A1 |
A process for generating a metal sulfate that involves crystallizing a metal sulfate from an aqueous solution to form a crystallized metal sulfate in a mother liquor with uncrystallized metal sulfate remaining in the mother liquor; separ...
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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/2022/003198A1 |
The present disclosure is directed to processes for separating a mixture of oxalates of two or more of Ni (nickel), Co (cobalt) and Mn (manganese). Such processes are useful, for example, to separate recovery of two or more of Ni, Co and...
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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/2022/005317A1 |
The present invention refers to processes of obtaining lithium (Li) from primary media (A) by means of incorporation media (B), including a step of decomposition at a high temperature of said incorporation media, so as to obtain delivery...
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WO/2022/000881A1 |
Provided are a carboxylic acid compound of formula I, and a preparation method therefor and application thereof. When being applied to the extraction and separation of metal ions, the carboxylic acid compound can achieve a high separatio...
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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/2022/006469A1 |
The present invention describes systems and methods of a novel hydrometallurgical process to perform reductive-acid leaching and separation of constituent compounds from solid material generated from the electrodes of lithium-ion batteri...
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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/2021/255097A1 |
The present disclosure provides improved methods for the removal of heavy metals, in particular cadmium, from an aqueous phosphoric acid containing composition, wherein an organothiophosphorous heavy metal precipitating agent and an ioni...
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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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