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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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WO/2021/255065A1 |
The present disclosure provides improved methods for the removal of heavy metals, in particular cadmium, from an aqueous phosphoric acid containing composition, using an organothiophosphorous heavy metal precipitating agent to said compo...
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WO/2021/256732A1 |
In a method for recovering an active metal of a lithium secondary battery, a sulfuric acid solution is added to a lithium metal composite oxide so as to prepare a sulfated active material solution. A transition metal is extracted from th...
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WO/2021/148758A9 |
The present invention relates to a method for recovering one or more metals M chosen from gold and metals from the platinum group contained in an acidic aqueous phase A1, said method comprising the following steps: (1) extracting the met...
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WO/2021/252381A1 |
The present invention relates to recovery of lithium from liquid resources to produce lithium solutions while limiting impurity precipitation in the lithium solutions.
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WO/2021/249074A1 |
Disclosed in the present invention is an intelligent flow control device for rare earth extraction, relating to the technical field of rare earth extraction. The intelligent flow control device comprises: a housing, a material passing ch...
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WO/2021/246340A1 |
A method according to the present invention is for recovering a platinum group metal present within a film formation chamber after introducing a feedstock gas containing the platinum group metal into the film formation chamber and formin...
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WO/2021/241944A1 |
The present invention relates to a method for recovering a valuable metal and, more specifically, to a method for recovering a valuable metal from a waste electrode material of a lithium secondary battery by using lithium carbonate. The ...
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WO/2021/238738A1 |
Disclosed are applications of a carboxylic compound serving as an extracting agent and a metal ion extraction method. The carboxylic compound is provided with the structure as represented by formula I. The extracting agent as represented...
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WO/2021/237274A1 |
A process for recovering titanium dioxide from a titanium-bearing material, the process including the steps of: leaching the titanium-bearing material in a first leaching step at atmospheric pressure and at a temperature of 70 to 97°C w...
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WO/2021/241742A1 |
The present invention relates to a method for separating and recovering a cobalt salt and a nickel salt, the method including a separation step for separating a cobalt salt and a nickel salt from a rare metal-containing aqueous solution ...
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WO/2021/235699A1 |
The present invention relates to a method for recovering precious metals from a waste printed circuit board and, more specifically, to: a step (S1) of separating a precipitate comprising tin and lead by pre-treating a waste printed circu...
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WO/2021/236435A1 |
Methods and systems (300) for separation of thorium from uranium and their decay products are provided. The method comprises combining a nuclear fuel feedstock (102) comprising thorium and uranium with a first acid (104, 204) to form a f...
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WO/2021/234741A1 |
The invention relates to a microwave device able to trigger the labelling of gallium-68 radiopharmaceuticals in kit in order to provide the completion of the complexation reaction in a few seconds. The invention also relates, more in gen...
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WO/2021/234653A1 |
This invention relates to a method of recovering metal values such as gold, copper, nickel, zinc and uranium from ores containing said metal values. The method includes the steps of crushing an ore (10) to provide a sand containing metal...
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WO/2021/226661A1 |
A method for separating radionuclides from ores, ore concentrates, and tailings or mixtures of two or more thereof comprising the steps of (a) providing an ore, ore concentrate, or tailings, or a mixture of two or more thereof in which r...
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WO/2021/231894A1 |
Systems and methods for removing lithium and/or magnesium from an aqueous solution are disclosed. The aqueous solution is extracted using an organic phase composition that comprises a hydroxamic acid, desirably an N-alkyl alkanohydroxami...
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WO/2021/226719A1 |
A green chemistry hydrometallurgical process for recovering one or more metals from a metal-containing material includes leaching the metal-containing material with formic acid, obtaining a leachate comprising the one or more metals as o...
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WO/2021/222585A2 |
Disclosed herein are methods of using reactor outputs to purify materials. For example, methods of using acid and/or base produced in a reactor to purify materials (e.g., limestone, dolomite, waste streams, and/or ash) are described here...
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WO/2021/219935A1 |
The present application provides a method for recovering metal from metal- containing material by leaching, the method comprising providing aqueous solution containing leaching agent precursor, providing one or more source(s) of external...
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WO/2021/217273A1 |
Methods for recovering gold from a refractory gold ore and concentrate are described. The method can include leaching the refractory gold ore and concentrate with the alkaline reagent under ambient or near-ambient conditions and a subseq...
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WO/2021/212214A1 |
A method of producing lithium phosphate from a lithium source includes the step of (a) concentrating the lithium to produce a lithium concentrate, with an ion exchange sorbent, and (b) reacting the lithium concentrate with phosphate anio...
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WO/2021/215521A1 |
A method for producing a mixed metal salt that contains a manganese ion, and a cobalt ion and/or a nickel ion, said method comprising: an Al removal step wherein aluminum ions are removed from an acidic solution, which is obtained by sub...
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WO/2021/215484A1 |
The present invention pertains to a method for recovering a rare metal salt, the method comprising: an acid treatment step for obtaining a rare metal-containing acidic aqueous solution by putting a material containing monovalent and poly...
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WO/2021/215486A1 |
The present invention provides a method for producing lithium hydroxide, said method enabling the production of lithium hydroxide from lithium sulfate at a relatively low cost. A method for producing lithium hydroxide from lithium sulfat...
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WO/2021/214372A1 |
A mixing arrangement (100) for mixing two solutions, a mixer settler unit (200) and a use. The mixing arrangement (100) comprises a mixing device (1) arranged in the mixing space (6) for rotating therein, the mixing device (1) comprising...
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WO/2021/215520A1 |
A method for producing a metal mixture solution which contains manganese ions, and cobalt ions and/or nickel ions, said method comprising: an Al removal step wherein aluminum ions are removed from an acidic solution, which is obtained by...
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WO/2021/215449A1 |
Provided is a method for efficiently promoting a leaching reaction of copper. Equipment for inducing leaching of copper, wherein: the equipment comprises a leaching reaction reactor and a reduction potential controller; the reactor is co...
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WO/2021/207792A1 |
A process for leaching minerals that contain metal sulphides and one or more precious metals or precious metal compounds, the process comprising the steps of a first leaching step to leach the minerals under oxidative conditions at a pH ...
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WO/2021/207791A1 |
A process for treating minerals containing metal sulphide and a precious metal, the process comprising fine grinding the minerals and subjecting the minerals to a first leaching step conducted under oxidising conditions at a pH of from 5...
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WO/2021/196773A1 |
Disclosed is a method for pressurized leaching of a laterite nickel ore with phosphoric acid, which belongs to the technical field of hydrometallurgy. The method comprises the following steps: crushing a laterite nickel ore to a particle...
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WO/2021/202446A1 |
This disclosure provides a method of improving gold recovery in a cyanide leaching circuit comprising a gold ore slurry. The method includes the step of providing a gold recovery additive chosen from polyacrylic acid, copolymers of acryl...
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WO/2021/202914A1 |
A method for purifying lutetium includes providing a solid composition comprising ytterbium and lutetium and subliming or distilling ytterbium from the solid composition at a temperature of about 1196°C to about 3000°C to leave a lutet...
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WO/2021/190025A1 |
An ammonium complex system-based method for separating and purifying lead, zinc, cadmium, and copper, comprising the following steps: a zinc-containing raw material is leached using a leach solution to produce a leached solution; a filtr...
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WO/2021/194846A1 |
A process for efficiently and economically recovering palladium from a colloidal suspension of tin and palladium involves the use of centrifugation to obtain a sediment enriched in tin and a centrifugate enriched in palladium. An aggrega...
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WO/2021/193096A1 |
Provided is an alloy treatment method comprising separating copper and zinc from an alloy containing nickel and/or cobalt and also containing copper and zinc to obtain nickel and/or cobalt selectively. An alloy treatment method is prov...
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WO/2021/190279A1 |
Disclosed in the present application is an autoclave, the autoclave comprising: an autoclave body, which is provided with an inner cavity and is made of a titanium-steel explosive composite plate; compartment plates, which are disposed i...
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WO/2021/193424A1 |
Provided is a method by which the quality of an ore slurry supplied to an acid leaching treatment can be stabilized in the hydrometallurgical process for nickel oxide ore. The present invention is a treatment method for an ore slurry s...
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WO/2021/190402A1 |
Provided is a method for preparing lithium hydroxide from a lithium-containing low-magnesium brine, which relates to the technical field of salt lake lithium extraction. The method comprises: using an inorganic base to adjust the pH valu...
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WO/2021/193095A1 |
The present invention provides a method for treating an alloy, wherein nickel and/or cobalt is obtained by separating copper and zinc from an alloy that contains copper, zinc, and nickel and/or cobalt. The present invention is a method...
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WO/2021/186445A1 |
This invention is directed to a method for recovering valuable metals from spent lithium-ion- batteries using CO2/CO/H2O gas mixture, or CH4/air, or solid carbon or combination thereof.
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WO/2021/186376A1 |
An oxidative bioleaching process for leaching a base metal from an ore that includes an ore agglomeration step, an ore stacking step wherein agglomerated ore is stacked to form a heap, a curing step, a rinse step, an inoculation step and...
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WO/2021/186374A1 |
A method of leaching copper from a heap of ore which includes an ore agglomeration step, an ore stacking step wherein agglomerated ore is stacked to form a heap, a curing step, a leach step, and a rinse step, wherein, during the ore aggl...
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