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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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WO/2021/186143A1 |
A method for separating of at least two transition metals, the method comprising: injecting a feed solution into a chromatography column comprising a chromatographic support media, the feed solution comprising at least two transition met...
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WO/2021/182451A1 |
The present invention provides a method for recovering a valuable substance, by said method a valuable substance being recovered from a lithium ion secondary battery. This method for recovering a valuable substance comprises: a heat trea...
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WO/2021/182998A1 |
A method for extracting scandium from scandium-containing materials comprises repulping a cake of a scandium-containing material using a solution of a sodium carbonate and sodium bicarbonate mixture, carbonization leaching the scandium-c...
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WO/2021/181275A1 |
A noble and base metal recovery process from a comminuted ore which is added to a cyanide leach circuit. The solution from the leach circuit is treated with activated carbon that becomes loaded with the metal and is delivered to an eluti...
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WO/2021/181997A1 |
The purpose of the present invention is to collect cobalt with high purity from a solution of interest in which cobalt and an impurity metal are dissolved. A cobalt collection method comprising: adding an alkali to a solution of interest...
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WO/2021/182452A1 |
The present invention provides a method for recovering lithium, and the like, said method for recovering lithium enabling recovery of lithium from a lithium ion secondary battery. This method for recovering lithium comprises: a heat trea...
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WO/2021/178748A1 |
Described herein are methods for recovering lithium metal, lithium hydride, or lithium hydroxide from lithium salts by dissolving the lithium salt in ionic liquids and applying a current to the solution.
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WO/2021/176037A1 |
The present disclosure relates to a method for separating thorium and cerium from a solid concentrate comprising compounds of thorium, cerium and one or more further rare earth metals, obtainable by increasing to pH 1.8 the pH of an aque...
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WO/2021/177843A1 |
The present invention relates to a new hydrometallurgical method for simultaneously extracting zinc, lead, silver, iron and calcium from electric arc furnace dust (hazardous waste) produced by the steelmaking industry (steelworks), in th...
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WO/2021/174348A1 |
A method of processing a black mass material feed material can include a)receiving a black mass material feed material; b) acid leaching the black mass material at a pH that is less than 4, thereby producing a pregnant leach solution (PL...
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WO/2021/170181A1 |
The present invention relates to a sustainable method for recycling smelting works dusts and sludges to produce iron-containing, heavy-metal-depleted reclaimed materials and recovering lead and zinc by: providing a first starting materia...
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WO/2021/172718A1 |
The present invention relates to a metal leaching method using linking between bioleaching and adsorption, the method adsorbing and recovering metal cyanide ions generated through bioleaching, thereby increasing metal leaching efficiency...
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WO/2021/172615A1 |
The present invention provides a method for recovering tantalum. A method for recovering tantalum, according to an embodiment of the present invention, comprises: a leaching step in which tantalum scrap reacts with a preset concentration...
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WO/2021/173290A1 |
A method for separating substantially pure rare earth metals and other metals from a mixed source, including putting a plurality of rare earth metals and other metals into solution to define a solution containing a plurality of respectiv...
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WO/2021/169483A1 |
A device and method for removing heavy metal ions in photovoltaic waste liquid, belonging to the technical field of waste liquid recovery and treatment. The device adopts different metal absorption mechanisms, each metal absorption mecha...
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