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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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WO/2021/173291A1 |
A method of recovering substantially rare earth elements (REEs) from magnets, including first dissolving a magnet to yield a solution containing Nd, Pr, and Dy, and then equilibrating a first column with Cu2+ solution to yield a first eq...
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WO/2021/169780A1 |
A gold leaching agent for selectively leaching gold from a gold-containing material, and a preparation method therefor and application thereof. The gold leaching agent is composed of halogen-containing organic matters that are soluble in...
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WO/2021/168210A1 |
Disclosed herein are methods for the recovery of lithium from lithium-bearing materials. More specifically, disclosed herein are methods comprising heating the lithium-bearing material with a solid roasting agent, forming a water suspens...
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WO/2021/165225A1 |
A process for separating a fusion mix sample comprising a slag material and a collector material using a separator. The separator comprising a plurality of impact members configured to rotate. The process comprising the steps of providin...
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WO/2021/166958A1 |
Provided are a slurry processing apparatus and a slurry processing method having a simple apparatus configuration and capable of promoting a solid-liquid reaction of a slurry. The slurry processing apparatus is characterized by compris...
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WO/2021/163803A1 |
The present invention relates to the recovery of metals from raw ores or concentrates, and more specifically, to the recovery of rare earth elements, or oxides or salts thereof, from ores containing bastnaesite carbonatite, and/or monazi...
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WO/2021/166755A1 |
Provided is a method for treating an alloy by which nickel and/or cobalt can be selectively isolated from an alloy that contains copper as well as nickel and/or cobalt, in a waste lithium ion battery or the like. The present invention ...
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WO/2021/160241A1 |
The invention relates to a method and an apparatus for extracting lithium from an aqueous lithium source (5) comprising the steps of removing by nanofiltration (S1) dissolved calcium ions Ca2+ and/or dissolved magnesium ions Mg2+ from an...
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WO/2021/160923A1 |
The present invention relates to an arrangement and method for extracting metals from nickel-containing laterites, comprising the acid treatment of a ground laterite material, the separate heat treatment of an obtained acid-containing la...
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WO/2021/161316A1 |
The invention relates to hydrometallurgical method for recovering lithium and one or more transition metals from spent lithium ion batteries, comprising: treating an electrode material of the batteries in an alkaline solution to dissolve...
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WO/2021/161178A1 |
The present invention relates to a method for recovering metal zinc from a solid metallurgical waste containing zinc and manganese, comprising the steps of: a. bringing said solid metallurgical waste into contact with an aqueous leaching...
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WO/2021/159089A1 |
A method for recovering metals from waste materials includes steps of contacting a waste material feed stream with a first lixiviant adapted to leach copper and other base metals from the waste material feed stream and provide a treated ...
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WO/2021/158491A1 |
Systems and methods for separating Y and Sr are provided. The systems and methods provide combinations of solutions, vessels, and/or media that can provide Y solutions of industrially beneficial concentration.
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WO/2021/153816A1 |
The present invention relates to a lithium extraction method, and can provide a lithium extraction method comprising: a step of preparing lithium phosphate containing impurities; a step of dissolving the lithium phosphate and impurities ...
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WO/2021/155224A1 |
Disclosed herein are methods for the recovery of one or more rare earth elements (REEs). More specifically, disclosed herein is a method comprising n stages, wherein each stage comprises treating a sample comprising one or more REEs with...
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WO/2021/150208A1 |
A system and method for the recovery and separation of rare earth elements (REEs) are provided. The system and method include the supported membrane solvent extraction of REEs and the separation of light and heavy REEs that have been rec...
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WO/2021/147342A1 |
An all-component rapid microwave digestion and noble metal ion liquid extraction method for a waste circuit board, belonging to the field of hydrometallurgy. As microwave can penetrate a leaching medium and directly heat a circuit board,...
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WO/2021/148403A1 |
The present invention is in the field of the extraction of lithium from a material comprising lithium and at least another metal. In particular, the invention concerns a process of extraction of lithium at least, from a material comprisi...
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WO/2021/146768A1 |
A process for producing alumina and a lithium salt comprising the steps of: (a) calcining an alpha spodumene ore or concentrate to produce beta spodumene; and (b) (I) leaching beta spodumene from the calcining step (a) with an alkaline s...
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WO/2021/147816A1 |
A method for purification of an aqueous zinc sulfate solution. Copper and cadmium are removed from a neutral leaching solution by using a zinc powder, a zinc powder and a copper-antimony activator are added at a temperature of 80-95°C f...
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WO/2021/146797A1 |
A method for recovering vanadium values from a feed material comprising oxidised and carbonaceous materials obtained from a shale deposit or vanadium ore is disclosed. In the method, a vanadium concentrate enriched in vanadium and delete...
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WO/2021/150552A1 |
An improved method for recovering metals from spent catalysts, particularly from spent slurry catalysts, is disclosed. The method and associated processes comprising the method are useful to recover spent catalyst metals used in the petr...
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WO/2021/147573A1 |
Disclosed is a method for extracting metal nickel from a laterite nickel ore leaching liquor. The whole technological process of the method comprises the following steps: enabling laterite nickel ore leaching liquor to enter a resin towe...
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WO/2021/143434A1 |
Disclosed is a new continuous lithium-sodium separation method. A lithium-sodium separation mother solution, a first leacheate, a desorption solution, a second leacheate and a lithium-sodium separation adsorption tail solution respective...
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WO/2021/145099A1 |
The objective of the present invention is to synthesize a zirconium complex by making even a low concentration of 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) react with radioactive zirconium at a high reaction rate. A...
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WO/2021/145488A1 |
The present invention relates to a method for extracting lithium and provides a method for extracting lithium, comprising the steps of: preparing a lithium-containing solution containing an alkaline earth metal; controlling the activity ...
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WO/2021/143809A1 |
Disclosed is a method for extracting lithium from lithium-containing low-magnesium brine, relating to the technical field of chemistry and chemical engineering. The method comprises the following steps: mixing CaO, water and excess Na2CO...
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WO/2021/140840A1 |
One purpose of the present invention is to provide a system for producing a magnesium chloride aqueous solution, said system making it possible to further reduce drug-related costs compared to conventional methods. The present inventio...
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WO/2021/138750A1 |
The present invention relates to an alternative process for the recovery of metals, such as copper and zinc, in addition to cyanide, from cyanide-bearing solutions present in gold and silver recovery mining processes in a more efficient ...
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WO/2021/140077A1 |
The invention relates to a method for producing sulphuric acid and cement clinker and for obtaining rare earth elements using calcium sulphate, which is formed and separated as a solid by-product during the production of phosphoric acid ...
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WO/2021/140012A1 |
The invention concerns a process suitable for the recovery of platinum group metals (PGM) present in PGM-bearing catalysts comprising silicon carbide (SiC). More particularly, the process for the recovery of PGM present in PGM-bearing ca...
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WO/2021/134516A1 |
A comprehensive treatment method for applying sodium-containing ammonium waste liquid to laterite nickel ore, comprising the steps of ore proportioning pre-soaking, oxygen pressure leaching, partial neutralization, impurity removal by pr...
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WO/2021/135946A1 |
A new method for extracting lithium from salt lake brine, comprising the following steps: a salt lake old brine raw material, desorption liquid, low-magnesium water, and adsorption tail liquid pass through an old brine feeding pipe (2), ...
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WO/2021/138345A1 |
Processes for extracting lithium from a clay mineral and compositions thereof are described. The extraction process includes providing a clay mineral comprising lithium, mixing a cation source with the clay mineral, performing a high-ene...
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WO/2021/127711A1 |
A method for the recovery of a precious metal from activated carbon fines which includes the steps of adsorption of the precious metals from the activated carbon fines onto a weak-base anion exchange resin which contains guanidine functi...
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