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WO/2021/122912A1 |
The invention provides a method for reducing impurities from roasted molybdenum concentrate (RMC), comprising: performing a first treatment in a first reactor, on a portion of the RMC forming a first treated suspension, the first treatme...
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WO/2021/119862A1 |
A hydrometallurgical process for curing primary and secondary sulphides to improve copper recovery, which comprises: (a) crushing: the size of the mineral must be reduced to less than 5 cm; (b) agglomeration: the crushed mineral must be ...
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WO/2021/119728A1 |
A method for the recovery of vanadium from a vanadium containing feed stream, the method comprises: subjecting the vanadium containing feed stream to an acid leach step to form a slurry including a pregnant leach solution that comprises ...
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WO/2021/117385A1 |
The present invention addresses the problem of providing a method for recovering a catalytic metal from an aqueous solution which contains a catalytic metal which is coprecipitated with tin, said method being characterized by including: ...
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WO/2021/116185A1 |
Stationary phase for preparative High Pressure Liquid Chromatography (HPLC) for preparative separation of Rare Earth Elements (REEs), the stationary phase comprising porous particles suitable for HPLC having a non-polar surface being imp...
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WO/2021/119085A1 |
A system for melting lead scrap pieces. The system includes a vessel. A vortexing chamber is disposed in the vessel. The vortexing chamber includes an inlet, an outlet and an open top configured to receive lead pieces. A pump is disposed...
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WO/2021/116742A1 |
The invention relates to a method for obtaining an alkaline earth metal compound from mined materials, which comprises: (i) leaching a quantity of a mined material, using a leaching solution comprising at least one first acid; (ii) filte...
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WO/2021/105889A1 |
An apparatus and a method for purifying a Bayer process stream that includes a FILTER stage comprising at least one filter configured to filter particulate matter from at least one ionic liquid stream from EXTRACT, STRIP, and REGEN stage...
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WO/2021/105215A1 |
The present invention relates to a method for recovery of metals from exhausted acid solutions, which acid solutions contain metal oxides comprising iron, chrome and nickel, comprising the steps of adjusting the solution, by adding preci...
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WO/2021/101129A1 |
Disclosed are a membrane-based process and system capable of effectively concentrating and recovering lithium, which is contained in an aqueous solution or brine, within a short time by performing a nanofiltration step at the front end t...
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WO/2021/097527A1 |
The present invention relates to a process for recovering metals from metal-bearing material, said process comprising the step of contacting the metal-bearing material with condensed phosphoric acid at a temperature of greater than 215 Â...
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WO/2021/099021A1 |
A process for recovering precious metal from an acidic aqueous solution containing dissolved precious metal and free chlorine, comprising the sequential steps: (1) a salt of a non-precious metal at a low oxidation stage and in the form o...
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WO/2021/097518A1 |
A method for preparing aluminium compounds from kaolin comprises (a) leaching the kaolin with sulphuric acid, (b) separating a pregnant leach solution from a solid residue, (c) precipitating an alum containing solid from the pregnant lea...
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WO/2021/094647A1 |
The present invention relates to an arrangement and a method for recovering lithium hydroxide from a fresh feed comprising a mineral raw material containing lithium or a raw material containing lithium carbonate, or a mixture of these ra...
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WO/2021/094823A1 |
Processes for recovering iodine from solid materials in which copper is present are performed by combining the solid material with a basic solution having a pH greater than 10 to solubilize and remove iodine from the solid material, ther...
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WO/2021/090220A2 |
This invention relates to a method for recovering metal values from ore, including the steps of depositing two or more processed ore fractions with different particle sizes in discrete layers (16,18) to form a layered heap leach structur...
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WO/2021/089233A1 |
The present invention relates to a method for obtaining platinum and/or ruthenium. Said method comprises the provision of a solution of ethanol in water (11), the introduction of at least one starting material (20) into the solution (12)...
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WO/2021/088277A1 |
The present invention relates to the technical field of flue gas denitration catalysts. Disclosed are a hydrogenated TiO2 denitration catalyst, a preparation method therefor, and application thereof. The hydrogenated TiO2 denitration cat...
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WO/2021/088285A1 |
Disclosed are an extraction system and extraction method for extracting lithium and boron by separating calcium from a calcium-containing brine with a secondary amide/alkyl alcohol composite solvent and the use of the extraction method. ...
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WO/2021/088290A1 |
An extraction system for separating calcium and extracting lithium from calcium-containing brine by using a secondary amide/alkane composite solvent, an extraction method, and an application thereof. The extraction system contains a seco...
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WO/2021/088288A1 |
An extraction system and an extraction method for extracting lithium and boron by separating magnesium from magnesium containing brine using a secondary amide/alkyl alcohol composite solvent, and an application thereof. The extraction sy...
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WO/2021/091929A1 |
Provided are processes for extracting lithium and optionally nickel from a Nickel(II)/Lithium(I) (Ni2+/Li+) solution. The extraction is optionally performed in a series of steps with counterflow of aqueous and organic flows to thereby pr...
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WO/2021/088286A1 |
Provided are an extraction system and an extraction method for separating magnesium and extracting lithium from magnesium-containing brine using secondary amide solvent, and application thereof. The extraction system comprises secondary ...
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WO/2021/090571A1 |
Provided is a method for separating lithium, with which lithium is separated from a lithium solution containing 200 mg/L or more of lithium and 20 mg/L or more of fluorine. The method includes: a first removal step for adding a first com...
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WO/2021/088287A1 |
An extraction system and method for separating magnesium and extracting lithium from magnesium containing brine using a secondary amide/tertiary amide complex solvent and application of the extraction method. The extraction system contai...
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WO/2021/091822A1 |
An integrated refinery process for the disposal of metal-containing spent coked catalyst from hydrotreating and/or hydrocracking unit operations includes introducing the spent coked catalyst into a membrane wall gasification reactor in t...
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WO/2021/088289A1 |
Provided are an extraction system, extraction method, and application for separating magnesium and extracting lithium from a magnesium-containing brine by using a secondary amide/alkane composite solvent. The extraction system contains s...
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WO/2021/084119A1 |
The present disclosure relates to a process, a system and a use for removing micropollutants (1) in liquid (2). The process comprises providing liquid (2) to a container (3) adapted to hold a liquid and/or a gas, providing magnetic activ...
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WO/2021/082258A1 |
A method for comprehensively treating a laterite nickel ore by using a nitric acid medium, comprising: crushing and finely grinding the crude ore of the laterite nickel ore to obtain ore powder; adding a nitric acid solution as a leachin...
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WO/2021/081590A1 |
A vanadium recovery process (10), the process comprising: (i) passing an ore or concentrate (12) containing vanadium, titanium and iron to a reduction step (18) forming a reduced ore or concentrate; (ii) passing the reduced ore or concen...
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WO/2021/081682A1 |
The invention relates to: a method for biodisintegrating scrap metal using a bacterial consortium adapted to high concentrations of iron(II) sulfate and iron(III) sulfate, deposited in the Chilean Collection of Microbial Genetic Resource...
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WO/2021/081679A1 |
The present invention describes a solid-liquid-solid hydrometallurgical process, optimized and independent of redox potential, to increase the solubilization of metals from ores and/or concentrates with a particle size distribution of le...
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WO/2021/083263A1 |
Disclosed is a method for extracting lithium by means of extraction-back extraction separation and purification, the method comprising the following steps: (1) extracting and separating a lithium-containing solution using an extraction s...
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WO/2021/085777A1 |
The present invention relates to a method for recovering lithium from brine, and provides a method for recovering lithium from brine, the method comprising: (a) an impurity removal step of adding a carbonate supply source to brine includ...
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WO/2021/081629A1 |
In order to reduce the contamination of scandium oxide products, the present disclosure provides a process for removing at least one metal contaminant from a scandium (Sc) concentrate. The process is based on contacting the Sc concentrat...
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WO/2021/085023A1 |
Provided is a method for treating a gold-containing ore or a gold-containing refining intermediate produced by subjecting the ore to a refining treatment, the method comprising: a leaching step of leaching gold out from the ore or the re...
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WO/2021/083758A1 |
The present invention relates to a method of recovering iridium in the form of iridium solutions, metal, oxides or salts from a body, such as a spent catalyst, comprising iridum oxides.
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WO/2021/075135A1 |
A method for recovering manganese from waste dry batteries, said method sequentially comprising, in the following order: a step for sorting waste dry batteries; a fracturing/sieving step for obtaining a particulate material from the wast...
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WO/2021/076013A1 |
A sorption apparatus comprises: a housing, an air lift, a circulator, a disperser, pipe connections for the intake and discharge of slurry or solution, as well as sorbent, and a drain disposed below the slurry level. Furthermore, the dra...
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WO/2021/074482A1 |
An autoclave (100) for pressure oxidation of a slurried material comprising at least one sulfide material, and a method.The autoclave (100) comprises a pressure vessel (1) for receiving said slurried material. The pressure vessel (1) com...
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WO/2021/075467A1 |
The present invention is a method for producing, from a cobalt sulfate solution including nickel ions, a high-purity cobalt sulfate solution having a higher purity level of cobalt compared to the aforementioned cobalt sulfate solution. T...
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WO/2021/074124A1 |
The present invention refers to an improved process for recovering zinc from primary and secondary raw materials, said process comprising a first leaching step wherein the ratio between the zinc weight contained in the raw material and t...
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WO/2021/072534A1 |
A process for the recovery of titanium dioxide from various feedstocks comprising titanium, vanadium and iron compounds is disclosed. The process comprises: leaching the feed material with a first HCl solution (e.g. 20% by weight or more...
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WO/2021/075136A1 |
A method for recovering manganese from waste dry-cell batteries according to the present invention includes the following steps carried out in the following order: a waste dry-cell battery sorting step; a crushing and sifting step for ob...
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WO/2021/069822A1 |
Disclosed is a method for recycling a battery comprising the following steps: a) dissolving a piece of battery waste, for example an electrode, comprising lithium and a metal chosen from cobalt and manganese, whereby a solution to be tre...
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WO/2021/062549A1 |
The present disclosure relates to redox active materials, such as the compound of formula (I), comprising at least one 2,5-dithio-7- azabicyclo(2.2. l)heptane unit connected to a surface thereof, as well as processes for making said redo...
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WO/2021/064274A1 |
A feedwell apparatus trough, plant and use. The apparatus is adapted to materials comprising liquids carrying suspended particles, such as slurry containing minerals. The feedwell apparatus (100) comprises - a supply channel (1) for rece...
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WO/2021/059941A1 |
For recovering scandium from an acidic solution containing at least scandium and chromium via an ion-exchange treatment using a chelate resin, the present invention provides a method for efficiently concentrating the scandium while suppr...
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WO/2021/056110A1 |
A process for the recovery of a vanadium oxide from iron-bearing chloride-based processing liquors is disclosed. The process comprises: heating the chloride leach solution to precipitate a portion of both vanadium and iron as oxides in s...
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WO/2021/061343A1 |
A system and process for concentrating a lithium stream is disclosed. The lithium stream is directed to a reverse osmosis unit which produces a concentrate containing lithium compounds. The RO concentrate is directed through two pressure...
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