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WO/2020/149122A1 |
Provided is a wet smelting method whereby the amount of nickel coprecipitated with impurities is reduced and nickel yield can be increased.　The present invention provides a method for manufacturing a nickel/cobalt mixed sulfide, the me...
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WO/2020/142855A1 |
The present patent relates to a plant in a regime for the two-stage production of copper sulphate pentahydrate from oxidised copper minerals, with an average content of 20% Cu, with mineral species predominant in copper oxides. The first...
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WO/2020/142856A1 |
The present patent considers a two-stage method for obtaining copper sulphate pentahydrate from oxidised copper minerals with an average content of 20% Cu, wherein the predominant mineralogical species are copper oxides. The first stage ...
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WO/2020/137995A1 |
A method for recovering at least cobalt, among valuable metals of cobalt and nickel, from an acidic solution that is produced by subjecting a waste material containing a positive electrode material of a lithium ion secondary battery to a...
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WO/2020/138083A1 |
Provided is a method for producing an electrolyte solution for redox flow batteries using incineration ash as a raw material, whereby it becomes possible to collect high-purity vanadium easily and with high efficiency to produce an elect...
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WO/2020/137997A1 |
Provided is a method for recovering at least cobalt from among the valuable metals cobalt and nickel from an acid solution containing cobalt ions, nickel ions and impurities, obtained by subjecting waste containing positive electrode mat...
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WO/2020/137974A1 |
The present invention relates to an alkali metal salt manufacturing method that is characterized by including: a pretreatment step in which a refining-inhibiting substance is removed from an aqueous solution of an alkali metal salt, usin...
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WO/2020/128137A1 |
A method of treating process water of a flotation plant (1) is disclosed. The flotation plant (1) comprises a mineral flotation line (10) and a process water circuit (20) for treating underflow and/or overflow of the flotation line. The ...
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WO/2020/124130A1 |
A method for the recovery of metals from a feed stream containing one or more value metals and lithium, the method comprising: subjecting the feed stream to a sulphuric acid leach to form a slurry comprising a pregnant leach solution of ...
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WO/2020/126632A1 |
The present disclosure concerns a process for the recovery of valuable metals from polymetallic nodules. A two-stage process using SO2 in an acidic aqueous media is disclosed. In a first step, performed in mildly acidic conditions, Mn, N...
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WO/2020/124238A1 |
The present disclosure relates to a process for purifying a zircon sand. The process notably comprises an alkali fusion reaction conducted in conditions such that the fusion reaction is incomplete with respect to zircon as well as variou...
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WO/2020/118446A1 |
The present disclosure broadly relates to a process for recovering gold and/or silver values from various feedstocks. More specifically, but not exclusively, the present disclosure relates to a process for the selective recovery of gold ...
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WO/2020/118455A1 |
It is disclosed a chemical process for recovery of silver, copper, lead, cadmium, zinc and iron from a zinc and iron bearing feed material including electric arc furnace dust and spent pickle liquor. In the process, a feed solution prepa...
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WO/2020/118436A1 |
Processes for the recovery or purification of lithium species from various sources are described. Such sources include natural sources or deposits, such as in mining applications, and synthetic or non-natural sources, such as in the recy...
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WO/2020/115369A1 |
The present invention concerns a process for producing calcium carbonate from a calcium- containing alkaline slag material, the process containing the steps of - extracting the alkaline slag material in a series of extraction steps, incl...
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WO/2020/113264A1 |
A chemical processing apparatus (10) comprising: at least one vessel (10) comprising: an inlet (12) for a liquid process stream; an outlet pipe (14A) for a liquid process stream to exit the vessel (10); and a zone (16) at least partially...
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WO/2020/116795A1 |
The present invention relates to a method for producing lithium hydroxide from a lithium concentrate by mixing and roasting the lithium concentrate with sodium sulfate, the method being capable of efficiently recovering lithium ions from...
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WO/2020/112813A1 |
A method includes processing at least one battery into a plurality of core sections. Each core section in the plurality of core sections includes an anode section, a cathode section including a cathode material, a separator section dispo...
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WO/2020/107074A1 |
A process and system are disclosed for producing lithium oxide from lithium nitrate. In the process and system, the lithium nitrate is thermally decomposed in a manner such that a fraction of the lithium nitrate forms lithium oxide, and ...
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WO/2020/107122A1 |
A process for recovering zinc and associated value metals from zinc-bearing ores, concentrates and intermediates, especially from electric arc furnace dust (EAFD) and spent steel mill zinc pickle liquor (ZPL), comprising leaching the fee...
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WO/2020/109045A1 |
The present invention relates to a process for the recovery of transition metals from batteries comprising (a) treating a transition metal material with a leaching agent to yield a leach which contains dissolved salts of nickel and/or co...
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WO/2020/112221A1 |
A recycling process that facilitates separation of materials from metallic substrates by cryogenically cooling the recyclable items to induce embrittlement of the metals. Embrittled metals may be shattered more efficiently and with a hig...
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WO/2020/099912A1 |
The invention relates to a chemical and physical hydrometallurgical method with solid-liquid-solid interaction, for the solubilisation of copper sulphides, by means of the selective transformation and precipitation of soluble, chlorinate...
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WO/2020/099966A1 |
The present invention relates to a solid-liquid-solid hydrometallurgical method in the presence of hydrated and/or non-hydrated salts in an oversaturation condition, which is achieved by the intentional and repetitive application of dryi...
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WO/2020/097689A1 |
A method for the alkaline digestion of soda-lime glass comprising forming a mixture of soda lime glass and a hydroxide solution, the mixture having at least 100 grams of glass per litre of H2O, the hydroxide solution having a concentrati...
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WO/2020/093367A1 |
A production line used for extracting nickel and cobalt from a laterite nickel ore and having an anti-scaling function, comprising an apparatus for acid-leaching a laterite nickel ore, an iron removal reaction apparatus, and a heat excha...
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WO/2020/093368A1 |
A laterite nickel ore acid leaching apparatus, comprising a vertical reaction tank (7) and a horizontal reactor (13). The vertical reaction tank (7) is provided at the end proximate to the horizontal reactor (13), and a material output t...
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WO/2020/093365A1 |
Disclosed is a wet metallurgy method for treating low-quality lateritic nickel ore using atmospheric pressure and elevated pressure combined acid leaching, comprising the following steps: formulating a transition ore pulp, mixing the hea...
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WO/2020/093180A1 |
The invention relates to a system and method for integrated control of the leaching process in piles, which enables the automation of operations and the optimisation of the efficiency of extraction and then the recovery of the metals of ...
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WO/2020/093096A1 |
A method for the preparation of titanium dioxide, the method comprising the steps of subjecting a titanium containing leach residue to a concentrated sulfuric acid digest step; and in turn subjecting that residue to a leach in dilute sul...
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WO/2020/093366A1 |
Provided is a rotary reaction device for iron removal from low-grade nickel laterite ore by means of sulfuric acid pressure leaching, comprising: a reactor barrel, a thermal expansion device, a rotary joint and a drive mechanism; one end...
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WO/2020/090690A1 |
This method is for treating a lithium ion secondary battery positive electrode active substance waste product that contains cobalt, nickel, manganese and lithium, and involves: a carbon mixing step in which a powder-form positive electro...
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WO/2020/093041A1 |
Provided are processes for extracting nickel and lithium from a Nickel(II)/Lithium(I) (Ni2+/Li+) solution. The process for extracting nickel and lithium includes providing a Ni2+/Li+ solution comprising an amount of lithium and an amount...
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WO/2020/092157A1 |
Processes are described for extracting metals from a combination derived from spent lithium-ion batteries and comprising such metals, a liquid, an acid, and other components.
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WO/2020/086000A1 |
Disclosed herein is a method of recovering lithium or sodium from an active material of a lithium or sodium ion battery. In a preferred embodiment, the method comprises a redox-targeting reaction of a used active material LiFeP04 with a ...
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WO/2020/085219A1 |
Provided is a method for selecting a mineral containing arsenic. A peptide having the following amino acid sequence: (TSNQ)-(LIVFA)-(ED)-(RKNMDCPQSETGWHY)-(LIVFA)-(RKNMDCPQSETGW
HY)-(LIVFA)-(LIVFA)-(LIVFA)-(RHK)-(TSNQ)-(TSNQ) [wherein an...
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WO/2020/078928A1 |
The facility for separating a multivalent cationic species, from a solution comprising this multivalent cationic species and lithium, comprises a capturing device (3) which has an inlet (2) and an outlet (4). The capturing device (3) com...
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WO/2020/080035A1 |
Provided is a method for removing manganese in which manganese-oxidizing bacteria are used, wherein the method involves stably and efficiently removing manganese from drainage water or another such aqueous solution that contains manganes...
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WO/2020/078779A1 |
The present invention relates to a process for the recovery of transition metals from batteries comprising treating a transition metal material with a leaching agent to yield a leach which contains dissolved copper impurities, and deposi...
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WO/2020/077026A1 |
Disclosed are reagent compositions for metal solvent extraction and methods of preparation and use thereof. In certain embodiments, the disclosure relates to recovering metal values from an aqueous process stream using solvent extraction...
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WO/2020/073079A1 |
A method to produce a brine from mixed alum salts, the method comprising the steps of: (i) Dissolving or pulping alum salts (1) containing rubidium alum, cesium alum and/or potassium alum in water or a recycled liquor and adding a neutra...
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WO/2020/077028A1 |
Disclosed are leaching aids and methods of using the leaching aids. The leaching aids can include one or a combination of compounds. The methods of using the leaching aids can include a process of recovering metal from ore, for example, ...
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WO/2020/073410A1 |
A method for resin extraction of nickel and cobalt from low-grade laterite nickel ore leaching liquid, comprising the following steps: (1) subjecting low-grade laterite nickel ore leaching liquid to copper removal resin column adsorption...
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WO/2020/073411A1 |
A method for extracting nickel, cobalt, and iron from a low-grade laterite nickel ore: respectively treating a transitional layer laterite nickel ore and a limonite layer laterite nickel ore, the iron grade of an iron ore concentrate pro...
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WO/2020/075152A2 |
A composition comprising diethyl carbonate and an ingredient selected from the group consisting of paints, dyes, coatings, inks, adhesives, resins, agricultural formulations, personal care formulations, fuels and pharmaceutical compositi...
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WO/2020/070654A1 |
The present invention relates to a method for the recovery of palladium from an aqueous solution, comprising the steps of: (A) providing a dispersion comprising an aqueous dispersing phase comprising palladium(II), at least one non-ionic...
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WO/2020/069539A1 |
A cascade of processing vessels (10) each having an inlet (24) at its lower part and a launder (28) at its upper part, each vessel (10), other than the first, having a feed pipe (34) leading from a launder (28) of the previous vessel (10...
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WO/2020/061639A1 |
A method for recovering NiSO4.6H2O crystals from a nickel rich organic phase is provided. The method includes contacting a nickel rich organic phase with an aqueous strip solution of sufficient H2SO4 concentration to extract nickel from ...
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WO/2020/063035A1 |
A method for enriching scandium, comprising the following steps: S1, extracting scandium from a scandium-containing inorganic acid solution using an organic extractant or an organic solvent solution containing an organic extractant to ob...
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WO/2020/062954A1 |
Disclosed is a method for preparing submicron scandium oxide, comprising: subjecting a mixed solution of a first carboxylic acid extractant and an organic solvent to a first saponification reaction with ammonia water to obtain a first wa...
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