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Matches 1 - 50 out of 9,573

Document Document Title
WO/2019/109159A1
The focus of the invention is exclusively on ROM fractions of less than 50 microns from existing processes for recovering minerals, such as flotation, magnetic separation and gravity concentration, or for reprocessing waste product and s...  
WO/2019/111698A1
[Problem] The present invention pertains to a method for extracting a vanadium component included in combustion fly ash, clinker, etc., and producing a vanadate. [Solution] A method for producing a vanadate in which a vanadium component ...  
WO/2019/107429A1
The metal recovery agent according to the present disclosure contains at least one selected from guanidine, guanidine carbonate, guanidine hydrochloride, guanidine nitrate, guanidine sulfate, and guanidine chloride. The metal recovery li...  
WO/2019/102652A1
Provided is a dezincification system for aqueous nickel sulfate solutions, which is capable of stably maintaining the zinc content in a nickel/cobalt mixed sulfide low. This dezincification system for aqueous nickel sulfate solutions is ...  
WO/2019/100673A1
Disclosed is a method for the selective nitric acid leaching of lithium elements in an aluminum electrolyte, comprising the following steps: S1. pulverizing and sieving an aluminum electrolyte containing lithium elements; S2. mixing nitr...  
WO/2019/090759A1
A method and apparatus for removing iron from a hydrometallurgical iron-containing solution. The method comprises the following steps: adding a hydrometallurgical iron-containing solution to a reactor by means of a first homogenizing dis...  
WO/2019/093053A1
Provided is a leaching treatment method for nickel oxide ore, which is capable of effectively reducing the usage of sulfuric acid, while maintaining the high nickel leaching rate. A leaching treatment method according to the present inve...  
WO/2019/094674A1
A process for recovering valuable products from ore containing boron and lithium, such as jadarite ore, includes an acid digestion step and downstream steps that recover valuable boron-containing and lithium-containing products.  
WO/2019/090389A1
A process for producing high purity nickel sulfate, preferably having a purity of ≥99.8%, more preferably ≥99.98%, suitable for use in battery manufacture or nickel plating is described. The process involves selectively removing non-...  
WO/2019/084669A1
A process for recovering copper from heap leach residues containing residual copper, includes identifying a production zone within the heap leach residues for secondary leaching, drilling wells into the heap at locations suitable for del...  
WO/2019/085507A1
Disclosed is a production method for extracting chromium by mixing and calcinating a chromium-containing material, wherein the chromium is extracted by a procedure involving uniformly mixing a chromium ore, sodium carbonate and a clinker...  
WO/2019/088815A1
The present invention relates to a vertical low-pressure reactor with stirred tank for leaching polymetal minerals and concentrates of lead, copper, zinc, iron and/or the mixtures thereof, in a solid-gas-liquid three-phase suspension sys...  
WO/2019/081432A1
A process is divulged for the recovery of metals from a metal-bearing material containing, in oxidized form, more than 1% of Co, a total of Co and Ni of more than 15%, and more than 1% Mg, comprising the step of: - smelting said metal-be...  
WO/2019/082533A1
Provided is a method for separating copper, nickel, and cobalt, the method being capable of efficiently and selectively separating copper, nickel, and cobalt from alloys containing copper, nickel, and cobalt, such as highly corrosive all...  
WO/2019/082532A1
Provided is a method for separating copper from nickel and cobalt with which it is possible to selectively and efficiently separate copper, as well as nickel and cobalt, from an alloy including copper, nickel, and cobalt such as an alloy...  
WO/2019/077032A1
The invention relates to a process of isolating samarium from a hydrophilic composition comprising nitrate ions, europium and samarium, by reducing europium(III) to europium(II) in this hydrophilic composition, and by extracting the sama...  
WO/2019/078735A1
The invention relates to a method for recovering precious metals from electronic waste. In particular, biometallurgical techniques are utilised during the process. In a first aspect, the invention provides a method of recovering one or m...  
WO/2019/071788A1
A manufacturing method using a copper and iron containing mixing slag. The manufacturing method comprises the following steps: S1, slag mixing: putting a copper slag into a smelting reaction device, adding one or more of a lead smelting ...  
WO/2019/071349A1
Systems and methods of producing potassium sulfate can involve converting a mixed salts feed stream into a conversion end slurry in a conversion unit, the mixed salts feed comprising at least one potassium-containing salt, at least one c...  
WO/2019/064709A1
Provided is a gold leaching method for leaching gold included in raw material that includes sulfide minerals or gold and sulfur as a refining intermediate obtained by refining treatment of sulfide minerals, wherein the gold leaching meth...  
WO/2019/064996A1
Provided is a method for separating copper from nickel and cobalt, which is capable of efficiently and selectively separating copper, and nickel and cobalt from an alloy containing copper, nickel and cobalt such as a highly anticorrosive...  
WO/2019/060961A1
A process for recovery of one or more elements, selected from precious metals and chalcophile metals as herein defined, from materials containing precious and/or chalcophile metal/s, said process including: (i) a leaching step comprising...  
WO/2019/057664A1
The invention relates to a species of genus Pseudomonas identified as Pseudomonas BR11571, termed Candidatus Pseudomonas metallosolvens, having Accession Deposit Number DSM 32538.  
WO/2019/058327A1
A process for nickel concentration and extraction from non-sulfidic iron-bearing nickeliferous resources is disclosed. The process includes an atmospheric acid-based leaching treatment of the non-sulfidic iron-bearing nickeliferous resou...  
WO/2019/055766A1
Compositions and methods are provided that provide recovery of metals such as copper, nickel, cobalt, indium, and other metals are recovered from mine tailings, in situ ore bodies, or postconsumer waste. An amine-containing lixiviant is ...  
WO/2019/053148A1
The invention relates to a method for extracting at least one metal contained in a sample comprising a mixture of metal salts from at least two different metals, comprising the successive steps of: a) contacting the sample, in a grinding...  
WO/2019/049593A1
Provided is a wet metallurgy method for a nickel oxide mineral ore, the method being capable of effectively increasing the pH of a processing liquid and capable of efficiently facilitating a sulfurization reaction using the processing li...  
WO/2019/048790A1
The present invention concerns a method for separating palladium from other metal elements contained in an aqueous nitric phase, consisting of (i) placing an aqueous nitric phase containing, in addition to palladium, at least one other m...  
WO/2019/050472A1
There is provided a method of producing a nanomaterial, the method comprising adding an alkaline earth metal salt to a leaching solution containing vanadate ions to form a mixture, the leaching solution being derived from a vanadium sour...  
WO/2019/048789A1
The present invention relates to a method for recovering palladium from a nitric aqueous phase comprising a nitric acid concentration of at most 3 mol.L-1 and which contains, in addition to the palladium, at least one other metal cation ...  
WO/2019/046027A1
A method of selectively removing scandium from a scandium and fluoride-containing feed material includes providing the scandium-containing feed material, acid leaching the scandium-containing feed material with at least one acid in a pre...  
WO/2019/046616A1
The present disclosure provides fluorinated crown ethers. The fluorinated crown ethers have one or more pendant fluorinated groups (e.g., thioether groups with a terminal fluorinated group). The fluorinated crown ethers have desirable so...  
WO/2018/236240A8
The invention relates to the field of metallurgy of rare metals, more particularly to a method for recovering scandium from red mud, the waste generated in alumina production. The method comprises repulping red mud, sorption leaching sca...  
WO/2019/043244A1
A process is described for the recovery of the chemical components of the "black paste" resulting from the opening of dead alkaline and zinc-carbon batteries.  
WO/2019/045161A1
Presented is a method for economically smelting nickel from nickel laterite ores by a combination of wet and dry processes, comprising the steps of: preparing a dissolution solution by dissolving, in a strong acid, a hydroxide mixture co...  
WO/2019/033154A1
A process for recovery of one or more elements, selected from precious metals and chalcophile metals, as herein defined, from materials containing precious and/or chalcophile metal/s, said process including: (i) contacting the material w...  
WO/2019/034631A1
The present invention relates to a new solvent extraction process for the extraction of rare earth elements and the separation of a mixture of rare earth elements into the individual rare earth elements. Said process comprises the extrac...  
WO/2019/035319A1
A leaching treatment method of nickel oxide ore is provided which enables effectively reducing the amount used of sulfuric acid while maintaining a high nickel leaching rate. In this leaching treatment method, leaching treatment is perfo...  
WO/2019/028497A1
A process is disclosed for the recovery of a metal from a pyrite-bearing material. The process comprises thermally decomposing the pyrite-bearing material so as to produce a material comprising pyrrhotite (FeS). The process also comprise...  
WO/2019/029615A1
A method for cleanly producing vanadium trioxide by a vanadium-containing solution, comprising: adding sulfuric acid to the vanadium-containing solution, wherein the molar ratio of sodium ions to sulfate radicals in the vanadium-containi...  
WO/2019/026977A1
This sodium removal method is a method for removing sodium from a sodium-containing solution by precipitating sodium ions in the sodium-containing solution as a sodium salt, the method having a sodium precipitation step for reducing the ...  
WO/2019/025714A1
The invention relates to bifunctional compounds which have a thiophosphine function and which are capable of highly effectively extracting uranium(VI) from an aqueous solution of phosphoric acid, and do so with a high selectivity with re...  
WO/2019/026978A1
This method for dissolving a lithium compound comprises bringing a lithium compound into contact with water or an acid solution and supplying carbonate ions to the water or acid solution to generate carbonic acid, and reacting the lithiu...  
WO/2019/023735A1
Contemplated is a sensor system for use with a measuring device. The measuring device being of the type adapted to measure the volume of a desired solid component in a sample volume of a solid-liquid slurry obtained from either a carbon-...  
WO/2019/027932A1
In embodiments, pressurized fluid containing reagents of formulated -mixtures of solids, liquids and gasses are delivered into a cased well then into the heap or pile to open or stimulate, new horizontal and vertical fluid pathways, chan...  
WO/2019/022555A1
The present invention provides a method for selective recovery of a valuable metal from a waste denitrification catalyst through alkali fusion, the method comprising the steps of: (a) adding an alkali metal to a waste denitrification cat...  
WO/2019/022320A1
One embodiment of the present invention relates to a method for extracting rare metal elements, comprising: a first step of preparing an extraction filtrate by reacting coal ash and an extraction solvent, which includes a halogen acid; a...  
WO/2019/016610A2
Materials and methods for precious metal recovery are disclosed. Usable leaching solutions are preferably aqueous based and include appropriate materials in sufficient quantities to solubilize and stabilize precious metal. Such materials...  
WO/2019/016610A3
A method for generating an aqueous-based leaching solution for precious metal is disclosed, comprising: combining iodide salt material, carboxylic acid material, and water in an agitated tank, thereby producing a first mixture; passing t...  
WO/2019/015518A1
Provided is an apparatus for continuous decomposition of rare earth concentrate. The apparatus comprises: a body, which has a feed port, two liquid feeding ports, and two tail gas outlets at the top and two discharge ports at the bottom,...  

Matches 1 - 50 out of 9,573