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Matches 151 - 200 out of 10,249

Document Document Title
WO/2019/213694A1
A method of leaching copper-containing ores includes leaching copper-containing ores or concentrates or tailings of the ores or concentrates with a leach liquor in the presence of an additive that enhances the dissolution of copper from ...  
WO/2019/210368A1
A method for the precipitation of rare earth sulphate, the method including subjecting a crude rare earth sulphate solution to precipitation in the presence of a water soluble, volatile, organic compound to produce a rare earth sulphate ...  
WO/2019/210351A1
A process for the processing of mica rich minerals, the process comprising passing an ore or concentrate (1) containing a mica rich mineral to a pre-treatment phase, the pre-treatment phase including a size separation step (20) to produc...  
WO/2019/210350A1
A process for the processing of silicate minerals, the process comprising passing an ore or concentrate (1) containing a silicate mineral to a pre-treatment phase, the pre-treatment phase including a size separation step (20) to produce ...  
WO/2019/211318A1
The present invention relates to a method for dissolving, recovering, extracting or separating precious metals. Efficient recovery of precious metals from industrial spent catalysts through electrochemical means using dilute acid/acid-fr...  
WO/2019/210810A1
Disclosed is a method for clean metallurgy of molybdenum, comprising the steps of: 1) leaching a calcified molybdenum calcine, which is obtained by roasting molybdenite with the addition of calcium, by using an inorganic acid, to obtain ...  
WO/2019/210367A1
A method of processing a purified rare earth sulphate solution, the method including the steps of: contacting the purified rare earth sulphate solution with sodium hydroxide to precipitate rare earths as rare earth hydroxide, including t...  
WO/2019/206755A1
The present invention relates to a method for the biological recovery of metals in electric and electronic waste, which comprises a) introducing a series of iron-oxidizing microorganisms and a mineral medium into a reactor (10); b) perfo...  
WO/2019/207075A1
A process for treating a water stream, preferably originating from a ore mining process, containing cyanide, metallic ions and stable metal-cyanide complexes having a stability constant K characterized by a logK at 25°C greater than 20,...  
WO/2019/147322A3
Described are methods and compositions for processes of preparing a radioactive solution of Sn-117m tetraiodide. Aspects include reacting a radioactive solid Sn containing Sn-117m with a solution of I2 in an organic solvent at a temperat...  
WO/2019/202201A1
X-ray fluorescence analyzer system comprises an X-ray tube (402),a slurry handling unit (201),and a crystal diffractor (601) located in a first direction from said slurry handling unit (201). The crystal diffractor (601) separates a pred...  
WO/2019/203778A1
The invention relates to the mining industry. A method of decontaminating technogenic wastes and tailings after vat or heap leaching of raw material and preparing the raw material for enrichment and/or extraction of metals comprises mixi...  
WO/2019/202198A1
An X-ray fluorescence analyzer comprises an X-ray tube (402) for emitting incident X-rays (206) in the direction of a first optical axis (204). A slurry handling unit (201) is configured to maintain a constant distance between a sample (...  
WO/2019/202199A1
An X-ray fluorescence analyzer comprises an X-ray tube (402) for emitting incident X-rays (206) in the direction of a first optical axis (204). A slurry handling unit (201) is configured to maintain a constant distance between a sample (...  
WO/2019/203680A1
The invention relates to the field of non-ferrous metallurgy, in particular to a method for processing laterite nickel ores with recovery of nickel and cobalt. In a method involving grinding of the ore, roasting of the ore in a reducing ...  
WO/2019/202197A1
An X-ray fluorescence analyser comprises an X-ray tube (402) for emitting incident X-rays (206) in the direction of a first optical axis (204). A slurry handling unit (201) is configured to maintain a constant distance between a sample (...  
WO/2019/201582A1
A robust and economically viable process technology is developed for the recycling of critical rare earth elements (REEs) from end of life lamp fluorescent powder (FP) e-waste. This is one of the first efforts to recycle individual pure ...  
WO/2019/201919A1
The present invention relates to a method and apparatus for the dissolving one or more basic salts contained in fly ash in a mineral acid with aim of extracting one or more metals present in the fly ash in a downstream processing. The ad...  
WO/2019/203667A1
This invention provides the extraction of precious metals using enhanced gravity concentration-flotation processes of extracting the metals from the ore. Moreover, wastewater from the extraction stage is treated before being discharged t...  
WO/2019/197192A1
Process for the recovery of transition metal from spent lithium ion batteries containing nickel, wherein said process comprises the steps of (a) heating a lithium containing transition metal oxide material to a temperature in the range o...  
WO/2019/197792A1
The invention relates to new optimized amphiphilic asymmetrical diglycolamides suitable for use as rare earth metal extracting agents. Said diglycolamides have general formulae (I) and (II), where: R1 = a linear or branched C2 to C4 alky...  
WO/2019/193042A1
The invention relates to a multi-step method for the selective, environmentally friendly and economical recovery of non-ferrous metals from industrial wastewater. The method is based on the principle of the complexing of the non-ferrous ...  
WO/2019/193403A1
The present invention relates to an autocatalytic reductive chemical procedure with solid-solid interaction in conditions of supersaturation of salts, via the phenomenon of efflorescence in order to dissolve a copper metal, from a metall...  
WO/2019/194687A1
This invention provides the extraction of precious metals using an enhanced chlorination process. This is done through a variation of the chlorination process that utilizes chloride to oxidize sulfides, which physically lock the gold com...  
WO/2019/193413A1
A method for supercritical fluid extraction of metal from a source, the method comprising: providing a reactor chamber; providing a source comprising a target metal; optionally, providing a chelating agent; providing a solvent; adding th...  
WO/2019/187407A1
Provided is a novel use application of 5-methyl-2-hexanone. An extraction agent for metals contains 5-methyl-2-hexanone as an active ingredient, and can be used for the extraction of a chlorine complex or a fluorine complex of a metal ca...  
WO/2019/188708A1
Provided is a method for recovering a platinum group element from a water-soluble polymer on which a platinum group element is adsorbed, wherein the method is provided with a preparation step for preparing a hydrochloric acid aqueous sol...  
WO/2019/186478A1
A process for the dissolution of a metallic element from a metal-bearing source material, said process including the steps of dissolving the metallic element from a metal-bearing source material with an acidified ferric chloride solution...  
WO/2019/190301A1
Described as a method for recovering lithium from clay, which comprises: (a) providing a quantity of clay that has a content of muscovite and sanidine clay; (b) separating the clay particles that have a particle size of less than 20 µm,...  
WO/2019/180642A1
The present invention provides a method for the selective recovery of tin from a tin- containing material, preferably the electronic scrap, and particularly printed-circuit boards, the method comprising pretreatment of the tin-containing...  
WO/2019/181088A1
In a used plating medium, a metal surface layer is dissociated from a core and dissolved with an acid to thereby give an aqueous mixed metal solution 13 containing Ni ions 9 and Sn ions 11. Then, the aqueous mixed metal solution 13 is pa...  
WO/2019/175838A1
A process for controlling iron within a hydromet solution and/or removing iron from a hydromet solution containing a dissolved metal value comprises seeding the hydromet solution with a seed precipitate material comprising iron. Seeding ...  
WO/2019/174103A1
A method for producing nickel sulfate and cobaltous sulfate by purification of a laterite nickel ore sulfuric acid leaching solution and silica gel chelate resin, comprising: 1) grinding laterite nickel ores (limonite type, transition la...  
WO/2019/176175A1
Provided is a solvent extraction method capable of selectively separating magnesium from an acidic aqueous solution of sulfuric acid. This solvent extraction method is for extracting magnesium in an organic solvent by bringing an acidic ...  
WO/2019/178051A1
Materials and methods for precious metal recovery are disclosed. Usable leaching solutions may be aqueous based and include appropriate materials in sufficient quantities to solubilize and stabilize precious metals. Such materials typica...  
WO/2019/172392A1
Provided is a method for increasing Ni yield of a sulfide product and lowering iron grade F. This method comprises: step (S10) for subjecting a Ni/Co-containing aqueous sulfuric acid solution (1) to a sulfurization reaction with H2S gas ...  
WO/2019/168941A1
The present invention relates to the extraction of lithium from liquid resources such as natural and synthetic brines, leachate solutions from clays and minerals, and recycled products. For the extraction of lithium from the liquid resou...  
WO/2019/165560A1
A method of selectively oxidizing one or more target metals in an alloy comprising target and non-target metals is provided. The method comprises the steps of: i) melting the alloy and exposing the molten alloy to simultaneous fragmentat...  
WO/2019/169185A1
The present invention relates to use of alkysulfonic acids, with optionally an oxidant peroxide to leach copper from copper sulfide minerals or copper concentrates, a dichromate oxidant or a nitrate oxidant, or a combination thereof.  
WO/2019/163284A1
Provided is a method for recovering highly pure scandium by effectively and economically efficiently removing iron from an acidic solution containing scandium while reducing loss. The scandium recovery method according to the present inv...  
WO/2019/161447A1
A process is described for the recovery of manganese sulphate and manganese oxides from manganese-bearing feedstocks, comprising leaching the feed material in sulphuric acid, followed by selective crystallisation of manganese sulphate he...  
WO/2019/161448A1
A method is disclosed for the recovery of nickel, copper and cobalt as pure salts from mixtures of these metals, and especially when the ratio of the individual metals to each other in the feed solution is less than five (5), and close t...  
WO/2019/163285A1
Provided is a more economical method for obtaining a concentrated scandium solution from an acidic solution containing scandium by means of an ion exchange treatment that uses a chelating resin. This method is suppressed in deterioration...  
WO/2019/160982A1
The present invention relates to the extraction of lithium from liquid resources, such as natural and synthetic brines, leachate solutions from clays and minerals, and recycled products.  
WO/2019/149293A1
The alunite ore processing method consists of crushing, grinding and flotation of raw alunite ore. The enriched alunite ore is roasted at 520 to 620 °C, the roasting time is 1 to 3 hours. The roasted alunite is leached with 5 to 20 % so...  
WO/2019/150005A1
The present invention relates to a process for processing a leach solution of black mass of spent alkaline batteries which leach solution (14) includes metals dissolved to an acidic solution and in which process one or more elements (49)...  
WO/2019/152738A1
An aluminum alloy composition is provided. The aluminum alloy composition may include from 20 to 600 ppm Fe and from 10 to 800 ppm Mn. A ratio of Fe (ppm)-to-Mn (ppm) in the aluminum alloy composition may be from 0.25:1 to 7:1.  
WO/2019/150403A1
The present invention concerns a method for treatment of lithium batteries and recovery of the metals contained therein comprising the following steps: - completely discharging the single cells by immersion in a conductive solid material...  
WO/2019/150198A1
Materials and methods for precious metal recovery are disclosed. An aqueous-based leaching solution is disclosed comprising an iodide salt material; an iodate salt material, a chlorite salt material, or any combination thereof; and phosp...  
WO/2019/149698A1
The invention relates to a method for recycling lithium batteries, comprising the steps of: (a) breaking down a comminution product (10), which contains comminuted constituent parts of electrodes of lithium batteries, with concentrated s...  

Matches 151 - 200 out of 10,249