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Patent Searching and Data


Matches 351 - 400 out of 7,075

Document Document Title
WO/2012/104246A1
The invention relates to a process for recovering at least one platinoid element contained in an acidic aqueous solution comprising chemical elements other than said platinoid element, said process comprising the following steps: - a ste...  
WO/2012/104717A1
A method and apparatus are provided for conducting a microbiological process on a bulk material in which a quantity of the bulk material is loaded onto a waterproof lining forming part of a bio cell with a heat transfer arrangement below...  
WO/2012/102265A1
Provided is a process for producing an ore slurry which has low yield stress to an extent that the ore slurry can be transferred even when the concentration of the ore slurry is high and which does not undergo any problem associated with...  
WO/2012/102384A1
The present invention provides a valuable metal leaching method and a valuable metal collection method, in each of which the leaching of a valuable metal can be achieved with high efficiency, the amount of a reducing agent to be used can...  
WO/2012/100293A1
A method of selectively leaching a metal such as nickel from an ore or ore processing intermediate comprising the metal and cobalt. The ore or ore processing intermediate is contacted with an acidic leach solution comprising an amount of...  
WO/2012/098459A1
A polymeric compound is provided having the general formula (A) wherein R is an alkyl chain preferably having from 1 to 6 carbon atoms in the chain which may be either saturated or unsaturated and may have substituents attached to the ch...  
WO/2012/098783A1
A method for leaching copper from a copper sulfide ore is provided in which the operation cost and the environmental burden are satisfactorily reduced. The method for leaching copper from a copper sulfide ore comprises supplying a first ...  
WO/2012/098126A3
The invention relates to the obtainment of one or more element(s) and/or element compound(s), especially rare-earth metals or compounds thereof, from intermediate products or by-products obtained during the production of titanium dioxide...  
WO/2012/093170A1
The main subject-matter of the present invention is a process for the dissolution of at least one element chosen from niobium and tantalum and at least one other element chosen from uranium and the rare earth elements, advantageously for...  
WO/2012/092234A1
This invention relates to a process that utilizes high-temperature oxidation with controlled stoichiometry in the concentration of vanadium from carbonaceous feedstock materials containing vanadium, such as residues, ashes and soots resu...  
WO/2012/091125A1
Provided are a method for collecting precious metals from a solution containing precious metal ions, an extractant or adsorbent used therefor, and a back extractant or a desorbent. Precious metals are obtained by subjecting a solution co...  
WO/2012/088212A3
The disclosure provides to a PDC element protective system including a mask configured to protect a non-leached portion of a leached polycrystalline diamond compact (PDC) element during a leaching process. The mask may be formed from or ...  
WO/2012/088212A2
The disclosure provides to a PDC element protective system including a mask configured to protect a non-leached portion of a leached polycrystalline diamond compact (PDC) element during a leaching process. The mask may be formed from or ...  
WO/2012/083583A1
Disclosed is a method for extracting tungsten from scheelite, which comprises: introducing mixed acid consisted of sulfuric acid and phosphoric acid into a decomposition reactor, heating to 70-100℃, and then adding scheelite, maintaini...  
WO/2012/080988A3
The invention is suitable for use in metal and nonmetal mining and, in general, in any area of operation containing Sb and Bi in solution in an electrolyte based mainly on sulfuric acid. The system consists in contacting: solid lead diox...  
WO/2012/081897A3
The present invention relates to a method for enriching ferronickel to a high density from a raw material containing nickel and iron, and more particularly comprising: a step of slurrifying for reducing the raw material containing nickel...  
WO/2012/080988A4
The invention is suitable for use in metal and nonmetal mining and, in general, in any area of operation containing Sb and Bi in solution in an electrolyte based mainly on sulfuric acid. The system consists in contacting: solid lead diox...  
WO/2012/079130A1
A process for extracting a target metal ion from an aqueous feedstock containing, inter alia, the target metal ion. The process comprises providing said feedstock and contacting the feedstock with a room temperature ionic liquid (RTIL) t...  
WO/2012/079129A1
Disclosed is a process for extracting gold ions from an aqueous phase containing gold ions. The process comprises contacting the aqueous phase with an extractant phase consisting of or comprising an ionic liquid (IL) under liquid-liquid ...  
WO/2012/080659A2
The present invention relates to a system (1) and to a method for collecting chemical compound(s) in aggregate (S), characterized in that it comprises at least one surface on which is placed at least one geocomposite (2) comprising at le...  
WO/2012/081953A1
The invention relates to the mining industry, for the treatment of minerals containing copper. The invention specifically relates to an oxidative process for extracting copper from refractory mineral phases containing copper. The advanta...  
WO/2012/080659A3
The present invention relates to a system (1) and to a method for collecting chemical compound(s) in aggregate (S), characterized in that it comprises at least one surface on which is placed at least one geocomposite (2) comprising at le...  
WO/2012/081896A3
The present invention relates to a method for effectively recovering nickel from a raw material containing nickel, and comprises: a reduction step for reducing the raw material containing nickel at a temperature between 550-950℃, using...  
WO/2012/081645A1
The purpose of the present invention is to improve the recovery rate of a positive-pole active substance and to prevent valuable metal recovery loss when the positive-pole active substance is separated from a lithium ion battery. By mean...  
WO/2012/081896A2
The present invention relates to a method for effectively recovering nickel from a raw material containing nickel, and comprises: a reduction step for reducing the raw material containing nickel at a temperature between 550-950℃, using...  
WO/2012/079111A1
1. A method for the heap leaching of manganese-containing ores, the method characterised by the steps of: (i) beneficiating the manganese-containing ore and separating into a coarse fraction and a fine ore fraction; (ii) combining the fi...  
WO/2012/081897A2
The present invention relates to a method for enriching ferronickel to a high density from a raw material containing nickel and iron, and more particularly comprising: a step of slurrifying for reducing the raw material containing nickel...  
WO/2012/075596A1
The invention relates to a method for leaching copper oxide without using sulfuric acid, comprising the following steps consisting in: impregnating the copper oxide using a non-polluting organic leaching agent consisting of an aqueous so...  
WO/2012/078772A3
A continuous elution system 100 comprises, in accordance with some embodiments of the invention, a first vessel 200 having a first inlet 204, a second inlet 208, and a first outlet 212; a second vessel 300 having a third inlet 304 and a ...  
WO/2012/076981A1
A method and system are provided in which a gold and/or silver-collecting resin-in-leach or resin-in-pulp circuit comprises both co-current and counter-current sections, specifically in thiosulfate leach systems.  
WO/2012/078019A4
The present invention pertains to the mining industry and to the processing of minerals and materials containing gold and silver. More specifically, it relates to a method for recovering gold and silver from copper thiosulphate solutions...  
WO/2012/078019A2
The present invention pertains to the mining industry and to the processing of minerals and materials containing gold and silver. More specifically, it relates to a method for recovering gold and silver from copper thiosulphate solutions...  
WO/2012/078532A1
Porous leach pipe and method for leaching metals from mining ores. The porous pipe may be buried beneath the surface of a pile of mined ore, providing a more even and uniform distribution of the leaching solution across the pile, increas...  
WO/2012/078020A3
A method for leaching valuable metals from ore or one or more minerals that do not oxidise easily and can be reduced, comprises reducing the ore or one or more minerals in contact with an acid medium with complexing agents for sulphur an...  
WO/2012/075521A1
An improved micronutrient fertiliser comprising leach tailings from a sulphur dioxide leach process for the recovery of manganese or manganese sulphate products and a method for the production of such an improved micronutrient fertiliser...  
WO/2012/078019A3
The present invention pertains to the mining industry and to the processing of minerals and materials containing gold and silver. More specifically, it relates to a method for recovering gold and silver from copper thiosulphate solutions...  
WO/2012/071640A1
The present invention relates to a novel method for producing high-purity metallurgical-grade silicon metal by leaching silicon metal and then purifying same in subsequent steps. Said method, which is the subject matter of the present pa...  
WO/2012/068639A1
A method of extracting an alkali metal and/or an alkaline earth metal from a mineral including an alkali metal and/or an alkaline earth metal, or a rock containing the mineral, the method including contacting the mineral, with an aqueous...  
WO/2012/068621A1
A process for recovering zinc from a zinc containing material, the process including the steps of: leaching the zinc containing material with an alkaline lixiviant which includes an ammonium species, a hydroxide species and a halide spec...  
WO/2012/068620A1
A process for recovering zinc from a zinc containing material, the process including the steps of: leaching the zinc containing material with an alkaline lixiviant comprising an aqueous mixture of NH3 and NH4CI, or ionic equivalent, havi...  
WO/2012/069573A1
The present invention relates to a process that makes it possible to separate the americium present in an acidic aqueous phase or in an organic phase from other metallic elements that are also found in this phase, by complexing the ameri...  
WO/2012/070769A1
Disclosed is a method for adsorbing/desorbing lithium ions, which can attain an adsorption rate of 65±5% and a desorption rate of 95±3% by performing an absorption process and a desorption process using a CCD process. According to the ...  
WO/2012/069625A1
The present invention relates to a process for selectively removing molybdenum from a solution which contains molybdenum, said process comprising the following steps: ■ bringing the solution to an acid pH lower than or equal to 3, pref...  
WO/2012/069703A1
A pump (1) for mixing two or more mutually insoluble liquid phases together into a dispersion and for feeding the dispersion into a mixer (2) and on into a solvent extraction settler (3). The inner space of the blade wheel housing (12) i...  
WO/2012/068668A1
There is provided a hydrometallurgical process of recovering indium and gallium values from mixtures thereof with other metal values for example recycled and scrap solar panel cells which comprises subjecting the mixture to strongly oxid...  
WO/2012/070193A1
The purpose of the present invention is to provide a valuable metal collection method for collecting a metal from a lithium ion battery using a relatively simple facility without employing any complicated process. In the present inventio...  
WO/2012/065361A1
Provided are a method and a supporting device for separating lithium from magnesium and enriching lithium in salt lake brine. The method comprises the following steps: separating an electrodialysis device into a lithium salt chamber (5) ...  
WO/2012/065361A4
Provided are a method and a supporting device for separating lithium from magnesium and enriching lithium in salt lake brine. The method comprises the following steps: separating an electrodialysis device into a lithium salt chamber (5) ...  
WO/2012/065406A1
A method for balancing iron by producing iron vitriol in bio-metallurgy process involves adjusting and optimizing the parameters, such as temperature in the heap,pH in the leaching liquid and the concentration of iron, during the heap bi...  
WO/2012/065253A1
There is provided a method for extracting aluminum ions from aluminous ores, such as argillite. The process comprises leaching the argillite with an acid such as HCI so as to obtain a composition comprising the aluminum ions and iron ion...  

Matches 351 - 400 out of 7,075