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Matches 551 - 600 out of 7,302

Document Document Title
WO/2011/094858A1
The present invention describes a process and system for recovering titanium dioxide and other value metals from a titanium bearing solid. The process comprises (a) leaching the solid in hydrochloric acid to produce a leachate comprising...  
WO/2011/095679A1
The invention relates to a method for the selective recovery of uranium from a sulphate-based acidic aqueous solution of uranium containing iron and other metals by means of solvent extraction, in which the extractant used in the organic...  
WO/2011/090086A1
"Urban ore" contains a plurality of metallic elements intermingled with one another, and given metallic elements are required to be separately recovered therefrom. However, the content of each element is very low, and it has been extreme...  
WO/2011/085438A1
A process for the production of electrolytic manganese dioxide, the process comprising the method steps of: (i) Reducing a manganese dioxide containing ore to produce a manganese oxide product; (ii) Leaching the manganese oxide product w...  
WO/2011/082453A1
The present invention provides apparatus for the production of a uranium yellowcake from a uranium peroxide precipitate, the peroxide precipitate being in the form of a low solids content, uranium rich feed slurry, the apparatus includin...  
WO/2011/082444A1
1. A process (10) for the production of lithium carbonate, the process characterised by the steps of: (i) Calcining (20) an alpha-spodumene ore or concentrate (12) to produce beta-spodumene; (ii) Sulphating (28) the beta-spodumene at ele...  
WO/2011/081576A2
The invention relates to a process and device for producing radionuclides and can be used for the production of Мо-99. The production of Мо-99 comprises filling a solution reactor with a fuel solution of uranyl sulfate, bringing the ...  
WO/2011/081576A3
The invention relates to a process and device for producing radionuclides and can be used for the production of Мо-99. The process comprises filling a reactor with a fuel solution of uranyl sulfate, bringing the reactor up to power, pr...  
WO/2011/076739A1
The invention relates to a method making it possible to purify the uranium from a natural uranium concentrate. Said method includes: a) extracting the uranium, present in the form of uranyl nitrate, in an aqueous phase A1 resulting from ...  
WO/2011/077961A1
A substance for use in the collection of a metal, which can coordinately bind a metal to be collected to produce aggregates, and which is characterized by comprising a water-soluble polymer (polymer (B)) having an amino group and a water...  
WO/2011/076995A1
The invention relates to a method for treating the leaching residue containing iron and sulphur that is generated in the leaching of a sulphidic non-ferrous metal concentrate. The sulphur-containing leaching residue or part of it is rout...  
WO/2011/074948A1
The invention is directed to a process and apparatus for recovering metals, in particular for recovering metals from bottom ash from incineration plants, such as municipal waste incineration plants (4), In accordance with the invention, ...  
WO/2011/070219A8
The invention relates to a method and apparatus for mixing one or several solutions in a reactor (3) in conjunction with a hydrometallurgical process, such as precipitation, crystallisation or forming a suspension in solvent extraction. ...  
WO/2011/070219A1
The invention relates to a method and apparatus for mixing one or several solutions in a reactor (3) in conjunction with a hydrometallurgical process, such as precipitation, crystallisation or forming a suspension in solvent extraction. ...  
WO/2011/068859A1
A method of heap leaching including forming a heap lift, installing a horizontal solution collection system between the heap layers including a horizontal tubing with a wireline data collection tool disposed therein, providing a heap lea...  
WO/2011/067656A1
A method of producing enhanced coal combustion ash for use in pozzolanic applications or cement manufacture, in which the enhanced combustion ash has lower mercury content. A slurry is formed of the combustion ash and water and is subjec...  
WO/2011/063577A1
A method of washing anode slime from lead-bismuth alloy electrolysis is disclosed, wherein a lead fluorosilicate solution with high concentration can be obtained by using the anode slime from lead-bismuth alloy electrolysis as raw materi...  
WO/2011/061408A1
The invention relates to a method for removing chloride from zinc sulphate solution in conjunction with zinc production. According to the method, the chloride is removed from solution by means of monovalent copper, which is produced in a...  
WO/2011/058564A3
A process for production of minerals using an evaporation unit comprising an evaporation element for exposing thereof to the atmosphere for evaporation of a liquid solution therefrom. The evaporation element comprises an evaporation surf...  
WO/2011/059380A1
The present disclosure relates to a process for recovering a valuable metal from a sulfidic material. The process comprises subjecting the sulfidic material to a hydrometallugical step followed by selective removal of elemental sulful fr...  
WO/2011/056548A2
Disclosed is a process and system for removing metals from waste, particularly electronic waste (or "e- waste"). The process generally includes the steps of dissolving at least some of the metals from the waste and then causing at least ...  
WO/2011/056576A2
Disclosed is a process and system for removing metals from waste, particularly electronic waste (or "e- waste"). The process generally includes the steps of dissolving at least some of the metals from the waste and then causing at least ...  
WO/2011/056576A3
Disclosed is a system for removing metals from waste, particularly electronic waste (or "e- waste"). The process generally includes the steps of dissolving at least some of the metals from the wastein a nitric acid bath and then causing ...  
WO/2011/056548A3
Disclosed is a process and system for removing metals from waste, particularly electronic waste (or "e- waste"). The process generally includes the steps of dissolving in nitric acid at least some of the metals from the waste and then ca...  
WO/2011/049218A1
A method of molybdenum refining is provided, the method enabling high-purity molybdenum to be easily obtained in a high yield. The method of molybdenum refining is characterized by including a step in which molybdenum ore or a molybdenum...  
WO/2011/047477A1
A method of recovering copper from a copper sulfide concentrate comprising a copper arsenic sulfosalt or a copper antimony sulfosalt, using carbon as a catalyst. The concentrate and carbon are added to an acidic sulfate leach solution. T...  
WO/2011/048927A1
A wet smelting plant for nickel oxide ore that comprises a plurality of series of processing facilities is provided in which, even when a serious trouble occurred somewhere in the processing facilities, it is possible to minimize the red...  
WO/2011/041873A1
By appropriately designing a flash tube, spraying of abrasive on the vessel walls and impinging the multiphase jet on the bottom of the vessel are minimized. By appropriately designing a flash vessel, once the flash tube has been designe...  
WO/2011/038746A1
The invention relates to a method for dezincifying zinced steel scrap, wherein the zinced steel scrap is brought into contact with an acidic solution, which is already pre-loaded with zinc ions. It has been shown that a significant accel...  
WO/2011/035380A1
A process is disclosed for recovering one or more metals from an industrial residue/waste. The process comprises the steps of: (a) adding the residue/waste as a sludge or solid to leaching stage in which it is leached with an aqueous hal...  
WO/2011/030301A1
A process for treating a feedstock is provided. The feedstock comprises a mineral and/or a metal oxide/silicate derived from or associated with a mineral. The process comprises treating the feedstock by reacting, in a reaction step, the ...  
WO/2011/029172A1
There is provided a method of treating a metalliferrous material, comprising: providing a metalliferrous material including at least one target metallic element; solubilising the metalliferrous material so as to effect production of an i...  
WO/2011/026434A1
Titaniumrich hydrochloric acid leaching residue is provided, which belongs to the field of the preparation of titanium dioxide and relates to the titaniumrich hydrochloric acid leaching residue prepared by hydrochloric acid leaching ilme...  
WO/2011/027094A1
A nickel recovery process usable for instance with electro less plating waste The process including reacting the waste material with dimethylglyoxime to form an intermediate complex nickel dimethylglyoxime and a nickel depleted waste mat...  
WO/2011/024164A1
An improved process for the separation of different metal values from raw materials, and an apparatus for carrying out such processes are disclosed.  
WO/2011/022817A1
A process to the production of silicon from amorphous silica is disclosed. The amorphous silica is formed from a material rich in silica, especially rice husk ash or silica fume. The process comprises subjecting the amorphous silica to l...  
WO/2011/024184A1
The novel lipophilic metal extractants of the class dialklydiaza-tetraalkyloctanediamide (DADA) useful to selectively separate trivalent americium (sup. 241 Am) from trivalent lanthanides are represented by the formula (1): Wherein R is ...  
WO/2011/021696A1
Provided are a palladium ion adsorbent for solid-liquid adsorption which has both the extraction performance and selectivity of a palladium extractant for liquid-liquid extraction used in conventional solvent extraction methods and which...  
WO/2011/020181A1
Calcium (Ca), manganese (Mn) and magnesium (Mg) carbonate plus lead (Pb) and zinc (Zn) sulphide minerals in a permeable host, crushed ore, concentrates or as mine discharge tailing are selectively solution mined (in-situ or ex-situ) with...  
WO/2011/018550A1
The invention relates to a method for leaching an ore containing copper and cobalt in a reactor, where the copper and cobalt minerals of the ore are mainly oxidic and partially sulphidic. The copper and cobalt of the ground ore are leach...  
WO/2011/015991A3
A process is described for leaching a value metal from an iron-containing ore, the process including the steps of leaching the ore in an acidic sulfate solution so as to form an iron-sulfate salt in a leach solution; adding sulfur dioxid...  
WO/2011/014930A1
A method for leaching cobalt from a non-lateritic oxidised cobalt ore, the method comprising the method steps of: curing the non-lateritic oxidised cobalt ore to be leached through the application of an aqueous solution of a cobalt reduc...  
WO/2011/015991A2
A process is described for leaching a value metal from an iron-containing ore, the process including the steps of leaching the ore in an acidic sulfate solution so as to form an iron-sulfate salt in a leach solution; adding sulfur dioxid...  
WO/2011/012579A1
The invention relates to the use of a diglycolamide to increase the separation factor between americium and curium and/or between lanthanides during an extraction operation including contacting an acidic aqueous phase, which contains ame...  
WO/2011/012563A1
The invention relates to a method for selectively recovering americium from an aqueous nitric phase containing americium, curium, and fission products including lanthanides and yttrium, but free of uranium, plutonium and neptunium, or wh...  
WO/2011/010289A3
This invention relates to a process for the recovery of precious metal/s from a precious metal-containing material in an aqueous leach slurry or solution. The process includes the step of contacting the precious metal/s in the leach slur...  
WO/2011/010289A2
This invention relates to a process for the recovery of precious metal/s from a precious metal-containing material in an aqueous leach slurry or solution. The process includes the step of contacting the precious metal/s in the leach slur...  
WO/2011/006223A1
A method for recovering base metal values from oxide ore is provided, where the ore includes a first group metal selected from nickel, cobalt and copper. The method includes reducing ore particle size to suit the latter unit operation, f...  
WO/2011/008137A3
The invention relates to methods for extracting rare earth elements, in particular from phosphogypsum. The proposed method involves the acid extraction of rare earth element compounds from phosphogypsum using a solution consisting of a m...  
WO/2011/005736A2
Provided herein are processes for recovering molybdenum and/or other value metals (e.g., uranium) present in aqueous solutions from a large range of concentrations: from ppm to grams per liter via a solvent extraction process by extracti...  

Matches 551 - 600 out of 7,302