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Matches 701 - 750 out of 7,970

Document Document Title
WO/2011/126375A1
This invention relates to a method for extraction of elements from carbonate-containing minerals with limited use of mineral acid and small discharges of CO2. The method comprises crushing the mineral to particles, submerging the crushed...  
WO/2011/120127A1
In various aspects, the invention provides processes that use relatively low levels of acid to leach lean nickel ores, including processes that provide relatively high levels of extraction of nickel and cobalt from nickel laterite ores, ...  
WO/2011/120826A1
The invention relates to a method for determining the quantity of magnetic or ferromagnetic particles in a suspension (3) flowing through a control chamber (2), wherein the magnetic flux is measured by means of a measuring coil (8) surro...  
WO/2011/117524A1
The invention relates to a method for recycling a used surface treatment bath, containing trivalent chromium and laden with at least one polluting cation. Said method is characterized in that it includes a step (1200) of liquid-liquid ex...  
WO/2011/116426A1
A process for leaching uranium from a refractory uraniferous mineral including the step of treating a slurry containing said uraniferous mineral and ferrous ions in a reactor with an acid and an oxidant to increase the ORP in the reactor...  
WO/2011/114000A1
A hydrometallurgical method of processing nickel containing raw material such is provided. The raw material is leached in chloride-based leaching media in a process integrated with chlorine-alkali electrolysis, solvent extraction and ele...  
WO/2011/113080A1
A method for leaching molybdenum and/or rhenium from a sulfide ore and/or concentrate containing such, the method comprising the steps of: Exposing the ore and/or concentrate to an aqueous solution of chlorine-based oxidising species in ...  
WO/2011/113997A1
The invention relates to a method and a reactor for purifying solid matter from the process solution (2) in the fluidized bed in the reactor, into which the process solution is fed to form the fluidized bed (4) in the essentially cylindr...  
WO/2011/114824A1
Tin characterized in that a melted and casted sample thereof has an α-dose less than 0.0005 cph/cm2. With the recent tendency toward high-density and high-capacity semiconductor devices, the risk of soft errors caused by α-rays emitted...  
WO/2011/111407A1
Disclosed is a wastewater treatment method for selectively eliminating manganese from wastewater that is acidic due to sulfuric acid and contains aluminum, magnesium and manganese. The wastewater treatment method controls the precipitati...  
WO/2011/107802A3
A method of recovering vanadium, nickel and molybdenum from heavy crude oil refinery residues comprises pyrolysis and combustion of the residues at temperatures up to 900°C to produce an ash, converting the ash to an aqueous slurry comp...  
WO/2011/104798A1
Provided is a valuable-metal recovery method for recovering metals from lithium ion batteries using comparatively simple equipment and without using a cumbersome process. In said method, a positive electrode material from lithium ion bat...  
WO/2011/104436A1
The invention relates to the hydrometallurgical treatment of laterite ores in order to recover valuable metals. More specifically, the invention presented relates to a method for improving precipitation and solid-liquid separation in con...  
WO/2011/100820A1
A method for recovering hydrochloric acid and metal oxides from a chloride liquor is described. The method comprises: providing a chloride liquor including the metal and mixing the liquor and a matrix solution to produce a reaction mixtu...  
WO/2011/100821A1
The present invention relates to a process and system for recovery of gold from an ore comprising the steps of i) providing the ore containing the gold to be recovered, ii) leaching the ore in an oxidative chloride medium, comprising a n...  
WO/2011/098979A3
The invention relates to novel algae of the Coccomyxa genus, in particular the algae of a novel species called Coccomyxa actinabiotis, and to the use thereof for metal uptake from aqueous media, and in particular from radioactive media.  
WO/2011/100457A1
Method of ion exchange cobalt recovery. Raffinate including cobalt, zinc, copper, nickel and ferric iron is produced. In the raffinate, the pH is raised, the solids are removed and ferric iron is reduced. A copper recovery ion exchange u...  
WO/2011/098979A2
The invention relates to novel algae of the Coccomyxa genus, in particular the algae of a novel species called Coccomyxa actinabiotis, and to the use thereof for metal uptake from aqueous media, and in particular from radioactive media.  
WO/2011/100442A1
A method for extracting cobalt from copper raffinate. First, a supply of raffinate containing at least cobalt, copper, ferric iron and nickel, is provided. The raffinate is pretreated by one or all of raising the raffinate pH level; remo...  
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/2011/094858A1
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/2011/090086A1
"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/2011/077961A1
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/2011/076739A1
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/2011/074948A1
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/2011/070219A1
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/2011/070219A8
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/2011/068859A1
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/2011/059380A1
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/2011/058564A3
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/2011/056576A2
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/2011/056548A2
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/2011/056576A3
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/2011/047477A1
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/2011/049218A1
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/2011/041873A1
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/2011/029172A1
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...  

Matches 701 - 750 out of 7,970