| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 03/23/2010 | US7682419 Hydrometallurgical process for the most complete metal extraction while preventing elementary sulfur formation; sulfide minerals oxidation in aqueous slurry using nitrogen oxides under controlled acidity; sulfuric acid formed neutralized constantly by calcium/magnesium salts |
| 03/23/2010 | CA2449467C Method for thiosulfate leaching of precious metal-containing materials |
| 03/23/2010 | CA2386614C The elution of gold from anion exchange resins |
| 03/19/2010 | CA2678724A1 Hydrometallurgical process of nickel laterite ore |
| 03/18/2010 | US20100064854 Nickel-laterite process |
| 03/17/2010 | CN101671777A Multi-metal recovery processing technique of waste liquid generated in germanium producing process |
| 03/17/2010 | CN101670242A Separating technology of extractive phase pre-disperse immersion type hollow fiber support liquid membrane |
| 03/17/2010 | CN100594246C Method for recovering high-purity molybdenum from molybdenum-containing dead catalyst |
| 03/16/2010 | US7678279 Metal compound removal |
| 03/16/2010 | US7678275 Method and equipment for liquid-liquid extraction |
| 03/11/2010 | WO2010026599A1 A bench scale pressure reactor unit with data acquisition and control system for chemical leaching of minerals |
| 03/11/2010 | US20100059910 Apparatus for recycling metal from metal ions containing waste solution |
| 03/11/2010 | US20100058894 Methods and systems for leaching a metal-bearing ore for the recovery of a metal value |
| 03/11/2010 | US20100058893 ion exchange resin and a process for the use thereof |
| 03/10/2010 | EP2160481A1 Method for the valorisation of zinc- and sulphate-rich residue |
| 03/10/2010 | EP2160480A1 Process for precious metal recovery from a sulphide ore or concentrate or other feed material |
| 03/10/2010 | CN201420091Y P507 extraction box capable of simultaneously producing cobaltous chloride and colbaltous sulfate |
| 03/10/2010 | CN101665870A Method for preventing interfacial crud during vanadium-chromium extraction and separation |
| 03/10/2010 | CN101665869A Method for highly concentrating metal solution in wet metallurgy |
| 03/09/2010 | US7674441 Highly pure hafnium material, target and thin film comprising the same and method for producing highly pure hafnium |
| 03/09/2010 | CA2490044C Method of and apparatus for simulating a biological heap leaching process |
| 03/04/2010 | WO2010025096A1 Methods and systems for leaching a metal-bearing ore for the recovery of a metal value |
| 03/04/2010 | WO2010022481A1 Electrochemical method for nickel and cobalt extraction from oxide ores |
| 03/04/2010 | WO2010022480A1 Method for nickel and cobalt extraction from oxide ores |
| 03/04/2010 | WO2009146175A3 Wet chemical process for the sustainable recovery of metal compounds from waste such as electronic scrap |
| 03/03/2010 | CN201416028Y Metal titanium extracting device |
| 03/03/2010 | CN201416027Y Metal ion separating and enriching device |
| 03/03/2010 | CN201416026Y Molybdenum hydrometallurgy oxygen pressure oxidation reaction device |
| 03/03/2010 | CN101660047A Composite extractant, preparation thereof and application thereof in metal indium extraction |
| 03/03/2010 | CN101660046A Reductive desorption method of vanadium-containing resin |
| 03/03/2010 | CN101660045A Method for leaching and recovering molybdenum from ammonia leaching residue |
| 03/03/2010 | CN101660044A Novel molybdenum calcining processing technology |
| 03/03/2010 | CN101660043A Classified stacking method of oxidized mine with high content of mud |
| 03/03/2010 | CN101660042A Leaching agent suitable for wet method leaching copper and application thereof |
| 03/02/2010 | US7670407 Method of producing titanium |
| 03/02/2010 | CA2481332C Process for the treatment or removal of impurities in a hydrometallurgical extraction process |
| 02/25/2010 | WO2010020245A1 An improved process of leaching lateritic ore with sulphoric acid |
| 02/25/2010 | US20100043600 Reclaiming of lead in form of high purity lead compound from recovered electrode paste slime of dismissed lead batteries and/or of lead minerals |
| 02/24/2010 | EP2155919A1 Processes for extracting aluminum and iron from aluminous ores |
| 02/24/2010 | CN201411480Y Vanadic oxide soaking and suction filtrating device |
| 02/24/2010 | CN101657552A Method for the elution of 18F fluoride trapped on an anion-exchange resin in a form suitable for efficient radiolabeling without any evaporation step |
| 02/24/2010 | CN101654739A Method for increasing replacement recovery rate of gold and silver pregnant solution with arsenic |
| 02/23/2010 | US7666371 Method for recovering metal values from metal-containing materials using high temperature pressure leaching |
| 02/23/2010 | CA2229232C Method for recovering nickel hydrometallurgically from two different nickel mattes |
| 02/18/2010 | WO2009153409A4 Method for leaching nickel matte in the presence of added copper |
| 02/17/2010 | CN201406391Y Preparation system for N-910 copper extractant |
| 02/17/2010 | CN101649393A Method for enriching low-concentration valuable metals in mixed solution containing light metals |
| 02/16/2010 | CA2436111C Method for removing impurities from solvent extraction solutions |
| 02/16/2010 | CA2289965C Method for separation of metals from ore |
| 02/11/2010 | WO2010015019A1 Treating iron ore |
| 02/11/2010 | CA2648252A1 Process for recovery of copper from copper-containing chloride media |
| 02/10/2010 | CN101643848A Method for removing vanadium from tungstate solution |
| 02/10/2010 | CN101643847A Tributyl phosphate extraction resin for zirconium-hafnium separation and preparation method thereof |
| 02/10/2010 | CN101643846A Complex copper sulphide ore thermal activating-pressure leaching technology |
| 02/10/2010 | CN101643845A Method for reducing the dosage of caustic solvent in nickel concentrate atmospheric straight dipping |
| 02/09/2010 | USRE41099 Recovery of cobalt from cobalt containing materials, ores, scrap, slag, metallurgical intermediates and by-products, particularly nickel-and iron-containing materials, by treating metal carbonyl mixture with nitric oxide and carbon monoxide to form cobalt nitrosyl tricarbonyl, which is pyrolysed to metal |
| 02/09/2010 | US7658783 High temperature heap bioleaching process |
| 02/09/2010 | CA2471179C A method for the recovery of cobalt |
| 02/07/2010 | CA2674490A1 Method for scrubbing an amine type extractant after stripping |
| 02/04/2010 | WO2010012030A1 Process for controlled homogeneous acid leaching |
| 02/04/2010 | US20100024598 Process for the treatment of contaminated metal residues and apparatus for implementing it |
| 02/03/2010 | CN201394377Y Improved extraction box |
| 02/03/2010 | CN101638722A Method for extracting and separating uranyl ions from aqueous phase |
| 02/03/2010 | CN101638721A Method for extracting and separating cesium ions from aqueous phase |
| 02/03/2010 | CN101638720A Bacterial leaching copper method of complex chalcopyrite flotation tailings |
| 02/03/2010 | CN101638719A Method for producing synthetic rutile by wet method |
| 02/03/2010 | CN100587085C Stone coal vanadium-extracting leaching technique |
| 02/02/2010 | CA2526468C A process for recovering phosphorus |
| 02/02/2010 | CA2407935C Drainage aids in papermaking |
| 01/28/2010 | WO2010009530A1 Method and apparatus for temperature control in a reactor vessel |
| 01/28/2010 | WO2010009512A1 Removal of metals from complex ores |
| 01/28/2010 | WO2009146571A3 System for controlling and monitoring irrigation in leaching heaps |
| 01/28/2010 | WO2009125341A3 Method and apparatus for the microbiological removal of mercury from contaminated materials |
| 01/28/2010 | CA2731859A1 Removal of metals from complex ores |
| 01/28/2010 | CA2731152A1 Method and apparatus for temperature control in a reactor vessel |
| 01/27/2010 | CN201390775Y Device utilizing hydrogen sulfide to remove impurities such as lead, cadmium, mercury and copper from nickel-cobalt solution |
| 01/27/2010 | CN201389357Y Combined extraction tank |
| 01/27/2010 | CN101633982A Method for circularly removing chlorine in zinc sulphate solution by copper slag |
| 01/27/2010 | CN101633981A Titaniferous material acidolysis method and titanium dioxide preparing method |
| 01/27/2010 | CN100584970C Hybrid extraction method and extractant for extraction separation of rare earth elements |
| 01/27/2010 | CN100584969C Technique for extraction separation of quadravalence cerium, thorium and cerium less tervalence rare earth from sulphuric acid rare earth solution |
| 01/27/2010 | CN100584968C Method and device for washing wet-process zinc metallurgy output slag |
| 01/27/2010 | CN100584967C Method for separating highly-pure rare-earth oxide from rare earth mine for reinforced baking by sulfuric acid |
| 01/26/2010 | CA2422477C Recovery of metals by incineration of metal containing basic ion exchange resin |
| 01/21/2010 | WO2010009481A2 A method of treating a sulphide mineral |
| 01/21/2010 | CA2728924A1 A method of treating a sulphide mineral |
| 01/20/2010 | CN201386130Y Automatic control device for rare earth extraction separation production |
| 01/20/2010 | CN201386129Y Gallium metal chemical extraction device |
| 01/20/2010 | CN101629240A Method for preparing high-purity cobalt solution by purifying cadmium contained in cobalt solution by solvent extraction method |
| 01/20/2010 | CN101629239A Processing method of third phase of copper extraction system |
| 01/20/2010 | CN101629238A Residue washing method in cobalt hydrometallurgy industry |
| 01/20/2010 | CN100582265C Method for producing 4N metal gallium |
| 01/20/2010 | CN100582264C Method for extracting metallic nickel cobalt from irony nickel mine |
| 01/20/2010 | CN100582261C Method and device for reclaiming platinum-silver-iodine form platinum-containing silver iodide slag |
| 01/20/2010 | CN100582260C 硫化矿的堆浸 Heap leaching of sulphide ore |
| 01/20/2010 | CN100582259C Method for acid hydrolysis, oxidation, conversion and leaching of vanadium after stone coal decarburization |
| 01/20/2010 | CN100582257C Method for roasting high calcium vanadium slag with fluidizing apparatus |
| 01/19/2010 | US7648689 Process for the production of InP fine particles and InP fine particle dispersion obtained by the process |
| 01/19/2010 | US7648557 Process for making highly dispersible spherical silver powder particles and silver particles formed therefrom |
| 01/13/2010 | EP2142677A1 Reactor for separating aluminium from multi-layer film materials |