| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 03/07/2007 | CN1925915A Method for reclaiming precious metal from metallic carrier catalyst device |
| 03/07/2007 | CN1924046A Method of retrieving magnesium from high magnesium phosphorus ore |
| 03/07/2007 | CN1924045A Method of dynamic continuous oxidation extracting cerium under potassium hypermanganate preferential extraction condition |
| 03/07/2007 | CN1924044A Method of extracting and enriching gold (I) from cyaniding gold containing leaching solution |
| 03/07/2007 | CN1924043A Method of deep eliminating minute quantity organic solvent from inorganic salt solvent |
| 03/07/2007 | CN1924042A Method of bacterial eliminating sulfur in high sulfur bauxite |
| 03/07/2007 | CN1924041A Method of eliminating oil from nickel chloride solution |
| 03/07/2007 | CN1924040A Aeration method for gas-liquid-solid phase reaction in wet method leaching process |
| 03/07/2007 | CN1924039A Preparation method of chlorine soak slag open-circuit copper |
| 03/07/2007 | CN1924038A Method of leaching gold from gold ore |
| 03/07/2007 | CN1303232C Zinc oxide raw ore fluidization leaching process |
| 03/07/2007 | CN1303231C Zinc sulfide concentrate calcines and zinc ide ore combined leaching process |
| 03/07/2007 | CN1303230C Pressure oxidation leaching-out method for nickel-cobalt oxide ore |
| 03/01/2007 | WO2007024211A1 Treatment of reclaim water for use in metals recovery |
| 03/01/2007 | WO2007023002A1 Production of pure metal, metal mixtures and/or metal alloys in the form of nanoparticles and structures by adsorption on cellulose fibres |
| 03/01/2007 | WO2007022622A1 Apparatus for production, withdrawal and transfer of highly viscous slurry |
| 03/01/2007 | US20070048203 removal of Cu from a concentrated chloride-containing ZnSO4 raw solution that is going to an electrolytic preparation of zinc, using chelating alkyl-silylated silica-based ion exchanger having polyamine group, comprising routing raws solution to an ion exchange stage; purifying copper free raw solution |
| 03/01/2007 | CA2619529A1 Treatment of reclaim water for use in metals recovery |
| 02/28/2007 | EP1755759A1 Method and apparatus for purification of an aqueous solution form droplets of extraction solution |
| 02/28/2007 | EP1573078A4 Method for reducing emissions |
| 02/28/2007 | CN1921941A Method for recovering molybdenum and method for preparing catalyst |
| 02/28/2007 | CN1920071A Method of coproducing modified polyiron from copper extracted PCB acid etching waste liquid |
| 02/28/2007 | CN1920070A Method of effectively eliminating chloride ion in neutral or acid solution |
| 02/28/2007 | CN1920069A Method of detoxifying chromic slag by bacteria |
| 02/28/2007 | CN1920068A Ultrasound leaching technique of concentrated sulfuric acid roasting rare earth concentrate |
| 02/28/2007 | CN1920067A Method of acid extracting aluminium from high-silicon alumina-containing raw mineral materials |
| 02/28/2007 | CN1920066A Producing method of ultrapure iron concentrate powder |
| 02/28/2007 | CN1920065A Method of directly producing ultra-fine lead oxide powder from galena concentrate |
| 02/28/2007 | CN1919443A Hydrogen sulfide absorption and utilization device |
| 02/28/2007 | CN1302132C Introduction of microorganisms in bio-assisted heap leachingoperations0 |
| 02/27/2007 | US7182926 Process for separating and recovering valuable metals |
| 02/27/2007 | US7182925 Tantalum concentrates dissolution and purification method |
| 02/22/2007 | WO2007019707A1 Method and apparatus for the recovery of refractory mineral ores |
| 02/22/2007 | WO2007019701A1 Method for processing ore to minimize the production of acidic wastes |
| 02/22/2007 | US20070041884 Resin and process for extracting non-ferrous metals |
| 02/22/2007 | US20070039420 During metal recovery from an ore, a seeding agent is introduced to provide a nucleation site for the crystallization and/or growth of solid species which otherwise tend to passivate the reactive process or encapsulate the metal value |
| 02/22/2007 | DE112004002800T5 Verfahren zur Rückgewinnung von Edelmetallen aus einer katalytischen Vorrichtung mit metallischem Träger Process for the recovery of precious metals from a catalytic device with metal core |
| 02/22/2007 | CA2633811A1 Method for processing ore to minimize the production of acidic wastes |
| 02/22/2007 | CA2595475A1 Method and apparatus for the recovery of refractory mineral ores |
| 02/21/2007 | EP1628913B1 A process for recovering phosphorus from phosphorus production sludge |
| 02/21/2007 | CN2871553Y Bio-oxidation pre-treater containing arsenic carbon and gold mineral difficult to be treated |
| 02/21/2007 | CN2871552Y Exchanger of biological oxidation channel |
| 02/21/2007 | CN1918309A Bacterial oxidation of sulphide ores and concentrates |
| 02/21/2007 | CN1301338C Novel copper recovery method by copper anode mud pressurization and pickling |
| 02/21/2007 | CN1301337C Once process for extracting and separating Ni, Mg and Co from nickel sulfate solution recovered from waste nickel-hydrogen and nickel-cadmium cells |
| 02/15/2007 | WO2007016737A1 Hydrometallurgical method for the extraction of nickel and cobalt from laterite ores |
| 02/15/2007 | WO2006078901A3 Process for the recovery of materials from a desulfurization reaction |
| 02/15/2007 | US20070036699 Method of extracting contaminants from solid matter |
| 02/15/2007 | US20070034056 Beneficiating laterite ores by scrubbing, screening,classification to separate into an upgraded fraction and low graded fraction free of fines and clay; processing the upgraded; heap leaching the low graded fraction for further nickel/cobalt recovery; hydrometallurgy; efficiency; wastetreatment |
| 02/15/2007 | CA2618142A1 Hydrometallurgical method for the extraction of nickel and cobalt from laterite ores |
| 02/14/2007 | EP1752550A1 Method of recovering nickel and cobalt |
| 02/14/2007 | CN1912158A Preparation method and use of single, compound arsenic with bio-effect |
| 02/14/2007 | CN1912157A Preparation method and use of bioactive sing-compound arsenic |
| 02/14/2007 | CN1912156A Method for extracting gold (I) from enriched alkaline cyanide gold immersing liquid |
| 02/14/2007 | CN1912154A Method for decoating on waste plastic metal |
| 02/14/2007 | CN1912153A Method for extracting metallic gallium from aluminium oxide production procedure |
| 02/14/2007 | CN1912152A Method for extracting valence metal from copper ferrocobalt alloy |
| 02/14/2007 | CN1911079A Carried type, super-fine, active elemental arsenic, prepn. method and use thereof |
| 02/14/2007 | CN1300350C Technique for producing ammonium paratungstate from raw material of tungsten through iron exchange method of alkali breakdown |
| 02/14/2007 | CN1300349C Self-catalytic reduction ammonia-leaching method for multi-metal concretion in deep sea |
| 02/14/2007 | CN1300003C Autoclave control method for pressure oxidation of molybdenite |
| 02/14/2007 | CN1299995C Production process of copper sulfate from copper sulfide ore |
| 02/13/2007 | US7175823 Purification method for producing high purity niobium compound and/or tantalum compound |
| 02/13/2007 | US7175818 Extraction of metals with diquaternary ammonium salts |
| 02/08/2007 | WO2007015392A1 Method and apparatus for recovering indium from waste liquid crystal display |
| 02/08/2007 | WO2006075999A3 Method for scavenging mercury |
| 02/08/2007 | WO2006071672A3 Modified amine-aldehyde resins and uses thereof in separation processes |
| 02/08/2007 | US20070029254 Method and equipment for liquid-liquid extraction |
| 02/08/2007 | US20070028721 Treatment of base metal concentrate by a two-step bioleaching process |
| 02/08/2007 | US20070028720 Process for the high yield recovery of lead from spent lead-acid batteries with reduced associated production of slag and gaseous emissions |
| 02/07/2007 | EP1558771B1 Production of titania |
| 02/07/2007 | CN1908207A Method of comprehensive utilizing iron making blast furnace dust resources |
| 02/07/2007 | CN1298872C Phosphorus-eliminating purification process of vanadium-containing chamotte leachate |
| 02/07/2007 | CN1298871C Method for producing mischmetal using Mianning rare earth ore as raw material |
| 02/06/2007 | US7172738 Liquids/solids reaction vessel configured to contain a mixture of at least one liquid and at least one solid. The vessel includes a closed perimeter wall defined by an effective height, and a bottom connected to the closed perimeter wall to |
| 02/01/2007 | US20070022843 Recovery of platinum group metals |
| 02/01/2007 | DE112005000349T5 Verfahren und Vorrichtung zum Erzeugen von Nanoteilchen aus Silber Method and apparatus for producing nano-particles of silver |
| 01/31/2007 | CN1904142A Copper extraction method of etching waste liquid or low copper containing waste liquid |
| 01/31/2007 | CN1904097A Technology of preparing fluorine less niobium oxide by oxalic acid system extraction method |
| 01/31/2007 | CN1904094A Method of extracting gold and silver from arsenic containing aurin ore |
| 01/31/2007 | CN1904092A Method of oxidizing transforming leaching vanadium from stone coal under pressure field |
| 01/31/2007 | CN1904091A Method of extractin zinc from low grade zinc ore |
| 01/30/2007 | US7169371 Process for the treatment of molybdenum concentrate |
| 01/25/2007 | US20070018138 Highly pure hafnium material, target thin film comprising the same and method for producing highly pure hafnium |
| 01/24/2007 | CN1900330A Low pollution vanadium settling iron-removing wet zinc smelting method |
| 01/24/2007 | CN1899971A Method for extracting V2O5 from stone coal vanadium ore |
| 01/23/2007 | US7166144 Contacting an organic phase comprised of a water insoluble and water immiscible solvent solution of an extraction reagent; contacting partially loaded organic phase with aqueous metal bearing solution to form a metal depleted aqueous raffinate solution; contacting aqueous metal bearing solution |
| 01/23/2007 | US7166143 Refining an indium sponge under a layer of alkali to form indium; smelting the indium under a layer of chloride melt to form a salt melt; treating the salt melt with twice distilled water to form indium metal; treating the indium metal with an acetic acid solution water |
| 01/23/2007 | CA2386940C Process for reducing the concentration of dissolved metals and metalloids in an aqueous solution |
| 01/23/2007 | CA2367606C Oxidative pressure leach recovery using halide ions |
| 01/18/2007 | US20070014709 Recovering metals from sulfidic materials |
| 01/17/2007 | EP1743044A1 Method for recovery of palladium |
| 01/17/2007 | EP1742883A1 Method for the elimination of uranium(vi) species in the form of uranyl complexes from waters |
| 01/17/2007 | EP1742877A2 Remediation of heavy metals in ammunition traps and shooting ranges |
| 01/17/2007 | CN2858669Y Thrust brake for slant type roller slag processor |
| 01/17/2007 | CN1898401A Production of titania |
| 01/17/2007 | CN1896006A Extraction of vanadium from stone coal with pollution treatment and ceramic production combination |
| 01/17/2007 | CN1295363C Poisonless extracting and refining method for noble metals |
| 01/17/2007 | CN1295358C Method for enriching bismuth by polyvinyl alcohol amine oxime chelate fiber |
| 01/17/2007 | CN1295357C Recovery method of valuable element in neodymium iron boron waste material |