| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 08/03/2011 | CN102140580A Multi-metal recycling method of electric furnace tin-smelting dust |
| 08/03/2011 | CN102140578A Molybdenum-tungsten separating process for molybdenum-tungsten mixed ammonium salt solution in tungsten hydrometallurgy |
| 08/03/2011 | CN102140577A Method for leaching high-temperature bioleaching bacteria of non-ferrous metal through continuous stirring |
| 08/03/2011 | CN102140576A Method for extracting nickel and molybdenum from nickel-molybdenum ore |
| 08/03/2011 | CN102140089A Thiacalix [8] arene diethyl acetamide as well as synthesis method and application thereof |
| 08/03/2011 | CN102139182A Acid mist purifying method in electrolytic manganese leaching process |
| 08/03/2011 | CN101781705B Method for microorganism-pelleting heap leaching of earthy oxide copper ores |
| 08/03/2011 | CN101705378B Method for comprehensively recovering valuable metals from complex alloys containing stibium, tellurium, indium, germanium and silver |
| 08/03/2011 | CN101701292B Method for recovering indium and tin from ITO waste targets by utilizing oxidation method |
| 08/03/2011 | CN101565776B Method for eliminating extraction and emulsification of amine and phosphorus organic reagents |
| 08/03/2011 | CN101509071B Method for recycling value metal from lithium cell slag containing Co, Ni, Mn |
| 08/02/2011 | CA2711216C Filter bag for bayer liquor filtration |
| 07/28/2011 | WO2011090086A1 Metal-ion adsorbent and method for recovering metal using same |
| 07/27/2011 | EP2348136A1 Metal recovery from hydroconverted heavy effluent |
| 07/27/2011 | CN201908119U Ore slurry extraction device |
| 07/27/2011 | CN102137957A Process for producing metallic zirconium |
| 07/27/2011 | CN102134654A Treatment method of zinc sulfide ore concentrates |
| 07/27/2011 | CN102134653A Separation-smelting combined process for treating difficultly separated copper-containing gold sulfide ores |
| 07/27/2011 | CN102134651A Heap leaching drainage system for large-scale production of low-grade gold oxide ores |
| 07/27/2011 | CN102134648A Method for comprehensive treatment of industrial waste |
| 07/27/2011 | CN102134645A Desiliconizing method of hydrochloric acid leaching liquor of red mud |
| 07/27/2011 | CN102134644A Novel method for removing fluorine by lithium carbonate prepared by utilizing tantalum-niobium tailing lepidolite |
| 07/27/2011 | CN102134642A Method for improving metal leaching rate in waste lithium ion batteries by controlling oxidation-reduction potential |
| 07/27/2011 | CN102134641A Gold extraction process of gold concentrate with high carbon, arsenic and sulfur |
| 07/27/2011 | CN102134640A Method for leaching vanadium slag in converter by electro-catalytic oxidation |
| 07/27/2011 | CN101624651B Method for leaching cathode materials from waste nickel-metal hydrogen batteries |
| 07/27/2011 | CN101619398B Method for extracting arsenic from pyrite cinder |
| 07/27/2011 | CN101072885B Leaching process in the presence of hydrochloric acid for the recovery of a value metal from an ore |
| 07/26/2011 | US7985277 Process for extracting gold from gold-bearing ore |
| 07/26/2011 | CA2480865C Acid beneficiation of ore |
| 07/21/2011 | WO2011085438A1 Process for the production of electrolytic manganese dioxide |
| 07/20/2011 | CN201899979U Waste gas treatment device |
| 07/20/2011 | CN102127657A Comprehensive recovery method for extracting ferrovanadium from stone coal acid immersion liquid |
| 07/20/2011 | CN102127656A Method for decomposing vanadium slag by liquid phase oxidation |
| 07/20/2011 | CN102127655A Method for decomposing vanadium slag under normal pressure with sodium hydroxide solution |
| 07/20/2011 | CN102127646A Method for reprocessing rare earth slag by acid composition |
| 07/20/2011 | CN102127639A Preparation method of high-clarity uranium solution |
| 07/20/2011 | CN102127638A Biological reaction device and method for stably outputting Fe<3+> |
| 07/20/2011 | CN102127029A 2-(thio-2-ethylhexyl)benzoxazole, preparation method thereof and palladium-platinum extraction method by using 2-(thio-2-ethylhexyl)benzoxazole |
| 07/20/2011 | CN101792854B Desorption technology for gold-loaded carbon |
| 07/20/2011 | CN101608265B Recovering process of associated metal zinc in gold finished ore |
| 07/19/2011 | CA2674069C Method of recovering valuable metal from scrap containing conductive oxide |
| 07/14/2011 | WO2011082453A1 Apparatus for the production of yellowcake from a uranium peroxide precipitate |
| 07/14/2011 | WO2011082444A1 Process for the production of lithium carbonate |
| 07/14/2011 | WO2011058564A3 Evaporation element and process using same |
| 07/14/2011 | CA2786317A1 Process for the production of lithium carbonate |
| 07/14/2011 | CA2785809A1 Apparatus for the production of yellowcake from a uranium peroxide precipitate |
| 07/13/2011 | EP1975259B1 Method for separation and recovery of noble metals |
| 07/13/2011 | EP1922423B1 Hydrometallurgical method for the extraction of nickel and cobalt from laterite ores |
| 07/13/2011 | EP1583848B1 Recovering metals from sulfidic materials |
| 07/13/2011 | CN201896187U Sealing device for rare earth extraction tank |
| 07/13/2011 | CN201894913U Stirring device for production of rare earth |
| 07/13/2011 | CN102121068A Method for preparing vanadium pentoxide |
| 07/13/2011 | CN102121067A Nuisanceless oredressing additive as well as preparation method and application thereof |
| 07/13/2011 | CN102121066A Process for reducing consumption of hydrochloric acid during chlorination distillation of germanium-containing raw material |
| 07/13/2011 | CN101775498B Pretreatment method of copper anode mud |
| 07/13/2011 | CN101709391B Method for producing electrolytic manganese metal by lixiviating sinter ore by adding ferrous sulphate in replacement of manganese carbonate ore |
| 07/13/2011 | CN101384736B Method for recovering copper from a copper sulphide ore |
| 07/12/2011 | CA2488146C Inhibition of the depletion of precious metal values from pregnant lixiviant solutions |
| 07/07/2011 | WO2011081576A2 Process and device for producing molybdenum-99 |
| 07/07/2011 | WO2010068967A8 Apparatus and method for mineral recovery using particulate ion exchange media |
| 07/06/2011 | CN201890910U Rare earth ore coprecipitation settling device |
| 07/06/2011 | CN201890909U Final stage structure of ore pulp extraction device |
| 07/06/2011 | CN201890908U Corrosion-resistant leaching reaction tank |
| 07/06/2011 | CN102115890A Total recycling method of PCB (printed circuit board) nitric acid type tin-lead stripping waste liquid |
| 07/06/2011 | CN102115828A Method for preparing iron and aluminum and coproducing sodium sulfate from red mud produced by bayer process |
| 07/06/2011 | CN102115825A Method for preparing chromium hydroxide, lead chloride and nitrate by utilizing antidotal chromium residues |
| 07/06/2011 | CN102115824A Method for preparing chromium hydroxide, silver chloride and nitrate from detoxicated chromium slag |
| 07/06/2011 | CN102115822A Method for recovering rare earth oxide from fluorescent powder and polishing powder waste |
| 07/06/2011 | CN102115820A Method for separating uranium and titanium from organic phase through stepwise back extraction |
| 07/06/2011 | CN102115819A Method for recycling magnesium from middle-low grade high-magnesium phosphate rock |
| 07/06/2011 | CN102115816A Comprehensive utilization method for laterite-nickel ore |
| 07/06/2011 | CN102115814A Normal pressure catalytic oxidation method for refractory polymetallic gold sulfide concentrate |
| 07/06/2011 | CN102115813A Comprehensive utilization method for low-grade magnesite |
| 07/06/2011 | CN101717857B Method for rapidly and directly dipping nickel sulfide concentrate under action of ultrasonic wave |
| 07/06/2011 | CN101353178B Process for recovering rare earth oxide, process for producing abrasive containing rare earth oxide and polishing method using abrasive |
| 07/05/2011 | US7972413 Precious metal recovery from solution |
| 06/30/2011 | WO2011077961A1 Substance for collection of metal, metal collection method using the substance, and metal separation/collection apparatus using the substance |
| 06/30/2011 | WO2011076995A1 Method for utilising sulphur-containing waste generated in leaching of sulphide concentrates |
| 06/30/2011 | WO2011076739A1 Liquid/liquid extraction method for purifying uranium from nitric acid dissolution of natural uranium concentrate |
| 06/30/2011 | WO2011056548A3 Nitric acid process for the separation and recovery of metals from electronic waste |
| 06/30/2011 | US20110154949 Method for Operating a Furnace and Device for Carrying out the Method |
| 06/30/2011 | CA2785001A1 Liquid/liquid extraction method for purifying uranium from nitric acid dissolution of natural uranium concentrate |
| 06/29/2011 | EP2337872A1 Metal extractant reagents having increased resistance to degradation |
| 06/29/2011 | CN201883125U Replacement tank for producing indium |
| 06/29/2011 | CN201883124U Chemical industry solid-liquid separation and precious metal recovering device |
| 06/29/2011 | CN102108449A Method for preprocessing scheelite and preparing ferro-tungsten |
| 06/29/2011 | CN102108446A Method for non-furnace extraction of copper from coal gangue |
| 06/29/2011 | CN102108442A Method for extracting copper from waste circuit boards |
| 06/29/2011 | CN102108441A Multiple-step purifying method for precious metals of waste PCB (printed circuit board) |
| 06/29/2011 | CN102108440A Method for extracting molybdenum from nickel-molybdenum mineral alkali leaching solution |
| 06/29/2011 | CN102108439A Method for carrying out oxidation leaching on ores by using sodium carbonate and quicklime |
| 06/29/2011 | CN101781716B Method for leaching recovery of cobalt from laterite under normal atmosphere pressure |
| 06/29/2011 | CN101693947B Additive and method for extracting vanadium by roasting stone coal ores, and preparation method thereof |
| 06/29/2011 | CN101693932B Method for producing ferrovanadium |
| 06/28/2011 | US7968065 Process for the recovery of value metals from base metal sulfide ores |
| 06/28/2011 | CA2634878C Process for producing scorodite and recycling the post-scorodite-synthesis solution |
| 06/23/2011 | WO2011074948A1 Hydrometalurgical process and apparatus for recovering metals from waste material |
| 06/22/2011 | EP2336376A1 Method for processing mineral raw material |
| 06/22/2011 | EP2336375A1 Method for the recovery of noble metals |