Patents
Sitemap › C22 - Metallurgy; Ferrous or non-ferrous alloys; Treatment of alloys or non-ferrous metals › C22B - Production or refining of metals; Pretreatment of raw materials › C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes
Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429)
04/2014
04/15/2014US8696788 Process for the Recovery of AB5 Alloy from Used Nickel/Metal Hydride Batteries
04/15/2014CA2697187C Method for upgrading copper concentrate
04/10/2014WO2014053705A1 Method for recovery of silver from sulphur-containing zinc leach residues
04/10/2014US20140099513 Preparation method of silver nano-structure for surface enhanced, raman scattering substrate and silver nano-structure thereby
04/10/2014US20140096649 Alkaline and acid pressure oxidation of precious metal-containing materials
04/09/2014EP2716775A1 Obtaining a ferric nitrate reagent in situ from a copper raffinate solution in a hydrometallurgical copper process
04/09/2014EP2716359A1 Complex and uses thereof
04/09/2014EP2714951A1 Effective recovery of lithium from lithium ion battery waste
04/09/2014EP2714950A1 Selective base metals leaching from laterite ores
04/09/2014EP2714594A1 Methods for preparing hematite
04/09/2014CN203533965U Copper agitation leaching waste heat exchanging device
04/09/2014CN203530398U Laterite-nickel ore jointed leaching system
04/09/2014CN203530389U Tank type activated carbon adsorption device
04/09/2014CN203530388U Ion type rare-earth ore leaching system
04/09/2014CN103710549A Method for efficiently extracting lithium from salt lake brine
04/09/2014CN103710547A Method for extracting zinc from zinc ammonia leaching liquid
04/09/2014CN103710542A Iron-like concentrate and preparation method thereof
04/09/2014CN103710541A Wet process for producing electrolytic manganese dioxide
04/09/2014CN103710540A Method for preparing manganese sulfate electrolyte
04/09/2014CN103710539A Device for preparing electrolytic manganese metal by virtue of wet process
04/09/2014CN103710533A Method for producing electrolytic manganese metal
04/09/2014CN103706147A Method of improving phase separation speed of organic phase and water phase in extraction tank
04/09/2014CN103243222B Modified lime sulphur and application thereof in gold leaching technology
04/09/2014CN103060558B Rare earth extracting system
04/09/2014CN103014333B Separation and recovery method of uranium, thorium and rare earth in monazite slag
04/09/2014CN102864303B Method for leaching potassium in phosphorus potassium associated ore at low temperature by assisting with microwaves/ultrasonic waves
04/09/2014CN102766766B Non-saponification rare earth extraction separation process
04/09/2014CN102676809B Arsenic-alkali separation method for leaching agent after removing antimony from sodium carbonate type arsenic-alkali slag in antimony smelting process
04/09/2014CN102329962B Method for deeply separating tungsten and molybdenum from high-tungsten and high-molybdenum mixed solution
04/08/2014CA2728924C A method of treating a sulphide mineral
04/08/2014CA2629093C Thiosulfate generation in situ in precious metal recovery
04/08/2014CA2532999C Oxidative leach process
04/03/2014WO2014048385A1 Method for comprehensively recovering rare earth and fluorine in bastnaesite treatment process
04/03/2014WO2014047764A1 Method for producing high-purity nanometer zinc oxide from steel plant smoke and dust by ammonia decarburization
04/03/2014WO2014047763A1 Method for producing high-purity nanometer zinc oxide from steel plant smoke and dust by ammonia process
04/03/2014WO2014047762A1 Method for producing high-purity nanometer zinc oxide from low-grade zinc oxide ore by ammonia decarburization
04/03/2014WO2014047761A1 Method for producing high-purity nanometer zinc oxide from low-grade zinc oxide ore by ammonia process
04/03/2014WO2014047759A1 Method for producing high-purity nanometer zinc oxide from electrolytic zinc acid-leaching residues by ammonia process
04/03/2014WO2014047728A1 Processes for preparing alumina and magnesium chloride by hc1 leaching of various materials
04/03/2014WO2014047672A1 Method for the recovery of metals from nickel bearing ores and concentrates
04/02/2014EP2712940A1 Scandium extraction method
04/02/2014CN203513764U Recycling system of gold leaching liquor
04/02/2014CN103703153A Selective base metals leaching from laterite ores
04/02/2014CN103695670A Method for improving ionic rare earth extraction rate and mine tailing safety
04/02/2014CN103695668A Method for extracting metallic tin from tin ore
04/02/2014CN103695664A Novel purification process for zinc hydrometallurgy solution
04/02/2014CN103695662A Comprehensive utilization method of slag iron concentrates of wet-type zinc smelting furnace
04/02/2014CN103695644A Gold and silver leaching agent prepared from cyanate and method for recovering gold and silver by using leaching agent
04/02/2014CN103695643A Method for extracting vanadium pentoxide from stone coal vanadium ore acid-mixed pile ore
04/02/2014CN103695642A Dual-impeller hollow-shaft inflated stirred leaching tank
04/02/2014CN103695636A Preparation method of electrolytic manganese dioxide
04/02/2014CN103694273A Preparation method and application of dialkyl phosphinate compounds and salts thereof
04/02/2014CN103074503B Wastewater zero discharging system and method for vanadium extraction from stone coal
04/02/2014CN103074489B Processing method of refractory gold ore
04/02/2014CN102959105B Substance for collection of metal, metal collection method using the substance, and metal separation/collection apparatus using the substance
04/02/2014CN102925696B Comprehensive recycling method of waste plasma screen
04/02/2014CN102899486B Method for leaching bastnaesite-containing rare-earth ore concentrates in complexing mode and preparing kryocide
04/02/2014CN102808084B Method for enriching platinum and palladium from pressurized cyanating solution
04/02/2014CN102251099B Method for removing arsenic, sulfur and phosphorus by using thiobacillusacidophilus
04/02/2014CN102212695B Method for utilizing straw to refine meal and realize poly-generation
04/01/2014CA2609931C Method and apparatus for ore processing
03/2014
03/27/2014WO2014043771A1 Piezoelectric lamella concentrator equipment and process for fine mineral ores and corresponding separation/concentration circuit
03/26/2014CN203498443U Leaching device for wet method nickel metallurgy
03/26/2014CN203498442U Composite material stirring device
03/26/2014CN203494585U Integrated grinding and leaching production device used by laterite-nickel ore hydrometallurgy
03/26/2014CN103668204A Process for deplating gold plated layer and recovering gold with cyanide-free gold stripping powder
03/26/2014CN103667749A Method for enriching scandium in anatase raw ore
03/26/2014CN103667748A Method for preparing purified scandium from crude scandium enriched in raw anatase and serving as raw material
03/26/2014CN103667726A Method for processing nickle-containing residual ores
03/26/2014CN103667723A Leaching method of cobalt acid lithium used battery anode material
03/26/2014CN103667722A Leaching method for cathode-anode mixed material of used nickel-cadmium battery
03/26/2014CN103667719A Method for recovering Nd (neodymium), Pr (praseodymium), Dy (dysprosium), Co (cobalt) and Fe (iron) simultaneously from NdFeB (neodymium iron boron) oil sludge under OH-OH system
03/26/2014CN103667718A Method for recovering Nd (neodymium), Pr (praseodymium), Dy (dysprosium), Co (cobalt) and Fe (iron) simultaneously from NdFeB (neodymium iron boron) oil sludge under CO3-NH3 system
03/26/2014CN103667716A Method for recovering Nd (neodymium), Pr (praseodymium), Dy (dysprosium), Co (cobalt) and Fe (iron) simultaneously from NdFeB (neodymium iron boron) oil sludge under C2H2O4-NH3 system
03/26/2014CN103667715A Method for recovering Nd (neodymium), Pr (praseodymium), Dy (dysprosium), Co (cobalt) and Fe (iron) simultaneously from NdFeB (neodymium iron boron) oil sludge under C2H2O4-OH system
03/26/2014CN103667710A Technology for clean production of vanadium pentoxide employing high-calcium vanadium slag
03/26/2014CN103667699A Nickel sulfurizing and precipitating method
03/26/2014CN103667698A Ferric iron reducing method in wet process for extracting indium from indium-containing zinc hypoxide or zinc concentrate
03/26/2014CN103667697A Method for extracting zinc from low-concentration zinc sulfate solution
03/26/2014CN103667696A Method for biologically extracting metal from metallurgical and mine solid wastes
03/26/2014CN103667695A Method for extracting arsenic from gold ore
03/26/2014CN103667694A Method for removing phosphorus and leaching iron from high-phosphorus oolitic hematite through cross flow
03/26/2014CN103667693A Method for extracting germanium from high-silicon raw material
03/26/2014CN103667676A Method for purifying molybdenum concentrate through microwave-acid leaching combined technologies
03/26/2014CN103667131A Method for increasing metal ore leaching rate, and special strain thereof
03/26/2014CN103031441B Recycling method for metallic elements in waste nickel-hydrogen batteries
03/26/2014CN102994754B Technology for comprehensively recovering complex material containing lead, bismuth, cobalt and nickel through wet method
03/26/2014CN102994747B Technology for recovering metallic copper from high-lead copper matte
03/26/2014CN102943177B Method for recovering cooper and silicon powder from organosilicon waste residue
03/26/2014CN102925685B Compound solvent for extraction separation of tungsten and molybdenum and using method thereof
03/26/2014CN102851489B Method for comprehensive recovery of valuable metals in brown iron type laterite-nickel ores
03/26/2014CN102796876B Method for extracting scandium oxide from titanium slag chloride waste
03/26/2014CN102676807B Method for leaching manganese oxide
03/26/2014CN102560147B Method for recovering zinc from indium raffinate and zinc scum
03/26/2014CN101466855B Nickel sulphide precipitation process
03/26/2014CA2820631A1 Processes for treating various materials
03/20/2014WO2014042948A1 Methods and systems for leaching a metal-bearing ore
03/20/2014WO2014042549A1 A method for producing alumina
03/20/2014WO2014042136A1 Method for recycling lithium-ion batteries and device therefor
03/20/2014WO2014042131A1 Method for recovering gold
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