| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 07/04/2012 | CN101831550B Method for extracting indium from alkali oxidation scum rich in indium |
| 07/04/2012 | CN101830468B Process for extracting white carbon black in alkaline-leaching and vanadium extraction of stone coal |
| 07/04/2012 | CN101813932B Method for component content prediction and optimization operation in wet-process metallurgic extraction process |
| 07/04/2012 | CN101760629B Thiosulfate gold extracting method taking triethylene tetramine as additive |
| 07/04/2012 | CN101743202B Method of treating copper-arsenic compound |
| 07/04/2012 | CN101538648B Method for activating ammonia leaching for high calcium-magnesium zinc oxide ore |
| 07/04/2012 | CN101392327B Method for leaching copper in waste printed circuit board by microbiology |
| 07/03/2012 | US8211389 Metal scavenging polymers and uses thereof |
| 07/03/2012 | CA2518047C Method for controlling oxygen when separating minerals from a slurry |
| 07/03/2012 | CA2499507C Method for removal of silver from a copper chloride solution |
| 06/28/2012 | WO2012088212A2 Protective system and chemical agents for leaching polycrystalline diamond elements and for recovery of leached materials |
| 06/28/2012 | WO2012083583A1 Method for extracting tungsten from scheelite |
| 06/28/2012 | US20120161374 Hydrometallurgical plant of nickel laterite ore and operation method thereof |
| 06/28/2012 | CA2821736A1 Protective system and chemical agents for leaching polycrystalline diamond elements and for recovery of leached materials |
| 06/28/2012 | CA2815708A1 Method for extracting tungsten from scheelite |
| 06/27/2012 | EP2468397A1 Palladium ion adsorbent and method for separating and recovering palladium using same |
| 06/27/2012 | CN202283417U 一种锆铪分离萃余液脱油装置 One kind of zirconium and hafnium separation raffinate oil removal device |
| 06/27/2012 | CN102517463A Organic recovery method in extraction and separation line |
| 06/27/2012 | CN102517462A Process for constant temperature extracting and completely separating high purity holmium, erbium, thulium, ytterbium and lutetium |
| 06/27/2012 | CN102517461A Method for recycling gallium in alunite concentrate |
| 06/27/2012 | CN102517455A Method for recovering cadmium from copper cadmium residues |
| 06/27/2012 | CN102517451A Method for recovering tellurium copper from tellurium slag |
| 06/27/2012 | CN102517445A Method for extracting minerals from olivine-serpentine ore |
| 06/27/2012 | CN102513062A Selective complexing agent loaded graphitized carbon black and its application in palladium extraction |
| 06/27/2012 | CN102513006A Stirring device for leaching of manganese ore |
| 06/27/2012 | CN102212698B Method for recovering nickel sulfate through comprehensive treatment of nickel-containing waste |
| 06/27/2012 | CN102071320B Solar cell germanium substrate slice processing liquid waste treatment process |
| 06/27/2012 | CN102021330B Leaching method capable of reducing leached acid consumption of uranium ores |
| 06/27/2012 | CN101792864B Hyperbaric oxygen acid leaching process for cogenerating calcium sulfate whiskers from copper-sulphide ores |
| 06/27/2012 | CN101191151B Process for extraction of nickel, cobalt, and other base metals from laterite ores by using heap leaching and product containing nickel, cobalt, and other metals from laterite ores |
| 06/26/2012 | US8206682 Method for recovering catalytic elements from fuel cell membrane electrode assemblies |
| 06/26/2012 | US8206595 Method of recovering silver using anion-exchange resin |
| 06/26/2012 | CA2638395C Method of obtaining copper from ore |
| 06/21/2012 | WO2012081953A1 Means for the leaching of copper from refractory minerals |
| 06/21/2012 | WO2012081897A2 Method for enrichment-recovering ferronickel from raw material containing nickel, method for recovering nickel from enriched ferronickel, and method for recycling solution containing iron produced from same |
| 06/21/2012 | WO2012081896A2 Method for recovering nickel from raw material containing nickel |
| 06/21/2012 | WO2012081645A1 Method for separating positive-pole active substance and method for recovering valuable metals from lithium ion battery |
| 06/21/2012 | WO2012080659A2 System and method for collecting compounds in the ground |
| 06/21/2012 | WO2012079130A1 Extraction of metals |
| 06/21/2012 | WO2012079129A1 Extraction of gold |
| 06/21/2012 | WO2012079111A1 Heap leaching of manganese-containing ores |
| 06/21/2012 | US20120152065 Chemical agents for recovery of leached materials |
| 06/21/2012 | CA2820855A1 A method for improving rheological properties of mineral slurry |
| 06/20/2012 | CN102505078A Process for detoxifying and removing sodium from chromic slag through alkaline method |
| 06/20/2012 | CN102505076A Method for producing zinc powder and battery fluid from battery zinc anode waste and battery waste fluid |
| 06/20/2012 | CN102505072A Thiorhodanine reagent and application thereof in solid-phase extraction of palladium |
| 06/20/2012 | CN102505071A Glass fiber reinforced plastic centrifugal extractor and method for implementing extraction transformation of metal compounds |
| 06/20/2012 | CN102505070A Horizontal pressure leaching reaction kettle |
| 06/20/2012 | CN102503003A Photoreduction/liquid-liquid-liquid three-phase extraction coupled method for removing and recycling chromium |
| 06/20/2012 | CN102094126B Process for smelting zinc with wet method of high temperature and high acid-jarosite iron removing-iron vitriol slag pickling by two stages |
| 06/20/2012 | CN102080161B Method for comprehensively recovering tungsten and phosphorus from high phosphorus white tungsten ores |
| 06/20/2012 | CN102021335B Method for separating zirconium from hafnium by using elution extraction method |
| 06/20/2012 | CN102002590B Application of cyclophane amide compound containing three central hydrogen bonds as extracting agent in separation of rare-earth elements |
| 06/20/2012 | CN101899568B Method for producing electrolytic nickel by leaching chemically precipitated nickel sulfide with pure oxygen |
| 06/20/2012 | CN101713028B Method for washing anode slime of electrolytic lead bismuth alloy |
| 06/14/2012 | WO2012078532A1 Method and apparatus for leaching metal from mining ore |
| 06/14/2012 | WO2012078019A2 Electrorecovery of gold and silver from thiosulphate solutions |
| 06/14/2012 | WO2012076981A1 Co-current and counter current resin-in-leach in gold leaching processes |
| 06/14/2012 | WO2012075596A1 Method for leaching copper oxide, replacing sulfuric acid with a non-polluting organic leaching agent |
| 06/14/2012 | WO2012075521A1 An improved micronutrient fertiliser and method for producing same |
| 06/14/2012 | WO2012005545A4 Method for economical extraction of lithium from solution including lithium |
| 06/14/2012 | US20120148461 Process for multi metal separation from raw materials and system for use |
| 06/14/2012 | CA2821042A1 Gold and silver electrorecovery from thiosulfate leaching solutions |
| 06/14/2012 | CA2820700A1 Co-current and counter current resin-in-leach in gold leaching processes |
| 06/14/2012 | CA2819585A1 Method for leaching copper oxide, replacing sulphuric acid with a non-polluting organic leaching agent |
| 06/14/2012 | CA2790118A1 Method and apparatus for leaching metal from mining ore |
| 06/13/2012 | EP2462249A2 Process for the recovery of metals such as nickel from an iron-containing ore by leaching with acidic sulfate solution |
| 06/13/2012 | CN102492853A P-NBR type reagent and application of p-NBR type reagent in solid-phase extraction of platinum |
| 06/13/2012 | CN102492849A Wet treatment method of cadmium slag |
| 06/13/2012 | CN102492842A Method and equipment for purifying zinc sulfate solution |
| 06/13/2012 | CN102492841A Two-stage iron removal method for iron-containing solution |
| 06/13/2012 | CN102492840A Non-reflux mixing and clarifying extraction equipment |
| 06/13/2012 | CN102492839A Reactor for digesting heavy metal in tailings by microorganism |
| 06/13/2012 | CN102492838A Spray device for heap-leaching field and spray technology therefor |
| 06/13/2012 | CN102161977B New alicyclobacillus strain and application thereof in bioleaching |
| 06/13/2012 | CN102080157B Method for decomposing scheelite |
| 06/13/2012 | CN101802234B Limonite and saprolite heap leach process |
| 06/12/2012 | US8197575 Laterite heap leaching with ferrous lixiviants |
| 06/07/2012 | WO2012071640A1 A method for producing high-purity metallurgical-grade silicon metal by means of purification with metals and other compounds, followed by leaching |
| 06/07/2012 | WO2012050317A3 Method for recovering valuable metals from lithium secondary battery wastes |
| 06/07/2012 | US20120137830 Method for extracting hexavalent chromium in a polymer material |
| 06/06/2012 | EP2460898A1 Chemical method for removing copper sulphide (Cu2S) deposited onto insulating material in a transformer |
| 06/06/2012 | EP2459760A1 Increase in the separation factor between americium and curium and/or between lanthanides in a liquid-liquid extraction process |
| 06/06/2012 | EP2459759A1 Method for selectively recovering americium from an aqueous nitric phase |
| 06/06/2012 | EP2459522A1 Dialkyldiaza-tetraalkyloctane diamide derivatives useful for the separation of trivalent actinides from lanthanides and process for the preparation thereof |
| 06/06/2012 | EP2268840B1 Adsorption method for reclaiming molybdate or tungstate from aqueous solutions |
| 06/06/2012 | EP1622721B1 Method for desorbing material |
| 06/06/2012 | CN102485922A Method for extracting nickel, cobalt, magnesium and iron from laterite-nickel ore under conditions of normal temperature and normal pressure and using waste residues |
| 06/06/2012 | CN101967555B Method for dipping and decomposing bastnaesite after activation |
| 06/06/2012 | CN101886173B Comprehensive recycling process of xanthate cobalt residue in zinc hydrometallurgy |
| 06/06/2012 | CN101831542B Method for extracting metallic elements of ferrum, magnesium and calcium from molybdenum milltailings |
| 05/31/2012 | WO2012070769A1 Apparatus and method for adsorbing and desorbing lithium ions using a ccd process |
| 05/31/2012 | WO2012070193A1 Leaching solution and metal collection method |
| 05/31/2012 | WO2012069703A1 Pump |
| 05/31/2012 | WO2012069625A1 Process for the selective removal of molybdenum from a solution containing it |
| 05/31/2012 | WO2012069573A1 Process for separating americium from other metallic elements present in an acidic aqueous or organic phase and applications thereof |
| 05/31/2012 | WO2012068668A1 Treatment of indium gallium alloys and recovery of indium and gallium |
| 05/31/2012 | WO2012068639A1 Extraction of alkali metals and/or alkaline earth metals for use in carbon sequestration |
| 05/31/2012 | WO2012068621A1 For recovering zinc and/or zinc oxide i |
| 05/31/2012 | WO2012068620A1 Process for recovering zinc and/or zinc oxide ii |