| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 03/29/2012 | US20120073407 Method of recovering metal values from nickel-containing ores |
| 03/28/2012 | CN102395692A Impurity removal from hydrated minerals |
| 03/28/2012 | CN102392144A Process method for recovering indium and germanium from germanium concentrate |
| 03/28/2012 | CN102392143A Recycling method of magnesium in silicate nickel oxide ore |
| 03/28/2012 | CN102392141A Method for separating tellurium from precious metals |
| 03/28/2012 | CN102392136A Process for comprehensively recovering high arsenic polymetallic material |
| 03/28/2012 | CN102392132A Iron stripping method without saponification |
| 03/28/2012 | CN102392131A Continuous saponification method of organic extractant |
| 03/28/2012 | CN102392130A Method for recovering lead and tin from zinc leaching residues |
| 03/28/2012 | CN102392129A Method and system of in-situ ore leaching and leachate discharge of ion adsorption type ore |
| 03/28/2012 | CN102392128A Acid adding device with accurate and automatic pH value control function |
| 03/28/2012 | CN102392126A Activating acid leaching method for extracting vanadium from bone coal |
| 03/28/2012 | CN102391904A Technology for increasing value of stone coal and extracting valuable metal elements |
| 03/28/2012 | CN102389642A Device for removing MIBK (Methyl Iso Butyl Ketone) from raffinate for MIBK extraction and zirconium and hafnium separation |
| 03/28/2012 | CN101805834B Non-destructive gallium-extracting method of gallium-contained porcelain clay |
| 03/27/2012 | CA2481729C Method for refining aqueous nickel chloride solution |
| 03/22/2012 | WO2012035207A1 Device and method for dispersing two solutions in each other in solvent extraction |
| 03/22/2012 | CA2812120A1 A method for the removal of organic chemicals and organometallic complexes from process water or other streams of a mineral processing plant using zeolite |
| 03/22/2012 | CA2810495A1 Device and method for dispersing two solutions in each other in solvent extraction |
| 03/21/2012 | EP2431331A1 Scorodite-type iron-arsenic compound particles, production method, and arsenic-containing solid |
| 03/21/2012 | EP2430201A1 Process for recovering metals and metal compounds from mined ore and other metal-bearing raw source materials |
| 03/21/2012 | CN202170355U 一种混合-澄清室型萃取分离装置 A hybrid - clarification chamber extraction separation device |
| 03/21/2012 | CN202169102U 一种用于铜电解液的除油装置 Degreasing apparatus for copper electrolyte |
| 03/21/2012 | CN102382994A Preparation method for radioactive 68Ge solution |
| 03/21/2012 | CN102382989A Method for dearsenization through hot leaching of arsenic alkali residue water |
| 03/21/2012 | CN102382988A Method for recovering metallic palladium from waste silicon oxide catalyst |
| 03/21/2012 | CN102382987A Method for recovering and regenerating positive electrode material of lithium ion battery |
| 03/21/2012 | CN102382986A Treatment method of furnace bricks of Kaldo furnace |
| 03/21/2012 | CN102382983A Improved method for extracting metal by polymer matrix three-liquid-phase system |
| 03/21/2012 | CN102382982A Method for separating rare earth ions by extraction of liquid-liquid-liquid three-phase system |
| 03/21/2012 | CN102382981A Method for purifying iron solution by adopting extraction chromatography |
| 03/21/2012 | CN102382980A Method for directly purifying cadmium from sponge cadmium |
| 03/21/2012 | CN102382979A Technique for extracting rare earth from rare earth tailing and preparing calcium sulfate whiskers |
| 03/21/2012 | CN102382704A Mixed fuel of acid leaching residue in vanadium extraction from stone coal |
| 03/21/2012 | CN102021329B Method for extracting tungsten from scheelite and producing high-quality calcined gypsum |
| 03/21/2012 | CN102021328B Method for extracting tungsten from scheelite |
| 03/21/2012 | CN101935756B Method for reclaiming rare-earth and organic phase from third phase of rare-earth extraction |
| 03/21/2012 | CN101824537B Ultra-pure gadolinium oxide and electrochemical reduction fully-closed type extracting production process thereof |
| 03/21/2012 | CN101818247B Selective heap leaching gold extraction process for gold mine containing copper |
| 03/21/2012 | CN101400607B Method of recovering rare earth element from composition containing rare earth fluoride |
| 03/20/2012 | US8137644 Method for the elimination of uranium (VI) species in the form of uranyl complexes from waters |
| 03/15/2012 | WO2012033077A1 Method of treating copper etching waste liquor |
| 03/15/2012 | WO2012031317A1 Heap leaching |
| 03/15/2012 | US20120060651 Controlled copper leach recovery circuit |
| 03/14/2012 | CN202164354U 酸性蚀刻液资源回收与环保处理设备 Acid etching solution recycling and environmental treatment equipment |
| 03/14/2012 | CN102373335A Method for recovering rhodium from inactivated rhodium-phosphine complex catalyst |
| 03/14/2012 | CN101899571B Process for producing nickel and cobalt from nickel and cobalt ores |
| 03/14/2012 | CN101886169B New process for extracting copper from copper-cobalt mine leachate |
| 03/14/2012 | CN101760645B Leaching method for magnesium-containing ore |
| 03/14/2012 | CN101705379B Method for recycling indium from silicon carbide materials containing indium |
| 03/13/2012 | CA2454013C Process for regenerating thiosulphate from a gold leaching stream |
| 03/07/2012 | CN102367522A Method for leaching manganese from manganese-rich slag |
| 03/07/2012 | CN102367515A Pressurizing and reductive leaching method of pyrolusite powder |
| 03/07/2012 | CN101920985B Process for removing oil from copper sulfate solution |
| 03/07/2012 | CN101748085B Biological indium extraction process in sphalerite concentrate ore |
| 03/01/2012 | WO2012026061A1 Metal recovery method and metal recovery device |
| 03/01/2012 | WO2012024744A2 Method for leaching of copper and molybdenum |
| 03/01/2012 | CA2808862A1 Method for leaching of copper and molybdenum |
| 02/29/2012 | CN102365378A Apparatus and method for removing impurities in connection with liquid-liquid extraction of copper |
| 02/29/2012 | CN102363890A Method for recovering metal copper in waste circuit board |
| 02/29/2012 | CN102363842A Process for recovering arsenic comprehensively by two-section roasting of arsenic-containing and carbon-containing gold concentrates |
| 02/29/2012 | CN102363839A Process for recovering silver, lead and bismuth from silver-bearing soot comprehensively |
| 02/29/2012 | CN101824555B Method for extracting scandium |
| 02/29/2012 | CN101778958B Atmospheric acid leach process for laterites |
| 02/29/2012 | CN101509072B Method for extracting valuable metals from laterite nickel mine with hydrochloric acid full-closed circulation method |
| 02/23/2012 | CA2808627A1 Processing of manganous sulphate/dithionate liquors |
| 02/22/2012 | EP2419545A1 Methods and systems for recoverying rhenium from a copper leach |
| 02/22/2012 | CN202148341U 一种蒸汽回收利用装置 A steam recycling system |
| 02/22/2012 | CN102362009A Metal recovery method and device |
| 02/22/2012 | CN102361994A Process for recovering metals from coal liquefaction residue containing spent catalysts |
| 02/22/2012 | CN102358919A Method for extracting valuable metal from submarine metallic ore |
| 02/22/2012 | CN102358918A Antimony removing method for ultra-pure tantalum pentoxide and niobium pentoxide |
| 02/22/2012 | CN102358917A Method for leaching manganese sulfate from low grade pyrolusite |
| 02/22/2012 | CN102358916A Hydrometallurgical extraction method for recycling copper and cobalt from cobalt copper oxide ores |
| 02/22/2012 | CN101928825B 一种金的湿法提纯方法 Wet purification method of payment |
| 02/22/2012 | CN101643853B 从锡烟尘中提取铟及回收有价金属的方法 Indium extraction and recovery of valuable metals from tin Dust method |
| 02/21/2012 | US8118907 Methods and systems for leaching a metal-bearing ore for the recovery of a metal value |
| 02/21/2012 | CA2636927C Method for separation and recovery of noble metals |
| 02/16/2012 | WO2012019383A1 Method for recycling lead from waste glass containing lead |
| 02/16/2012 | WO2012019265A1 A method for treating liquid effluents and recovering metals |
| 02/16/2012 | CA2811452A1 A process for treating liquid effluents and recovering metals |
| 02/15/2012 | EP2417272A1 Ionic liquid solvents of perhalide type for metals and metal compounds |
| 02/15/2012 | CN102352448A Method for recovering rare earth from low-concentration rare earth solution through prussian blue colloidal nanoparticles |
| 02/15/2012 | CN102352445A Zinc leached residue hot acid reduction leaching method |
| 02/15/2012 | CN102352437A Method for treating hydrochloric acid leachate of ferrotitanium materials |
| 02/15/2012 | CN102352436A Method for separating U (uranium) from Pu (plutonium) in Purex process |
| 02/15/2012 | CN102352435A Efficient leaching technology of metal ions in chrysotile nanofiber |
| 02/15/2012 | CN102352434A Fluidization leaching method and device adopting spiral rotor and purpose |
| 02/15/2012 | CN102071314B 一种酸性萃取剂的碱土金属皂化及其萃取方法 An acidic alkaline earth metal extraction agent saponification and extraction methods |
| 02/15/2012 | CN101589163B 从含有铟和氯化铁的蚀刻废液回收铟的方法及其装置 Indium from etching waste recycling method and apparatus for containing indium and ferric chloride |
| 02/14/2012 | US8114365 Silica removal from pregnant leach solutions |
| 02/09/2012 | WO2012016513A1 Liquid guiding and collection process with secondary channels for in situ leaching |
| 02/09/2012 | WO2012016511A1 Process for in-situ leaching by liquid injection |
| 02/08/2012 | CN202136838U 活性炭过滤装置 Activated carbon filtration device |
| 02/08/2012 | CN102345022A Terres rares metal agglutinant |
| 02/08/2012 | CN102345020A Method for separating and recycling vanadium and chromium in solution |
| 02/08/2012 | CN102345019A Method for processing limonite lateritic nickel |
| 02/08/2012 | CN102345018A Method for processing nickel oxide ores |
| 02/08/2012 | CN102345015A Method for removing thallium in process of producing refined cadmium with high-temperature dust generated by acid preparing system |
| 02/08/2012 | CN102345014A Method for preparing elementary copper, copper hydroxide and sodium chloride through dye waste residues |