| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 09/19/2012 | CN102677095A Method for recovering lead in lead plaster of waste lead-acid storage batteries |
| 09/19/2012 | CN102676879A Alloy zinc powder for zinc hydrometallurgy using antimonic salt to purify and remove combat and preparation method thereof |
| 09/19/2012 | CN102676853A Rare earth separation method with material linkage cyclic utilization function |
| 09/19/2012 | CN102676845A Filter residue obtained after purifying zinc liquid and preparation method of filter residue |
| 09/19/2012 | CN102676838A Gold extraction method employing gold cyanided tailing roasting-ultrasonic intensification thiourea gold leaching-activated carbon enrichment |
| 09/19/2012 | CN102676837A Method for recycling palladium from silver electrolyte by using dimethylglyoxime |
| 09/19/2012 | CN102676830A Method for extracting scandium oxide from tungsten steel slag |
| 09/19/2012 | CN102676822A Burning-free non-cyaniding method for treating waste printed circuit board |
| 09/19/2012 | CN102676821A Iron, nickel and chromium recovery method for cathode-ray tube metal part |
| 09/19/2012 | CN102676820A Treatment method of zinc sulfate leach solution |
| 09/19/2012 | CN102676819A Alloy zinc powder for zinc hydrometallurgy to purify and remove combat and preparation method thereof |
| 09/19/2012 | CN102676818A Prediction method for zinc powder effectiveness coefficient in wet zinc smelting and copper removal process |
| 09/19/2012 | CN102676817A Method for preparing calciferous vanadium oxide from vanadate |
| 09/19/2012 | CN102676816A Method for treating zinc sulfate leach liquor |
| 09/19/2012 | CN102676815A Method for removing iron from leach liquor at two stages |
| 09/19/2012 | CN102676814A Method for removing impurity ferrum in nickel sulfate solution |
| 09/19/2012 | CN102676813A New process for treating interphase dirt produced by P204 extraction system |
| 09/19/2012 | CN102676812A Device for recycling organic entrained spent acid extracted through wet process and recycling method by using recycling device |
| 09/19/2012 | CN102676811A Method and system for extracting EuCl3-rich solution |
| 09/19/2012 | CN102676810A Method for separating and recycling vanadium and chromium from vanadate-chromate-containing solution |
| 09/19/2012 | CN102676809A Arsenic-alkali separation method for leaching agent after removing antimony from sodium carbonate type arsenic-alkali slag in antimony smelting process |
| 09/19/2012 | CN102676808A Method for separating chrome vanadium from vanadium slag decomposition liquid |
| 09/19/2012 | CN102676807A Method for leaching manganese oxide |
| 09/19/2012 | CN102676806A Method for reduction leaching of cobaltic materials by sulfur dioxide |
| 09/19/2012 | CN102676805A Low grade zinc concentrate associated lead and silver recovery process |
| 09/19/2012 | CN102676804A Method for treating zinc sulfide concentrate powder |
| 09/19/2012 | CN102676803A Resource utilization method for catalytic oxidation leaching of molybdenum and nickel from molybdenum-nickel ore |
| 09/19/2012 | CN102676802A Autoclave |
| 09/19/2012 | CN102676801A Pressurized leaching kettle |
| 09/19/2012 | CN102671566A Leaching tank stirring device having defoaming function |
| 09/19/2012 | CN102671560A Aerating device of oxidizing groove equipment |
| 09/19/2012 | CN102671422A Lift type stirring device used for leaching tanks |
| 09/19/2012 | CN102671421A Leaching tank with four-foot bottom |
| 09/19/2012 | CN102671403A Flash evaporating device and method for recovering steam by utilizing flash evaporating device |
| 09/19/2012 | CN102260793B Method for precipitating uranium from qualified uranium hydrometallurgy liquid by utilizing microwave irradiation technology |
| 09/19/2012 | CN102002594B Method for recycling tin |
| 09/19/2012 | CN101948124B Method for extracting lithium salt from spodumene |
| 09/18/2012 | US8268039 Process for atmospheric leaching of laterite ores using hypersaline leach solution |
| 09/18/2012 | US8268038 High temperature leaching process |
| 09/18/2012 | US8268037 Recovery of molybdenum from molybdenum bearing sulfide materials by bioleaching in the presence of iron |
| 09/18/2012 | CA2651516C Chloride heap leaching |
| 09/13/2012 | WO2012119219A1 Method and apparatus for treating waste materials |
| 09/13/2012 | WO2012119187A1 Process for leaching metals from laterite ores |
| 09/13/2012 | WO2012119174A2 Metal separation method |
| 09/13/2012 | US20120227545 Aqueous leaching process for recovery of precious metals with addition of di-thiooxamide ligand |
| 09/12/2012 | EP2496358A1 Mechanical pyrolysis in a shear retort |
| 09/12/2012 | CN102665887A Method and apparatus to create uniform mixing in connection with a hydrometalurgical process |
| 09/12/2012 | CN102660688A Method for recovering rare earth from waste rare earth luminescent material |
| 09/12/2012 | CN102660687A Method for recycling heavy metal resources of stainless steel pickling waste water neutralization sludge |
| 09/12/2012 | CN102660686A Method for treating waste cathode ray tube (CRT) cone glass by strengthening acid leaching through mechanical activation technology |
| 09/12/2012 | CN102660685A Method for recycling waste diamond tool |
| 09/12/2012 | CN102660683A Method for preparing barium plumbate powder by coprecipitation of copper anode mud silver separating residue of circuit board |
| 09/12/2012 | CN102660682A Liquid zinc purification process and liquid zinc purification equipment |
| 09/12/2012 | CN102660681A Liquid zinc purification process and zinc powder displacement method in liquid zinc purification |
| 09/12/2012 | CN102660680A Porous distributing valve for continuous adsorption exchange equipment |
| 09/12/2012 | CN102660679A Method for eluting Fe<3+> in P204 extracting agent |
| 09/12/2012 | CN102660678A Method for selectively separating iron from hydrochloric acid solution containing ferrous chloride |
| 09/12/2012 | CN102660677A Method for removing impurity copper in nickel chloride solution |
| 09/12/2012 | CN102660676A Method for separating rhenium and molybdenum in molybdenum-rhenium ore concentrate |
| 09/12/2012 | CN102660675A Cyanide leaching device for gold ore |
| 09/12/2012 | CN102659711A Methylene rhodanine reagent and application thereof in solid phase extraction of platinum |
| 09/12/2012 | CN102658234A Application method of defoaming agent to beneficiation and tailings discarding of stone coal vanadium ore and hydrometallurgy |
| 09/12/2012 | CN102220490B Production method for electrolytic manganese dioxide |
| 09/12/2012 | CN102127646B Method for reprocessing rare earth slag by acid composition |
| 09/12/2012 | CN102121066B Process for reducing consumption of hydrochloric acid during chlorination distillation of germanium-containing raw material |
| 09/12/2012 | CN102041388B Method for recycling metal from waste catalyst containing molybdenum and nickel |
| 09/12/2012 | CN102010991B Method for extracting lithium salt and removing potassium from lithium mica raw material |
| 09/12/2012 | CN101580901B Method for refining zinc by using slag containing zinc |
| 09/11/2012 | US8262984 Mixing, milling, and aeration apparatus for digesting metal ore with bacteria |
| 09/11/2012 | CA2530354C Method for producing concentrates |
| 09/10/2012 | CA2733685A1 Method and apparatus for treating waste materials |
| 09/06/2012 | US20120222519 Method of leaching copper and gold from sulfide ores |
| 09/05/2012 | CN102653824A Copper electrolysis barren solution demanganization method and continuous demanganization process and equipment |
| 09/05/2012 | CN102653823A Method used for separating rare earth from bastnaesite sulphuric acid leach solution and preparing ice stone |
| 09/05/2012 | CN102653820A Method for extracting scandium from baiyuneboite tailings |
| 09/05/2012 | CN102162031B De-ironing method for cobalt electrolyte |
| 09/05/2012 | CN102127029B 2-(thio-2-ethylhexyl)benzoxazole, preparation method thereof and palladium-platinum extraction method by using 2-(thio-2-ethylhexyl)benzoxazole |
| 09/05/2012 | CN102071313B Method for treating tungsten-containing and molybdenum-containing slag produced in ammonium paratungstate production process |
| 09/05/2012 | CN101935755B Two-stage leaching method for vanadium in vanadium-containing ore |
| 09/05/2012 | CN101818252B Non-volatile method for extracting zinc, iron and indium from solution of zinc, iron and indium |
| 09/05/2012 | CN101717869B Extraction and separation technology of uranium and molybdenum contained in uranium and molybdenum alloy diffuse-type fuel element |
| 09/05/2012 | CN101463427B Method for recycling valuable metal from cobalt white alloy |
| 09/04/2012 | CA2579351C Pressure leaching system and method |
| 08/30/2012 | WO2012115273A1 Method for extraction and separation of lanthanoid elements and actinoid elements, and means for extraction and separation of lanthanoid elements and actinoid elements |
| 08/30/2012 | WO2012114165A1 Energy efficient recovery of precious metals and base metals |
| 08/30/2012 | US20120219476 Methods Of Metal Extraction Using Oximes |
| 08/30/2012 | US20120219475 Compositions and Methods of Using a Ketoxime in a Metal Solvent Extraction Reagent |
| 08/30/2012 | US20120219474 Metal Solvent Extraction Reagents And Use Thereof |
| 08/30/2012 | DE102011000955A1 Verfahren zur Rückgewinnung von Hartstoffpartikeln A process for the recovery of hard material particles |
| 08/29/2012 | EP2492364A1 Wet smelting plant for nickel oxide ore and method for operating same |
| 08/29/2012 | CN202401114U Novel extraction box |
| 08/29/2012 | CN102650000A Method for recovering bismuth and arsenic from bismuth and arsenic-containing solution |
| 08/29/2012 | CN102649998A Method for separating and enriching copper, cadmium and zinc in copper and cadmium sediment |
| 08/29/2012 | CN102649997A Method for ammoniacal leaching |
| 08/29/2012 | CN102649996A Circular acid leaching extraction process for lepidolite |
| 08/29/2012 | CN102649995A Method for transforming wolframite into scheelite |
| 08/29/2012 | CN102220494B Method for separating palladium and copper from solution containing copper, cobalt and nickel by taking acylthiourea as extractant |
| 08/29/2012 | CN101974688B Method for separating chromium ions and iron ions in multicomponent solution |
| 08/29/2012 | CN101886177B Method for recovering cadmium from waste nickel-cadmium battery |
| 08/29/2012 | CN101831551B Method for recovering gold, silver, bismuth, stibium and copper from lead anode mud |