| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 08/23/2006 | CN1821427A Hydrothermal method for recovering metal from waste hard alloy |
| 08/23/2006 | CN1821060A Method for leaching tellurium from copper anode mud using pressurized acid leaching process |
| 08/23/2006 | CN1271224C Process for electrolytic production of highly pure zinc or zinc compounds from primary and secondary zinc raw materials |
| 08/23/2006 | CN1270799C Processing method for antibiotics bacterial slag containing zinc |
| 08/17/2006 | WO2006084950A1 Method for the treatment of copper-bearing materials |
| 08/17/2006 | WO2006084335A1 Process for enhanced acid leaching of laterite ores |
| 08/17/2006 | US20060179977 Method for removing thallium from a zinc-containing solution |
| 08/17/2006 | CA2597440A1 Process for enhanced acid leaching of laterite ores |
| 08/17/2006 | CA2597354A1 Method for the treatment of copper-bearing materials |
| 08/16/2006 | EP1689915A1 Apparatus and method for the reduction of metals |
| 08/16/2006 | EP1604047B1 Method for the refinement of gold |
| 08/16/2006 | EP1497474B1 Method for the purification of copper chloride solution |
| 08/16/2006 | EP1497473B1 Method for the recovery of gold |
| 08/16/2006 | EP1409753B1 Solvent extraction of impurities from concentrated metal sulphate solutions |
| 08/16/2006 | EP1339883B1 Method for the hydrolytic precitpitation of iron |
| 08/16/2006 | EP1242637B1 A bacterially assisted heap leach |
| 08/16/2006 | CN1818100A Supercritical separating method and system for waste printing circuit boards |
| 08/16/2006 | CN1818098A Comprehensive recovery for bullion ore with various metals |
| 08/16/2006 | CN1817403A Saponification of organic extractant |
| 08/16/2006 | CN1269600C Non-magnetic nickel powders and method for preparing the same |
| 08/10/2006 | WO2006081605A1 Process for the production of magnesium oxide |
| 08/10/2006 | US20060177363 Production of titania |
| 08/10/2006 | CA2596442A1 Process for the production of magnesium oxide |
| 08/09/2006 | CN1814831A Wet preprocessing method for difficult-to-treat gold ore containing arsenic and antimony |
| 08/09/2006 | CN1814830A Method for removing ferrous-iron from manganese sulfate |
| 08/09/2006 | CN1814829A Method for removing heavy-metal ions from manganese sulfate solution |
| 08/09/2006 | CN1814828A Method for increasing metal-extracting efficiency of 1,, (2-ethyl-hexyl) phosphate |
| 08/09/2006 | CN1814827A Method for separating and recovering cobalt and molybdic from waste cobalt-molybdic catalyst |
| 08/09/2006 | CN1814826A Non-ferrous metal tailings re-selecting and utilizing method |
| 08/08/2006 | US7087102 Process for purification of germane |
| 08/03/2006 | WO2006080565A1 Method for recovering indium |
| 08/03/2006 | US20060170139 Separating vessel |
| 08/03/2006 | US20060169643 Method for controlling oxygen when separating minerals from a slurry |
| 08/03/2006 | US20060169104 Recovering nickel |
| 08/02/2006 | EP1587964A4 Process for nickel and cobalt extraction from laterite ores |
| 08/01/2006 | US7083731 Binding to polymer fibers |
| 08/01/2006 | CA2394631C Method to control manganese in zinc leach circuits |
| 08/01/2006 | CA2295468C Separation and concentration method |
| 07/27/2006 | WO2006078901A2 Process for the recovery of materials from a desulfurization reaction |
| 07/27/2006 | US20060166057 Method of making nanoparticulates and use of the nanoparticulates to make products using a flame reactor |
| 07/27/2006 | DE10297680B4 Extraction of nickel from spent nickel catalyst involves direct leaching with sulfuric acid in presence of small amount of persulfate-based additive |
| 07/26/2006 | EP1682687A1 Method for removing thallium from a zinc-containing solution |
| 07/26/2006 | EP1361296B1 Method for electrolytic production of ultra-pure zinc or zinc compounds from zinc primary and secondary raw materials |
| 07/26/2006 | CN1807665A Method for electrolysing zinc using alkaline pickling method |
| 07/26/2006 | CN1266291C Method for purifying the solution in the hydrometallurgical processing of copper |
| 07/25/2006 | CA2221781C Chloride assisted hydrometallurgical extraction of metal |
| 07/20/2006 | US20060159603 combining a metal compound (AgNO3) with a solution that comprises a polyol (ethylene glycol)and a substance( polyvinypyrrolidone homo or copolymer) that is capable of being adsorbed on the nanoparticles. The nanoparticles are precipitated by adding a nanoparticle-precipitating liquid (acetone) |
| 07/19/2006 | EP1680521A1 Production of titania |
| 07/19/2006 | EP1606424B1 Method for the fine refinement of gold |
| 07/19/2006 | EP1309392B1 Method for metal recovery from aqueous solutions |
| 07/19/2006 | CN1805794A Method and apparatus for desorbing material |
| 07/19/2006 | CN1805793A A resin and process for extracting non-ferrous metals |
| 07/19/2006 | CN1805773A Method and equipment for purifying an extraction solution from aqueous entrainment and impurities. |
| 07/19/2006 | CN1804064A Preparation method of high-purity single rare earth |
| 07/19/2006 | CN1804063A Process for extracting rare earth element by non-saponifiable phosphorous mixing extractant |
| 07/19/2006 | CN1804062A Crude indium and active zinc oxide co-production process |
| 07/19/2006 | CN1804061A Heap-leaching indium-extracting process for zinc distillation furnace dross |
| 07/19/2006 | CN1804060A Wet chemical method for lead zinc composite extraction from lead zinc tailings |
| 07/19/2006 | CN1265003C Method for chloridizing roasting and ammonia extraction of silver and manganese products for manganese silver finished ore |
| 07/19/2006 | CN1265001C Technology for leaching copper sulfide ore using copper ore acidic ore pit water containing bacteria |
| 07/13/2006 | WO2006073807A1 Platinum recovery from fuel cell stacks |
| 07/13/2006 | US20060153768 Production of titania |
| 07/13/2006 | US20060151399 Metal compound removal |
| 07/13/2006 | DE60302062T2 Trennung von metallen der platingruppe Separation of the platinum group metals |
| 07/12/2006 | EP1678337A1 Method for decontaminating material containing hexavalent chrome |
| 07/12/2006 | EP1678336A1 A process for the recovery of value metals from base metal sulfide ores |
| 07/12/2006 | EP1501952A4 Process for extracting platinum group metals |
| 07/12/2006 | CN1802445A A solvent extraction process |
| 07/12/2006 | CN1800422A Method for processing cobalt copper alloy |
| 07/12/2006 | CN1800421A Recovering process of valent metal from crude bismuth |
| 07/12/2006 | CN1800362A Acidophilic leptospirillumferrooxidans and its uses |
| 07/06/2006 | WO2006070052A1 Method for the hydrometallurgical treatment of sulfide concentrate containing several valuable metals |
| 07/06/2006 | WO2006069760A1 Use of surfactants in the production of metal |
| 07/06/2006 | WO2006069416A1 Extraction of nickel and cobalt from a resin eluate stream |
| 07/06/2006 | US20060148933 Treatment of aqueous compositions containing contaminants |
| 07/06/2006 | US20060147791 Platinum recovery from fuel cell stacks |
| 07/06/2006 | US20060147360 Method for extracting copper with solvent |
| 07/06/2006 | US20060144192 Hydrometallurgical process for the most complete metal extraction while preventing elementary sulfur formation; sulfide minerals oxidation in aqueous slurry using nitrogen oxides under controlled acidity; sulfuric acid formed neutralized constantly by calcium/magnesium salts |
| 07/06/2006 | US20060144191 Method for recovery of nonferrous, rare and precious metals from robust minerals |
| 07/06/2006 | US20060144189 Method for preparing colloidal solution and carrier having colloidal particles fixed on surface thereof, fuel cell cathode, fuel cell anode and method for preparing the same and fuel cell using the same, and low temperature oxidation catalyst, method for preparing the same and fuel cell fuel modifying device using the same |
| 07/06/2006 | DE102004063500A1 Verwendung von Tensiden bei der Metallgewinnung Use of surfactants in the metal extraction |
| 07/06/2006 | CA2593706A1 Extraction of nickel and cobalt from a resin eluate stream |
| 07/06/2006 | CA2592098A1 Use of surfactants in metal extraction |
| 07/06/2006 | CA2591887A1 Method for the hydrometallurgical treatment of sulfide concentrate containing several valuable metals |
| 07/06/2006 | CA2591884A1 Modified amine-aldehyde resins and uses thereof in separation processes |
| 07/05/2006 | CN1796608A Method and equipment for purifying ytterbium and gathering thulium and lutetium |
| 07/05/2006 | CN1262678C Method for removing zinc and cobalt in cobalt dregs generated in zinc hydrometallurgy by using ultrasonic separation |
| 07/05/2006 | CN1262677C Refined method for copper materials containing copper sulphide minerals |
| 07/04/2006 | US7069690 Demetallization, dephosphatizing; water pollution control |
| 07/04/2006 | CA2363031C Improved methods for leaching of ores |
| 06/29/2006 | WO2006066391A1 Reduction of lime consumption when treating refractory gold ores or concentrates |
| 06/29/2006 | US20060138050 Method and apparatus for metal removal by ION exchange |
| 06/29/2006 | CA2593474A1 Reduction of lime consumption when treating refractory gold ores or concentrates |
| 06/28/2006 | EP1673158A2 Apparatus for enhancing solubility |
| 06/28/2006 | EP1567683B1 Method for removing mercury from solutions which are contaminated with mercury |
| 06/28/2006 | CN1793391A Process for mfg., enriched titanium material by electric furnace titanium slag |
| 06/27/2006 | US7066983 Thiosulfate lixiviants that include at most only small amounts of copper and/or ammonia and operate at low ph, reduction of polythionates |
| 06/27/2006 | US7066982 Contaminant removal by ferns via foliar-application and excised/ground fronds |
| 06/27/2006 | US7065920 Contaminant removal by additional ferns |
| 06/22/2006 | WO2006064350A1 Extraction process for metals like gold and platinum including fine grinding, pulping and oxygenating |