| Patents for C22B 11 - Obtaining noble metals (5,080) |
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| 01/23/2007 | US7166145 Contacting a source material comprising at least one precious metal with a solution comprising an ammonium salt, a halogen salt and an oxidant, wherein the oxidant is gaseous and is provided to the solution by introduction liquid reagent and at least a second liquid reagent; recovering precious metal |
| 01/23/2007 | CA2367606C Oxidative pressure leach recovery using halide ions |
| 01/18/2007 | US20070014709 Recovering metals from sulfidic materials |
| 01/17/2007 | EP1743044A1 Method for recovery of palladium |
| 01/17/2007 | EP1651785B1 A process for recovering platinum group metals from ores and concentrates |
| 01/17/2007 | CN1295363C Poisonless extracting and refining method for noble metals |
| 01/17/2007 | CN1295356C Stable alkali thiourea system |
| 01/16/2007 | US7163570 Chromatography absorption; complexing; elution |
| 01/10/2007 | EP1740730A1 Method for recovering gold |
| 01/10/2007 | CN1293969C Method for preparing noble metal hollow ball |
| 01/09/2007 | CA2171715C Gold lixiviation using nitrogen and sulfur heterocyclic aromatic compounds |
| 01/04/2007 | US20070000351 Memorial jewelry using a precious metal pliable moldable substance |
| 01/03/2007 | CN1888097A Gold purifying resin process |
| 01/02/2007 | US7157062 In metal leaching; using surfactant mixtures |
| 01/02/2007 | US7156894 Leaching metal values from biooxided concentrate of sulfide minerals; hydrometallurgy |
| 12/13/2006 | CN1876854A Method for extracting gold from gold tailings |
| 12/13/2006 | CN1289698C Method for separating/ recovering platinum family metal |
| 12/07/2006 | US20060275652 Process for the concentration of noble metals from fluorine-containing fuel cell components |
| 12/06/2006 | EP1727916A1 Recovery of metals from oxidised metalliferous materials |
| 12/06/2006 | CN1872992A Breeding method for sludge in granules, and method for retreaving gold from waste liquor of containing gold by using the breeding method |
| 12/06/2006 | CN1872418A Method for recovering ruthenium catalyst carried by active carbon |
| 12/05/2006 | US7146248 Automated mineral processing systems and methods |
| 11/29/2006 | EP1725345A1 Use of liquid crystal displays and method for the use thereof |
| 11/23/2006 | WO2005035804A9 Recovery of precious metals from waste catalysts |
| 11/22/2006 | EP1576200B1 A process for the recovery of adsorbed palladium from spent silica |
| 11/22/2006 | CN1285769C Electrochemical decomposition method for high-temp. alloy |
| 11/15/2006 | EP1721676A2 Method for processing shredder residues and use of a lint fraction so produced |
| 11/15/2006 | CN1861816A Tech. of recovering old silver platinum noble metals from antimony-smelting waste slag |
| 11/15/2006 | CN1284870C Gold extracting process for high arsenic gold mine |
| 11/14/2006 | US7134619 separating waste catalysts of an internal-combustion engine having metallic catalyst carriers, without chemicals and toxic substances |
| 11/09/2006 | WO2006117101A1 Cleaning of oil- contaminated granular solids, in particular spent catalysts |
| 11/07/2006 | CA2293691C Method for separating and isolating precious metals from non precious metals dissolved in solutions |
| 11/01/2006 | CN1856585A Method for processing anode sludge |
| 10/31/2006 | US7129170 Method for depositing and etching ruthenium layers |
| 10/31/2006 | US7128840 Ultrasound enhanced process for extracting metal species in supercritical fluids |
| 10/26/2006 | US20060237300 Treatment of granular solids in a fluidized bed with microwaves |
| 10/25/2006 | CN1851016A Silicon waste-slice surface metal removal and noblemetal silver-platinum-gold recovery method |
| 10/24/2006 | US7125436 During metal recovery process from an ore, a seeding agent is introduced to provide a nucleation site for the crystallization and/or growth of solid species which otherwise tend to passivate the reactive process or encapsulate the metal value |
| 10/18/2006 | CN1280433C Chlorination treatment process of Se contg. substance |
| 10/17/2006 | US7122167 Precious metal recovery from organics-precious metal compositions with supercritical water reactant |
| 10/11/2006 | CN1846004A Method for recovery of palladium from spent catalyst |
| 10/05/2006 | US20060222580 Modification of copper/iron selectivity in copper solvent extraction systems |
| 10/05/2006 | US20060219571 Electrogenerated chlorine or chloride compound leaching and its apparatus |
| 10/04/2006 | CN1840717A Process for producing gold by conglomeration, oxidizing roasting, and sodium cyanide leaching of primary gold ore |
| 09/28/2006 | US20060213331 Method for reducing metal oxide and method for producing hydrogen |
| 09/28/2006 | US20060213323 Method for recovering platinum group elements |
| 09/27/2006 | CN1837384A Method for separating Te from Rh solution |
| 09/27/2006 | CN1837382A Cooperated leaching method for low-grade intractable gold mine |
| 09/21/2006 | WO2005083131A8 Extractants for palladium and process for separation and recovery of palladium |
| 09/19/2006 | US7108839 Process for the recovery of palladium from spent silica |
| 08/31/2006 | US20060191377 Method for processing elemental sulfur-bearing materials using high temperature pressure leaching |
| 08/31/2006 | DE102005009574A1 Aqueous cyanide composition, useful in the preparation of metal, comprises a non-ionic surfactant with sodium hydroxide |
| 08/30/2006 | CN1826420A Precious metal recovery using thiocyanate lixiviant |
| 08/24/2006 | WO2006087413A1 Method for the recovery of gold from a gold-containing solution |
| 08/24/2006 | WO2006087412A1 Method for the recovery of gold from sulphide concentrate |
| 08/24/2006 | US20060185475 Reducing cyanide consumption in gold recovery from finely ground sulphide ores and concentrates |
| 08/24/2006 | CA2598181A1 Method for the recovery of gold from a gold-containing solution |
| 08/24/2006 | CA2598055A1 Method for the recovery of gold from sulphide concentrate |
| 08/16/2006 | EP1604047B1 Method for the refinement of gold |
| 08/16/2006 | EP1497473B1 Method for the recovery of gold |
| 08/16/2006 | CN1818103A Method for enriching platinum-group noble metal from adnic |
| 08/16/2006 | CN1818098A Comprehensive recovery for bullion ore with various metals |
| 08/09/2006 | CN1814831A Wet preprocessing method for difficult-to-treat gold ore containing arsenic and antimony |
| 08/02/2006 | EP1456423B1 Electromagnetic pyrolysis metallurgy |
| 08/01/2006 | US7083731 Binding to polymer fibers |
| 07/26/2006 | CN1809940A Process for the concentration of noble metals from fluorine-containing fuel cell components |
| 07/25/2006 | CA2411796C Purification of metals from mixtures thereof |
| 07/25/2006 | CA2221781C Chloride assisted hydrometallurgical extraction of metal |
| 07/19/2006 | EP1606424B1 Method for the fine refinement of gold |
| 07/19/2006 | CN1265003C Method for chloridizing roasting and ammonia extraction of silver and manganese products for manganese silver finished ore |
| 07/18/2006 | CA2272037C Flotation and cyanidation process control |
| 07/13/2006 | WO2006073840A1 Platinum recovery from nanostructured fuel cell catalyst |
| 07/13/2006 | WO2006073807A1 Platinum recovery from fuel cell stacks |
| 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 | 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 | CN1800421A Recovering process of valent metal from crude bismuth |
| 07/06/2006 | WO2006069738A1 Use of non-ionic surfactants in the production of metals |
| 07/06/2006 | US20060147791 Platinum recovery from fuel cell stacks |
| 07/06/2006 | US20060147360 Method for extracting copper with solvent |
| 07/06/2006 | US20060144791 Platinum recovery from nanostructured fuel cell catalyst |
| 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 | CA2592095A1 Use of nonionic surfactants in metal extraction |
| 06/29/2006 | WO2006066391A1 Reduction of lime consumption when treating refractory gold ores or concentrates |
| 06/29/2006 | CA2593474A1 Reduction of lime consumption when treating refractory gold ores or concentrates |
| 06/28/2006 | CN1795146A Method of separation/purification for high-purity silver chloride and process for producing high-purity silver by the same |
| 06/27/2006 | US7067090 Recovery of platinum group metals |
| 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 | US7066981 Mixing sample with flux; preheating; melting, separation |
| 06/22/2006 | WO2006064350A1 Extraction process for metals like gold and platinum including fine grinding, pulping and oxygenating |
| 06/22/2006 | US20060133974 controlling the formation of basic iron sulphate and/or jarosites when pressure oxidizing precious metal-containing sulphide feed materials; 2Fe(SO4)(OH)(s)+H2SO4=Fe2(SO4)3(aq)+2H2O, neutralization with limestone or cao to form Fe/OH/3 and gypsum |
| 06/22/2006 | CA2590531A1 Extraction process for metals like gold and platinum including fine grinding, pulping and oxygenating |
| 06/21/2006 | CN1260379C Chemical bulk stack dipping process for gold-containing tailing ore without pelletizing |
| 06/21/2006 | CN1260378C Method for separating rhodium from iridium solution by hydrogen reduction |
| 06/15/2006 | WO2005047856A3 Automated mineral processing systems and methods |
| 06/14/2006 | CN1788095A Recovery of platinum group metals |
| 06/14/2006 | CN1788094A Recovery of metal values from cermet |
| 06/14/2006 | CN1786224A Method for separating and recovering Ru from solution containing pt family |