| Patents for C22B 11 - Obtaining noble metals (5,080) |
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| 02/05/2013 | US8366991 Apparatus for recovering platinum group elements |
| 02/05/2013 | CA2454812C Method for improving metals recovery using high temperature pressure leaching |
| 01/30/2013 | CN102906286A System and method for recycling rare metals |
| 01/30/2013 | CN102899499A Process and device for recovering noble metals of zinc smelting acid leaching residues |
| 01/30/2013 | CN102899498A Method for leaching platinum metals from spent automobile exhaust catalyst |
| 01/30/2013 | CN102899496A Insoluble electrode recovery method |
| 01/30/2013 | CN102899493A Method for recovering valuable metals from chlorine leaching displacement tailing solution in production of precious metals |
| 01/30/2013 | CN102899489A Method for recovering gold from electronic wastes by using solidified persimmon tannin |
| 01/30/2013 | CN102895952A Porous carbon material capable of selectively absorbing gold ions, preparation method and application of porous carbon material |
| 01/29/2013 | US8362304 Process for making glycol ether compositions useful for metal recovery |
| 01/24/2013 | DE102011106880A1 Use of natural mercury to prepare gold, where gold is prepared by pulsing neutron source containing higher amount of mercury isotope in addition to gold and thallium isotope and separating amalgam of e.g. gold-mercury from liquid mercury |
| 01/23/2013 | CN102893113A Rotary kiln and metal recovery method |
| 01/23/2013 | CN102888520A Method for efficiently extracting nickel, cobalt, copper and platinum group metals from complex nickel-copper concentrate |
| 01/23/2013 | CN102230084B Coated biological oxidation pretreatment method of low-level arsenic refractory gold ores |
| 01/23/2013 | CN102181634B Process for controlling alkalinity in large-scale dump leaching production process of oxidized gold ores |
| 01/22/2013 | US8357719 Muscle relaxant using negatively charged gold nanoparticles with choline |
| 01/16/2013 | CN102876884A Beneficiation method for high-carbon fine particle embedded gold ore |
| 01/16/2013 | CN102874956A Novel treatment process for mercurous industrial waste water |
| 01/16/2013 | CN102139196B Continuous chlorination horizontal pipe type device |
| 01/09/2013 | CN202658210U Liquor heating device after gold replacement |
| 01/09/2013 | CN102869449A Method for recovering valuable metals |
| 01/09/2013 | CN102864312A Method for recovering silver and copper from electrolytic zinc waste residues |
| 01/09/2013 | CN102864309A Method for recovering plated silver from waste LED lamps |
| 01/09/2013 | CN102352440B Method for recovering palladium sponge and bismuth from multi-metal catalyst utilized in sodium gluconate production |
| 01/09/2013 | CN102021340B Deep impurity removal technology for coarse gold powder |
| 01/08/2013 | CA2595475C Method and apparatus for the recovery of refractory mineral ores |
| 01/03/2013 | US20130004363 Nickel-free Sterling Silver Alloy Compositions and Method of Preparation |
| 01/02/2013 | EP2540846A2 Process for precious metal recovery from a sulphide ore or concentrate or other feed material |
| 01/02/2013 | CN102851506A Method for extracting and recovering silver from waste solar cell |
| 01/02/2013 | CN102851488A High temperature flue gas anti-glass arsenic waste heat recovery system of roasting dearsenification and method thereof |
| 01/02/2013 | CN102849823A Method for separating palladium from waste water by double-arm bonding-type alicyclic crownether silicon resin |
| 01/02/2013 | CN102162032B Method for recovering lead and silver from purification slag of zinc hydrometallurgy |
| 12/27/2012 | US20120328494 Method for recovering indium, silver, gold and rare, precious and base metals from complex oxide and sulfide ores |
| 12/26/2012 | EP2536860A1 Process for the recovery of gold from an ore in chloride medium with a nitrogen species |
| 12/26/2012 | CN102839287A Method for leaching platinum metals from automobile tail gas spent catalyst by microwave heating and melting |
| 12/26/2012 | CN102329959B Separation method of palladium from silver electrolyte |
| 12/26/2012 | CN102286663B Method for processing copper-contained gold mud |
| 12/26/2012 | CN102251101B Process for extracting gold from carbonaceous gold concentrate |
| 12/20/2012 | WO2012171486A1 Methods of rapid preparation of silver nanowires with high aspect ratio |
| 12/19/2012 | CN102828044A Silver and copper molten pool smelting furnace with adjustable outlet smoke flow velocity device |
| 12/19/2012 | CN102828042A Method for extracting silver from silver-containing crude tin alloy |
| 12/19/2012 | CN102828029A Method for preliminarily separating valuable metals from copper anode slime |
| 12/19/2012 | CN102828020A Method for closed cycle high-efficiency comprehensive recovery of multiple elements of gold concentrate |
| 12/19/2012 | CN102181644B Method for reclaiming rare noble metals from waste circuit board |
| 12/18/2012 | US8333823 Method and system for producing metallic iron nuggets |
| 12/18/2012 | CA2584926C Extraction process |
| 12/13/2012 | WO2012170291A2 Nanowire preparation methods, compositions, and articles |
| 12/12/2012 | CN202595232U Thermochemical gold separating and hydrogen manufacturing producer |
| 12/12/2012 | CN102822361A Efficient method for collection of platinum-group element from copper-iron scrap |
| 12/12/2012 | CN102815828A System for recycling gold and cyanides in cleaning solution in surface treatment wet process |
| 12/12/2012 | CN102337391B Process method for recovering indium, germanium and other valuable metals from indium concentrate |
| 12/12/2012 | CN102251122B Process for silver extraction by acidifying calcination and leaching of lead silver slag |
| 12/12/2012 | CN102134652B Process for preliminarily separating antimony from gold in antimony-gold material |
| 12/06/2012 | US20120304828 Process of leaching gold |
| 12/05/2012 | CN202576517U Glass arsenic-preventing waste heat recovering system for high-temperature flue gas generated by removing arsenic by roasting |
| 12/05/2012 | CN102808084A Method for enriching platinum and palladium from pressurized cyanating solution |
| 12/05/2012 | CN102212702B Device and method for recovering electroplating colloidal palladium |
| 12/04/2012 | US8323377 Recovery of metals from oxidised metalliferous materials |
| 12/04/2012 | CA2664756C Method for thiosulfate leaching of precious metal-containing materials |
| 11/29/2012 | WO2012161216A1 Complex and uses thereof |
| 11/28/2012 | EP2527477A1 Efficient method for collection of platinum-group element from copper-iron scrap |
| 11/28/2012 | EP2526213A1 Hydrometallurgical process and method for recovering metals |
| 11/28/2012 | CN102796883A Oxygen-enriched side-blown smelting furnace for complicated and unworkable gold concentrate |
| 11/28/2012 | CN102796878A Method for enriching rhodium from rhodium-containing organic waste liquid |
| 11/28/2012 | CN102796877A Method for enriching rhodium from rhodium-containing organic dead catalyst |
| 11/28/2012 | CN102796874A Technology for recovering gold and silver from electronic waste by new biological method |
| 11/28/2012 | CN102796873A Method for comprehensively recovering metallic cobalt, ruthenium and aluminum from Fischer-Tropsch synthesis dead catalyst Co-Ru/Al2O3 |
| 11/28/2012 | CN102796864A Method for activating and dissolving insoluble noble metal rhodium |
| 11/28/2012 | CN102071324B Process for extracting gold from high-grade gold concentrate |
| 11/22/2012 | WO2012121495A3 Method for recovering precious metal from polyketone polymerization reaction waste liquid |
| 11/21/2012 | CN202543286U Vacuum-negative pressure controllable flow gold melting system in process of gold purification |
| 11/21/2012 | CN202538644U Microfiltration process platinum recovery device for nitric acid production |
| 11/21/2012 | CN102787240A Method for comprehensive recovery of valuable metals from tin anode mud |
| 11/15/2012 | WO2012152408A1 Method for obtaining metals and rare earth metals from scrap |
| 11/15/2012 | WO2012151721A1 Wet process for pretreating carbonaceous refractory gold concentrate ore |
| 11/15/2012 | WO2012121496A3 Method for recovering platinum group metals from industrial waste containing platinum group metals |
| 11/15/2012 | CA2835166A1 Method for obtaining metals and rare earth metals from scrap |
| 11/14/2012 | CN102782165A Oxygen torch waste reclamation system and acid recovery |
| 11/14/2012 | CN102776382A Extraction process for precious metals |
| 11/14/2012 | CN102776368A Lead and zinc tailing recycling method |
| 11/14/2012 | CN102776362A Lead anode slime briquetting method and system |
| 11/14/2012 | CN102168176B Comprehensive recycling process for valuable metal roasting-cyaniding gold-containing tailing |
| 11/08/2012 | WO2012149631A1 A method for recovering indium, silver, gold and other rare, precious and base metals from complex oxide and sulfide ores |
| 11/08/2012 | US20120282347 Preparation of silver ion |
| 11/08/2012 | CA2833281A1 A method for recovering indium, silver, gold and other rare, precious and base metals from complex oxide and sulfide ores |
| 11/07/2012 | EP2520676A1 Device for recycling of precious metals |
| 11/07/2012 | CN202521612U Incineration treatment system for recovery of noble metal catalyst |
| 11/07/2012 | CN202519319U Resin ion exchange device for enriching noble metal |
| 11/07/2012 | CN102766768A Method for separating valuable metal from zinc smelting acid leaching slags |
| 11/07/2012 | CN102766767A Ion exchange recovery method for precious metal platinum in spent automobile exhaust catalyst |
| 11/07/2012 | CN102154544B Use method of sulfide as gold extraction auxiliary agent of sulfating roasting slag |
| 11/07/2012 | CN102051480B Method for preparing elemental gold by utilizing synchronous absorption of persimmon tannins |
| 11/07/2012 | CN102002596B Process for reclaiming bismuth and silver from bismuth refining slag |
| 11/06/2012 | CA2491894C Metal compound removal |
| 11/04/2012 | CA2739575A1 Electromagnetic process for increasing aqueous porosity of gold bearing ores |
| 11/01/2012 | WO2012149264A1 Process of precious metal recovery and color removal from an organosilicon product-containing liquid reaction medium |
| 10/31/2012 | CN102758081A Method for microwave plasma roasting and non-cyanogen gold leaching of sulfur-bearing gold mineral |
| 10/31/2012 | CN102758080A Method for microwave roasting and non-cyanogen gold leaching of sulfur-bearing gold mineral |
| 10/31/2012 | CN102758079A Energy-saving optimizing technology for microwave roasting and non-cyanogen gold leaching of sulfur-bearing gold mineral |
| 10/31/2012 | CN102061385B Defoaming method for bio-metallurgical stirred reactor |