| Patents for C22B 11 - Obtaining noble metals (5,080) |
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| 12/31/2008 | CN100447264C Method for recovering gold from waste of gold plating procedure |
| 12/25/2008 | US20080317649 Process for recausticizing cyanide leach solutions |
| 12/24/2008 | CN101331240A Method for the recovery of ruthenium from used ruthenium oxide-containing catalysts |
| 12/24/2008 | CN101328541A Gold wet purification process |
| 12/24/2008 | CN101328539A Oxidation oven ash hydrometallurgical leaching process |
| 12/18/2008 | US20080311647 Method of Biotreating a Solid Material Comprising an Organic Compound |
| 12/10/2008 | EP1999284A1 Improved processing of metal values from concentrates |
| 12/10/2008 | EP1769094B1 Scavenger supports with amino-functionalised pendant ketoester or ketoamide groups for removing metals from solutions |
| 12/10/2008 | CN101319278A Quick dissolution method for high-purity rhodium material |
| 12/10/2008 | CN100441709C Method of refining noble lead or dore silver |
| 12/09/2008 | CA2552292C Purification of pgm species from mixtures thereof |
| 12/03/2008 | EP1799872A4 Separation apparatus |
| 12/03/2008 | CN101314818A Golden shifting process of biological oxidation-torrefaction-cyanidation |
| 12/02/2008 | US7459006 Extraction of an element of ore ; applying electromagnetic radiation; induce pyrolysis |
| 11/27/2008 | WO2008141443A1 Process for precious metal recovery from a sulphide ore or concentrate or other feed material |
| 11/27/2008 | WO2007108984B1 Production of iron using environmentally-benign renewable or recycled reducing agent |
| 11/27/2008 | CA2683506A1 Process for precious metal recovery from a sulphide ore or concentrate or other feed material |
| 11/26/2008 | CN101311280A Process for recovering non-ferrous metal and noble metal from electronic waste material |
| 11/26/2008 | CN101310899A Method for preparing silver nano-wire in large batch |
| 11/26/2008 | CN100436612C Tech. of recovering old silver platinum noble metals from antimony-smelting waste slag |
| 11/20/2008 | US20080286180 Process for gold and silver recovery from a sulphide concentrate |
| 11/20/2008 | US20080282843 Process for Removal of the Catalytic Coating Material from Spent, Defective or Unused Metal Support Catalytic Converters |
| 11/20/2008 | US20080282842 Heating the catalytic coating bonded to the steel mantle with an aqueous solution of sodium hydroxide; draining; heating; rinsing with acidic solution; cooling; delamination; no leaching of iron; environmentally friendly; cost efficiency; platinum, palladium, rhodium recovery and reuse |
| 11/19/2008 | EP1991712A1 Catalyst reprocessing |
| 11/19/2008 | CN100434548C Method of reclaiming silver from silver containing solution by poly m-phenylenediamine as adsorbent |
| 11/19/2008 | CN100434547C Method of reclaiming silver from silver containing solution by poly o-phenylenediamine as adsorbent |
| 11/19/2008 | CN100434546C Method of reclaiming silver from silver ion containing solution by polydiaminoanthraquinone as adsorbent |
| 11/11/2008 | US7449160 Process of solvent extraction of copper |
| 11/05/2008 | CN201144271Y Smelting unit heating cyanide gold mud with microwave |
| 11/05/2008 | CN101298639A Comprehensive utilization process of malachite ore |
| 10/29/2008 | EP1984532A1 Aqueous solutions containing metal cyanide for cyanide leaching for the winning of gold and silver |
| 10/29/2008 | EP1984531A1 Method for recovering gold |
| 10/29/2008 | CN201141038Y Gold extraction device using carbon slurry method |
| 10/29/2008 | CN201141037Y Microvesicle oxidization gold extraction leaching tank |
| 10/29/2008 | CN101293282A Aluminum powder washing method and washing device |
| 10/23/2008 | WO2008022986A3 Process for the recovery of metals from components |
| 10/22/2008 | CN101292051A Method and apparatus for the recovery of refractory mineral ores |
| 10/16/2008 | WO2008122251A1 A method of preparation of suspensions of micrometer crystals of silver |
| 10/15/2008 | CN101285126A Gold extraction process with low pollution and high recovery for refractory gold concentrate |
| 10/09/2008 | WO2008047010A3 Method for treating waste containing precious metals and device for implementing said method |
| 10/09/2008 | US20080247925 Separation and recovery of precious metals using polymer materials |
| 10/09/2008 | US20080245187 Accelerating Lithium particles to bombard Osmium element, combining by a cold fusion process to produce Gold |
| 10/09/2008 | DE102005008684B4 Verwendung von Flüssigkristall-Displays sowie Verfahren zu deren Verwertung The use of liquid crystal displays and methods for their recovery |
| 10/08/2008 | EP1978117A2 Method for extracting precious metals |
| 10/08/2008 | EP1978115A1 Method for recovering Rhodium |
| 10/08/2008 | CN101280363A Method for recovery of palladium from waste palladium-carbon catalyst |
| 10/08/2008 | CN101280362A Recovery method of platinum catalyst in membrane electrode of waste fuel batter with proton exchange film |
| 10/08/2008 | CN100424204C Precious metal recovery using thiocyanate lixiviant |
| 10/08/2008 | CN100424201C Method for purifying golden and silver by fast wetting optimization |
| 10/07/2008 | CA2278044C Method for recovering gold from refractory carbonaceous ores |
| 10/01/2008 | EP1975259A1 Method for separation and recovery of noble metals |
| 10/01/2008 | EP1727916A4 Recovery of metals from oxidised metalliferous materials |
| 10/01/2008 | CN101278064A Method for processing nickel bearing raw material in chloride-based leaching |
| 10/01/2008 | CN101275184A Method for recovering rhodium |
| 09/30/2008 | US7429286 Heap bioleaching and biooxidation of precious metal bearing refractory sulfide ores; improved air and fluid flow within the heap; crushing and separating the ore, forming a heap and a concentrate, biooxidation, hydrometallurgical recovery of gold, silver, platinum, or copper |
| 09/30/2008 | CA2618929A1 Method for recovering rhodium |
| 09/25/2008 | WO2007108984A3 Production of iron using environmentally-benign renewable or recycled reducing agent |
| 09/24/2008 | CN101273147A Method and device for combusting precious metal-containing materials |
| 09/24/2008 | CN101270415A Method for recycling noble metal from battery slag containing Co, Ni, Mn |
| 09/17/2008 | CN100419101C Recovery of precious metals from waste catalysts |
| 09/10/2008 | EP1966400A1 Method for the recovery of ruthenium from used ruthenium oxide-containing catalysts |
| 09/10/2008 | CN101260469A Method for reclaiming and purifying platinum and rhodium from waste material containing platinum and rhodium |
| 09/10/2008 | CN101260463A Leaching method for alloy material obtained from magnetic copper-nickel concentrate |
| 09/09/2008 | US7422621 Pyrite is removed from leaching residue by pyrolyzing the residue at 550 degrees C. or higher in a non-oxidative atmosphere to produce calcined ore containing pyrrhotite, precious metals and gangue; and re-leaching the calcined ore in an acidic, aqueous solution |
| 09/03/2008 | EP1964936A1 Process for recovering noble metals from electric and electronic wastes |
| 09/03/2008 | CN101255501A Method for reclaiming platinum-silver-iodine form platinum-containing silver iodide slag |
| 09/03/2008 | CN101255499A Method for solid-phase gold extraction from alkaline cyanide solution |
| 09/03/2008 | CN101254988A Cyanogens-containing sewage water treatment method for baking cyanidation gold extraction process |
| 08/27/2008 | CN101250623A Biological heap leaching metal technique for low grade unwieldiness gold ore |
| 08/26/2008 | US7416882 Treatment of soil impurities; coarse particle sizes; biooxidation |
| 08/26/2008 | US7416712 Extracting metals from arsenosulfidic and/or sulfidic cobalt and/or nickel ore or concentrate by conversion to cobalt monosulfide and/or nickel sulfide by sulfur or sulfur-containing arsenic compounds; sulfiding; leaching of soluble metals and rare earth elements |
| 08/21/2008 | WO2008100163A1 Method of manufacturing silver nanoparticles, cellulosic fibers and nanofibers containing silver nanoparticles, fibers and nanofibers containing silver nanoparticles, use of silver nanoparticles to the manufacture of cellulosic fibers and nanofibers, and wound dressing containing silver nanoparticles |
| 08/21/2008 | WO2008099747A1 Method for recovering platinum group metal from waste |
| 08/21/2008 | WO2008099681A1 Triazinethiol-loaded carbide, method for producing triazinethiol-loaded carbide, method for adsorbing metal ion, and method for recovering metal |
| 08/21/2008 | US20080196546 Use of Non-Ionic Surfactants In the Production of Metals |
| 08/20/2008 | CN101245413A Alkaline pickling doctor solution processing method in precious metal smelting process |
| 08/14/2008 | US20080191395 Apparatus for producing nano-particles of silver |
| 08/13/2008 | CN201099695Y Complete equipment for abstracting noble metal from waste and old circuit board, circuit board, gold plating plate |
| 08/13/2008 | CN101240380A Technique for extracting silver from copper anode mud solution after pretreatment |
| 08/13/2008 | CN100410396C Ru and/or chlorination treatment method of Rh |
| 08/13/2008 | CN100410395C Recovery method of rhodium |
| 08/12/2008 | US7410930 Recovering catalyst and carrier by exfoliating overcoat layer on the surface of a catalyst layer |
| 08/12/2008 | CA2381157C Bioleaching of sulphide minerals |
| 08/12/2008 | CA2277048C Method of removing reactive metal from a metal-coated reactor system |
| 08/07/2008 | US20080184849 Extraction a metal; concentration; minaturization of concentration; extraction; recovering of gold |
| 08/06/2008 | EP1951919A2 Method and device for combusting precious metal-containing materials |
| 08/06/2008 | CN100408707C Method for recovering rhodium |
| 08/06/2008 | CN100408706C Method for separating Te from Rh solution |
| 07/30/2008 | CN101230421A Method for extracting gold from waste circuit boards |
| 07/30/2008 | CN101230418A Gold concentration method for vertical-groove vein gold seam gold mining |
| 07/24/2008 | US20080173132 Integrated hydrometallurgical and pyrometallurgical processing of base-metal sulphides |
| 07/23/2008 | CN101225473A Treatment method and system for etching liquid |
| 07/23/2008 | CN101225467A Method for pretreating refractory gold ore by employing microwave calcining |
| 07/23/2008 | CN101224443A Multipurpose use method for pyrites mineral |
| 07/23/2008 | CN100404708C Two-section roasting production process for recovering Au, Cu, Ag, As and S from As and C containing aurin ore |
| 07/23/2008 | CN100404707C Method of extracting gold and silver from arsenic containing aurin ore |
| 07/17/2008 | DE112006002407T5 Brandprobenschmelzmittelzusammensetzung für die Analyse von PGM und Gold aufweisenden Mineralproben Fire assay flux composition for the analysis of PGM and gold containing mineral samples |
| 07/16/2008 | CN101220506A Method for high concentration mass-synthesis of silver nano-wire |
| 07/16/2008 | CN101220413A Technique for smelting ferroferrite with sponge iron |
| 07/10/2008 | WO2008081324A2 Process for reduced alkali consumption in the recovery of silver |