| Patents for C22B 11 - Obtaining noble metals (5,080) |
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| 11/03/2010 | CN1940100B Neutralization method of rh hydrochloric acid solution |
| 11/03/2010 | CN101876005A Method for extracting aurum from difficult-to-handle sulphide ore aurum concentrate by two-segment pressurization leaching method |
| 10/28/2010 | WO2010121329A1 Enhanced recovery of gold |
| 10/28/2010 | WO2010121318A1 Method for processing precious metal source materials |
| 10/28/2010 | WO2010121317A1 Extraction of gold from cathode associated gold concentrates |
| 10/28/2010 | CA2760354A1 Method for processing precious metal source materials |
| 10/28/2010 | CA2760345A1 Extraction of gold from cathode associated gold concentrates |
| 10/28/2010 | CA2759804A1 Enhanced recovery of gold |
| 10/27/2010 | CN101871049A Novel technique for extracting gold and silver from ores |
| 10/20/2010 | EP2240614A1 Process for the recovery of precious metals from used and/or defective catalytic carriers |
| 10/20/2010 | CN201610442U 一种气力浸出槽 One kind of pneumatic leaching tank |
| 10/19/2010 | US7815706 from spent petrochemical type catalyst, spent vehicle exhaust gas purification catalyst, and spent electronic circuit boards or lead frames; melting with flux components and reducing agent and copper oxide; sinking molten metal of primarily metallic copper below a molten slag layer of primarily oxides |
| 10/14/2010 | WO2010116167A1 Ionic liquid solvents of perhalide type for metals and metal compounds |
| 10/14/2010 | US20100257978 Process for recovering platinum group metals from ores and concentrates |
| 10/13/2010 | CN101857922A Oxygen-enriched smelting device with double smelting pools |
| 10/13/2010 | CN101857921A Device for recovering noble metals |
| 10/13/2010 | CN101857920A Device for recovering noble metals |
| 10/13/2010 | CN101519725B Method for extracting precious metal from auto-exhaust catalyst by hydrometallurgy and pyrometallurgy complex process |
| 10/06/2010 | EP2236633A1 Method for generating ruthenium from materials or noble metal ore concentrates containing ruthenium or ruthenium oxide |
| 10/06/2010 | EP2235223A2 Reduction of metal chloride |
| 10/06/2010 | CN101855373A Method of recovering noble metals and recovering system for noble metals |
| 10/06/2010 | CN101851703A Device for recovering noble metals |
| 10/06/2010 | CN101850354A Process for utilizing all components in waste circuit boards |
| 10/06/2010 | CN101049933B Method for preparing metallic and nonmetallic Nano granules through hydrolysis method for compound containing magnesium |
| 10/05/2010 | CA2508237C A process for the recovery of adsorbed palladium from spent silica |
| 09/30/2010 | WO2010109191A1 Platinum group metal recovery from powdery waste |
| 09/30/2010 | US20100242681 Method for concentration of gold in copper sulfide minerals |
| 09/30/2010 | CA2756179A1 Platinum group metal recovery from powdery waste |
| 09/29/2010 | CN101844842A Waste silver treatment device for silver mirror production line |
| 09/29/2010 | CN101550486B Method for separating and recovering gold or silver by inner-coupling liquid membrane |
| 09/29/2010 | CN101475205B Method for preparing silver chloride sol and silver sol from AgCl powder |
| 09/23/2010 | WO2010107585A1 Improving the recovery of precious metals from recalcitrant refractory ore |
| 09/23/2010 | WO2010105299A1 Electrorecovery of metals |
| 09/23/2010 | CA2754117A1 Improving the recovery of precious metals from recalcitrant refractory ore |
| 09/22/2010 | EP2230321A1 Process for the preparation of supported metal nanoparticles |
| 09/22/2010 | CN101570830B Extraction method of high-purity gold |
| 09/21/2010 | US7799294 Clarifying a first aqueous leach pulp by solid-liquid separation and solvent extraction to obtain a raffinate and a second aqueous leach pulp; diluted separation and extraction of the second pulp; pollution control |
| 09/21/2010 | US7799114 Method for recovering gold |
| 09/15/2010 | CN201581120U Silver smelting furnace |
| 09/15/2010 | CN101831669A High-temperature cyanogen-free gold loaded carbon desorption system and control method thereof |
| 09/15/2010 | CN101831558A Osmotic treatment and stacking method of oxidized clay type gold ores |
| 09/15/2010 | CN101831557A Method for preparing anti-natural ageing and softening high-purity silver material |
| 09/15/2010 | CN101831553A Method for green recovery of waste circuit boards by cyanide-free full-wet whole set process |
| 09/15/2010 | CN101831551A Method for recovering gold, silver, bismuth, stibium and copper from lead anode mud |
| 09/15/2010 | CN101525697B Method for separating enriched palladium by adopting supermolecule secondary spherical coordination identification |
| 09/15/2010 | CN101278064B Method for processing nickel bearing raw material in chloride-based leaching |
| 09/14/2010 | US7794677 Reduction of copper content in the molybdenite concentrate |
| 09/09/2010 | US20100226838 Process for the removal of catalyst degradation products |
| 09/09/2010 | US20100226837 Production of metal products directly from underground ore deposits |
| 09/09/2010 | US20100224837 Feature forming process using acid-containing composition |
| 09/09/2010 | US20100224029 Method for separation and recovery of noble metals |
| 09/08/2010 | EP2226401A1 Method for extracting precious metals from refractory ores and concentrates |
| 09/08/2010 | CN201574188U Air-filling type biological oxidation tank |
| 09/08/2010 | CN101824546A Method for recovering silver from lead-separating liquid of silver-separating residue of copper anode slime |
| 09/08/2010 | CN101824545A Method for extracting gold from thiosulfate adopting ethanediamine as additive |
| 09/02/2010 | US20100221637 Film electrode assembly |
| 09/01/2010 | EP2222883A1 Synthesis of au, pd, pt or ag nano- or microcrystals via reduction of metal salts by cellulose in the ionic liquid 1-butyl-3-methyl imidazolium chloride |
| 09/01/2010 | CN201567360U Efficient and automatic solid phase gold extraction device |
| 09/01/2010 | CN101818258A Method for quickly leaching gold and silver by using mixed leaching agent |
| 09/01/2010 | CN101818247A Selective heap leaching gold extraction process for gold mine containing copper |
| 09/01/2010 | CN101570832B Process for recovering valuable metals in bismuth-containing material by selective chloride volatilizing method |
| 09/01/2010 | CN101451192B Comprehensive recovery method for directly cyanating and intensified leaching multi-metal gold ore concentrate |
| 09/01/2010 | CN101451187B Comprehensive recovery method of gold ore resource containing molybdenum multi-metal |
| 08/31/2010 | US7785395 particularly arsenopyrite and/or pyrite; hydrometallurgy; leaching; separating Elemental sulfur and precipitated iron and arsenic compds; free gold that remains undissolved is separated by gravity separation; sulfide minerals are decomposed, gold-containing solution is routed to concentrate leach circuit |
| 08/26/2010 | US20100215556 Nanopore reactive adsorbents for the high-efficiency removal of waste species |
| 08/25/2010 | CN101812598A Method for simultaneously smelting zinc dipping slag and zinc kiln slag by using blast furnace |
| 08/25/2010 | CN101812597A Secondary refining process for silver |
| 08/25/2010 | CN101812596A Comprehensive recycling method of waste plasma display screen |
| 08/25/2010 | CN101812594A Method for simultaneously smelting hydrolysis slag, pyrite and zinc kiln slag by using blast furnace |
| 08/25/2010 | CN101812591A Method for recovering gold, copper, copper sulfate and copper chloride waste liquid of waste circuit board |
| 08/25/2010 | CN101509077B Method for extracting platinum, palladium, rhodium from automotive catalyst of ore phase reconstruction |
| 08/19/2010 | US20100206135 Recycling of solids in oxidative pressure leaching of metals using halide ions |
| 08/17/2010 | US7776135 recovery of gold in connection with the hydrometallurgical production of copper from a residue or intermediate product containing sulphur and iron generated in the leaching of copper raw material. The recovery of both copper and gold takes place in solution |
| 08/12/2010 | US20100202944 Method for preparing samples for quantitatively and qualitatively determining the precious metal content in products of processing of potassium and magnesium ores |
| 08/12/2010 | US20100199808 Method for recovering metal values from refractory sulfide ore |
| 08/11/2010 | EP2214848A2 Removal of cyanide from aqueous streams |
| 08/11/2010 | CN201543331U Smelting purification diluted-acid recycling system |
| 08/11/2010 | CN101798631A Method for extracting gold from gold-concentration flotation tailings |
| 08/11/2010 | CN101392325B Method for extracting gold from waste printed circuit board |
| 08/05/2010 | WO2010087464A1 Vertical microwave smelting furnace |
| 08/04/2010 | CN101795975A Method for the recycling and purification of an inorganic metallic precursor |
| 08/04/2010 | CN101793637A Test method of alloy gold containing gold and silver and platinum group metal |
| 08/04/2010 | CN101792853A Bacterial oxidation pretreatment and cyanidation gold extraction method of arsenopyrite and realgar type refractory gold ores |
| 07/29/2010 | WO2010084364A1 Method for recovering precious metals from waste catalyst |
| 07/28/2010 | CN101787442A Cyanide leaching method for gold ores |
| 07/28/2010 | CN101787441A Novel method for quickly purifying gold |
| 07/28/2010 | CN101787440A Method for wet processing of high antimony-lead anode mud |
| 07/28/2010 | CN101787436A Wet-method preprocessing method for extracting gold through sulfating roasting slag of ore concentrate containing stibium and gold |
| 07/28/2010 | CN101570825B Process for selectively preparing bismuth-based nanometer materials from crude bismuth by reduced-pressure evaporation method |
| 07/28/2010 | CN101376924B Method for recycling gold from refractory gold concentrate |
| 07/27/2010 | US7763096 Recovery of rhenium |
| 07/22/2010 | US20100180730 Method of separating rhodium from platinum and/or palladium |
| 07/21/2010 | CN201530849U Precious-metals recoverer of nitric acid device |
| 07/21/2010 | CN101781715A Physical method for enriching rare/noble metals in noble-metal die-supporting substances |
| 07/21/2010 | CN101781714A Process for gathering heavy rare noble metal by hushing method |
| 07/21/2010 | CN101195865B Method for extracting silver from silver slag |
| 07/15/2010 | WO2010080050A1 Method for the sorptive extraction of precious metals |
| 07/15/2010 | CA2738692A1 Method for sorptive extraction of precious metals |
| 07/14/2010 | CN101775501A Method for separating and refining precious metal in K gold |
| 07/14/2010 | CN101775490A Gold extracting method by thiosulfate using polyamine compoud as additive |