| Patents for C22B 11 - Obtaining noble metals (5,080) |
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| 10/30/2013 | CN103374661A Method for extracting rare and noble metals from waste LED (light-emitting diode) lamps |
| 10/30/2013 | CN103374659A Method for extracting and recovering precious metal and rare metal from wastes |
| 10/30/2013 | CN102690946B Method for comprehensively extracting valuable metals from tellurium-containing polymetallic materials |
| 10/24/2013 | US20130276585 Method for concentrating and recovering precious metals from spent mobile phone pcbs and spent auto-catalysts using waste nonferrous slag |
| 10/23/2013 | EP2652161A1 Process and plant for treating ore concentrate particles containing valuable metal |
| 10/23/2013 | CN103361485A Technology for comprehensively recycling rare noble metals in waste LED (light-emitting diode) |
| 10/23/2013 | CN102851488B High temperature flue gas anti-glass arsenic waste heat recovery system of roasting dearsenification and method thereof |
| 10/23/2013 | CN102553706B Process for recycling gold from high-arsenic and high-sulfur difficultly treated gold ore |
| 10/17/2013 | WO2013152424A1 Chloride process for the leaching of gold |
| 10/16/2013 | EP2649211A1 Co-current and counter current resin-in-leach in gold leaching processes |
| 10/16/2013 | CN103352125A Method for high-efficiently enriching gold and platinum metal from complex low-grade chlorine soaked slag |
| 10/15/2013 | US8557020 Compound, metal extractant, and application of the same |
| 10/15/2013 | CA2716442C Method for thiosulfate leaching of precious metal-containing materials |
| 10/09/2013 | CN103343239A Method for separating and purifying rhodium |
| 10/09/2013 | CN103343231A Method for recovering useful metal from waste computer |
| 10/09/2013 | CN103343224A Method for quickly extracting gold from gold-containing material |
| 10/09/2013 | CN102560128B Method for recovering ruthenium from waste aluminum oxide loaded ruthenium catalyst |
| 10/08/2013 | US8551212 System and process for recovering base and precious metals |
| 10/03/2013 | WO2013145849A1 Method for eluting silver and metal adsorbed by activated carbon, and method for recovering metal and silver employing same |
| 10/02/2013 | EP2643491A2 Alkaline and acid pressure oxidation of precious metal-containing materials |
| 10/02/2013 | CN103334013A Novel leaching process of extracting precious metals such as gold, silver and the like from silver separating residues |
| 10/02/2013 | CN103334010A Method for fusing enriched precious metal from spent automotive catalyst |
| 10/02/2013 | CN103334007A Method for recycling copper extraction raffinate produced in roasting, acid leaching and extracting processes |
| 09/25/2013 | CN103328662A Method for recovering PGM |
| 09/25/2013 | CN103320624A Method for selectively extracting gold and silver from copper anode slime |
| 09/25/2013 | CN103320620A Method for efficiently enriching gold and platinum group metals from complex low-grade rhodium iridium residues |
| 09/25/2013 | CN103320617A Technology for cleanly and harmlessly processing high-calcium waste residue and high-iron waste residue |
| 09/25/2013 | CN103320610A Sorting technique for valuable elements associated with gold |
| 09/25/2013 | CN102614837B Method for adsorbing and recovering precious metal gold by persimmon tannin-containing metal adsorbent |
| 09/25/2013 | CN102614836B Method for adsorbing and recovering precious metal palladium by persimmon tannin-containing metal adsorbent |
| 09/25/2013 | CN102247807B Preparation method and usage of modified attapulgite adsorption material |
| 09/24/2013 | CA2636122C Process of leaching gold |
| 09/18/2013 | CN203200327U Activated-carbon adsorption device |
| 09/18/2013 | CN203200325U Filter tank |
| 09/18/2013 | CN203200323U Activated carbon adding device |
| 09/18/2013 | CN103305701A Comprehensive recovery method of sulfuric-acid residue containing gold and silver |
| 09/18/2013 | CN103305700A Method for recovering silver from silver-containing wastewater |
| 09/18/2013 | CN103305699A Method for extracting platinum-palladium out of copper anode mud |
| 09/18/2013 | CN103305698A Method for recovering gold, silver, tin and copper from industrial wastes |
| 09/18/2013 | CN103305696A Method for treating alkaline gold-extraction tailings by utilizing acid making tail gas |
| 09/18/2013 | CN103302298A Method for separating and purifying iridium |
| 09/18/2013 | CN102732728B Separation method of noble metals in scrapped auto-exhaust catalyst |
| 09/18/2013 | CN102660689B Method for comprehensively recycling leaching slag in production of electrolytic manganese metal and manganese dioxide |
| 09/18/2013 | CN102121067B Nuisanceless oredressing additive as well as preparation method and application thereof |
| 09/18/2013 | CN101939397B Rare metal extracting agent |
| 09/12/2013 | WO2013131453A1 Method for recovering ruthenium from waste catalyst of aluminum oxide loaded with ruthenium |
| 09/12/2013 | US20130235967 Method for recycling nuclear control rods and recycled control rod section |
| 09/11/2013 | EP2636760A1 Capsule for non-ferrous metal collection and method for collecting non-ferrous metal |
| 09/11/2013 | CN103298958A Capsule for non-ferrous metal collection and method for collecting non-ferrous metal |
| 09/11/2013 | CN103290232A Method for extracting gold from auriferous ores through potassium ferricyanide |
| 09/11/2013 | CN103290231A Method for improving gold leaching rate by deironing with acid leaching from arsenic material |
| 09/11/2013 | CN102002600B Environmentally-friendly chlorine water gold-extracting process |
| 09/10/2013 | CA2641150C A process for reprocessing of a fischer-tropsch catalyst |
| 09/04/2013 | CN203170093U Ceramic filtration washing machine |
| 09/04/2013 | CN103282116A Method for collecting precious metals from solution containing precious metal ions, extractant or adsorbent used therefor, and back extractant or desorbent |
| 09/04/2013 | CN103276220A Process for replacing precious metals through cyaniding |
| 09/04/2013 | CN103276217A Comprehensive recycling process for polymetallic material containing gold and silver |
| 09/04/2013 | CN103276216A Method for recovering silver from waste silver catalyst |
| 09/04/2013 | CN103276215A Method for recovering noble metal from waste catalyst |
| 09/04/2013 | CN103276206A Method for leaching gold in alkaline thiourea system efficiently and stably |
| 09/04/2013 | CN102874956B Novel treatment process for mercurous industrial waste water |
| 08/28/2013 | CN203159688U Refractory gold ore processing device |
| 08/28/2013 | CN103266227A Method for extracting silver in iron ore sintering smoke dust |
| 08/28/2013 | CN102560137B Refining process of alloyed gold |
| 08/28/2013 | CN102534211B Method for selectively adsorbing and extracting gold by using mangosteen slag |
| 08/28/2013 | CN102465205B Method for recycling gold from surface coating of scanning electron microscope sample |
| 08/28/2013 | CN102409183B Gold extraction method by pre-oxidation and cyanide leaching of refractory gold concentrate |
| 08/21/2013 | CN103261454A Process and plant for treating ore concentrate particles containing valuable metal |
| 08/21/2013 | CN103255296A Energy-saving and environment-friendly new technology for production of zinc oxide in rotary kiln and comprehensive recovery of iron copper gold silver indium |
| 08/21/2013 | CN103255286A Method for restraining primary copper sulfide from dissolving in gold concentrate cyaniding process |
| 08/21/2013 | CN103255285A Lead-zinc-silver mixed concentrate comprehensive recovering method |
| 08/21/2013 | CN102849823B Method for separating palladium from waste water by double-arm bonding-type alicyclic crownether silicon resin |
| 08/21/2013 | CN102586618B Process of smelting iron pyrite |
| 08/21/2013 | CN102586607B Method for extracting platinum, rhodium and palladium from failed platinum alloy gauze |
| 08/14/2013 | CN103249849A Sustainable process for reclaiming precious metals and base metals from e-aste |
| 08/14/2013 | CN103243349A Comprehensive zinc hydrometallurgy recovery system technique |
| 08/14/2013 | CN103243222A Modified lime sulphur and application thereof in gold leaching technology |
| 08/14/2013 | CN103243221A Method for directly gathering gold by virtue of smelting of unmanageable gold ore molten pool containing arsenic and stibium |
| 08/14/2013 | CN102532589B Comprehensive recycling method of waste and old compact discs |
| 08/14/2013 | CN102373335B Method for recovering rhodium from inactivated rhodium-phosphine complex catalyst |
| 08/14/2013 | CN102226240B Heap leaching process for arsenium/stibium-containing refractory fine-grain gold oxide ore and leach liquor thereof |
| 08/13/2013 | US8506919 Fine powder of single crystalline diamond particles and a method for the production thereof |
| 08/13/2013 | CA2660226C Method of recovering silver using anion-exchange resin |
| 08/07/2013 | CN203112904U Sodium cyanide dosing device |
| 08/07/2013 | CN103233132A Method for removing impurities from gold powder |
| 08/07/2013 | CN103233127A Method for separating base metal from precious metal in copper anode mud |
| 08/07/2013 | CN102634661B Application of additive in enhancing oxidization of arsenical gold mineral by bacteria |
| 08/06/2013 | CA2618929C Method for recovering rhodium |
| 07/31/2013 | CN103225020A Device for separating precious metals from pregnant solution based on free flow electrophoresis technology and use thereof |
| 07/31/2013 | CN102660684B Method for purifying silver by using wastewater of silver plating production line of rhinestone and method for preparing high-purity silver nitrate |
| 07/31/2013 | CN102586599B Method for recovering valued metals from zinc anode sludge |
| 07/30/2013 | CA2654818C Process for reduced alkali consumption in the recovery of silver |
| 07/30/2013 | CA2639165C Method for recovering metal from ore |
| 07/30/2013 | CA2592095C Use of nonionic surfactants in metal extraction |
| 07/25/2013 | WO2013108478A1 Gold recovery method, and gold production method using same |
| 07/25/2013 | CA2861419A1 Method of recovering gold and method of manufacturing gold using the same |
| 07/24/2013 | CN203075956U Cyanogens-containing tailing pulp ozonation reactor without mechanical stirring |
| 07/24/2013 | CN103215456A Method for improving silver recovery rate of silver concentrate by improving separation concentration |
| 07/24/2013 | CN103215454A Rhodium reduction activation dissolution method |
| 07/24/2013 | CN103215453A Method for treating waste residue by using arsenious wastewater in clean mode |