| Patents for C22B 11 - Obtaining noble metals (5,080) |
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| 07/24/2013 | CN103215438A Process for improving arsenic gold concentrate roasting arsenic and sulfur removal rate |
| 07/24/2013 | CN103215435A Method for comprehensively recycling zinc, copper, lead, gold, silver and sulfur from floatation silver concentrate |
| 07/24/2013 | CN101942568B Method for recovering noble metal from waste computer and fittings thereof |
| 07/17/2013 | CN103205580A Desulfurization method in noble metal enriching process |
| 07/17/2013 | CN103205571A Treatment process for high-carbon high-arsenic gold ores |
| 07/17/2013 | CN103205567A Method for enriching gold and platinum group metal in process of melting copper-nickel sulfide ore |
| 07/17/2013 | CN103205563A Method for extracting rare noble metals by wet method |
| 07/17/2013 | CN103205381A Decarbonizing and desulphurizing bacterium agent for difficultly-selected gold ore and application thereof |
| 07/17/2013 | CN102690955B Method for comprehensively recycling valuable metals from lead anode slime by oxygen pressure treatment |
| 07/17/2013 | CN101983248B Method of recovery of metal, espacially silver, from metal chlorides by hydrogen reduction |
| 07/10/2013 | CN103194614A Low-grade copper-bearing gold ore dump leaching-carbon adsorption production method |
| 07/10/2013 | CN103194613A Method for extracting gold from high basic gangue containing arsenic and carbon |
| 07/10/2013 | CN103194612A Advanced treatment technology for bottom blowing smelting smoke dust |
| 07/10/2013 | CN103194610A Method for extracting gold from silver separating residues in nonferrous metal exploitation |
| 07/10/2013 | CN103194608A Method and system for recovering gold from production waste liquor |
| 07/10/2013 | CN103194607A Precious-metal recycling and burning equipment and storage rack thereof |
| 07/10/2013 | CN103194606A Method for concentrating platinum group metals from alumina-based waste catalyst |
| 07/10/2013 | CN103194605A Treatment method for polymetallic alloy formed by arsenic-lead-antimony and noble metal |
| 07/10/2013 | CN103194604A Method for recovering tantalum, silver and manganese in waste and old tantalum capacitor |
| 07/10/2013 | CN103194598A Method for improving recovery rate of gold ore difficult to treat by adopting sulfuric acid leaching reduction process |
| 07/10/2013 | CN103191701A Preparation method of gold absorbent based on waste eggshell membrane biomaterial |
| 07/10/2013 | CN102560138B Pretreatment method of refractory gold ore |
| 07/10/2013 | CN102534226B Method for extracting precious metal from spent automobile catalyst by concentration smelting-wet separation process |
| 07/03/2013 | CN203034064U Separator for gold, lead and zinc in mine |
| 07/03/2013 | CN103184345A Method for removing iron and enriching platinum group metals from smelted iron trapping material |
| 07/03/2013 | CN103184336A High-arsenic high-carbon micro-fine particle refractory gold ore biological gold extraction technology and microorganism used in technology |
| 07/03/2013 | CN102146516B Metal compound removal |
| 07/02/2013 | US8475749 Process for recovery of noble metals from functionalised, noble metal-containing adsorption materials |
| 07/02/2013 | CA2674522C Silver nanoparticle process |
| 06/27/2013 | WO2013090981A1 Smelting process |
| 06/27/2013 | US20130160609 Method for recovering platinum from aviation engine components |
| 06/26/2013 | EP2607506A1 Method for recovering platinum from aviation engine components |
| 06/26/2013 | EP2607505A1 Method for burning off carbonaceous dry metallic ash |
| 06/26/2013 | EP2606158A2 Sustainable process for reclaiming precious metals and base metals from e-waste |
| 06/26/2013 | CN103173621A Method for recovering platinum from aviation engine components |
| 06/26/2013 | CN102181654B Method for recovering zinc, silver and copper from zinc leaching residue |
| 06/22/2013 | CA2798781A1 Method for recovering platinum from aviation engine components |
| 06/19/2013 | CN203007360U Oxygen-rich side blowing melting furnace for complex and refractory gold concentrate |
| 06/19/2013 | CN103160691A Process method of recycling gold and copper from abandoned electronic components |
| 06/19/2013 | CN103157446A Adsorbent for separating palladium from alkali metals and alkaline-earth metals and its preparation method and use |
| 06/19/2013 | CN102492854B Method for raising leaching rate of silver cyanide |
| 06/12/2013 | CN103146928A Method for processing anode mud with high Ag, Bi and Pb by using full wet method |
| 06/12/2013 | CN103146926A Pre-treating method for recycling rhodium in tar |
| 06/12/2013 | CN103146920A Pretreatment method for refractory gold ore containing arsenic and sulfur |
| 06/12/2013 | CN101760610B Method for comprehensively recycling gold concentrator tailings |
| 06/11/2013 | CA2556769C Method of homogenisation and, optionally, analysis for processing moist noble metal-containing recycling materials with an unknown noble metal content |
| 06/06/2013 | WO2013082614A1 Precious metals recovery |
| 06/06/2013 | WO2013079804A1 Method for processing ash, particularly fly ash |
| 06/06/2013 | US20130140186 Process for gold and silver leaching with thiourea solutions |
| 06/06/2013 | CA2857687A1 Precious metals recovery |
| 06/06/2013 | CA2855899A1 Method for processing ash, particularly fly ash |
| 06/05/2013 | CN202968660U Equipment for incinerating waste palladium-carbon catalyst |
| 06/05/2013 | CN103131866A Method for recovering silver and zinc in wet processing of lead and silver slag |
| 06/05/2013 | CN103131859A Comprehensive recycling method for metals in superalloy scrap |
| 06/05/2013 | CN103131857A Method for purifying platinum group metal from waste three-way catalyst |
| 06/05/2013 | CN103131849A Sulfur concentrate sand roasting method favorable for comprehensive resource utilization |
| 06/05/2013 | CN102634666B Method for dearsenicating fresh high-arsenium lead anode slime under oxygen pressure |
| 06/05/2013 | CN102206759B Decyanation method and apparatus of cyanogen-containing tailings |
| 05/29/2013 | CN103122415A Method for improving inclusion gold leaching rate |
| 05/29/2013 | CN103122412A Recovery method for waste palladium carbon catalyst metal palladium |
| 05/29/2013 | CN101760624B Method for extracting gold by using circuit board anode mud |
| 05/22/2013 | CN103114207A Method for purifying pure gold, silver, platinum, palladium and osmium |
| 05/22/2013 | CN103114206A Method and device for recovering valuable elements from lead-silver-bismuth slag in copper smelting |
| 05/22/2013 | CN103114202A Comprehensive recovery process for environment-friendly type refractory gold-silver ore multi-metals |
| 05/22/2013 | CN102560120B Method for extracting gold from electronic waste leaching solution by using garlic wastes |
| 05/16/2013 | US20130118948 Transportable, self-contained assay facility and method of using same to procure and assay precious metals |
| 05/15/2013 | CN102251124B Method for extracting gold from inferior refractory gold ore resources |
| 05/14/2013 | CA2699873C Process for recovering gold and silver from refractory ores |
| 05/08/2013 | CN202924796U Reaction device for extracting precious metal gold by ion exchange method |
| 05/08/2013 | CN103088222A Process for treating refractory gold ores |
| 05/08/2013 | CN103088221A Gold filter element recovery technique |
| 05/08/2013 | CN103088218A Method for extracting silver and lead from smelting slag generated by pyrogenic process treatment of copper anode mud |
| 05/08/2013 | CN102586604B Technology for wet-processing anode mud containing arsenic and lead |
| 05/08/2013 | CN102560127B Method for preparing ultrafine tantalum carbide from tantalum capacitor scraps |
| 05/08/2013 | CN102409171B New process for treating vulcanized gold-containing ore |
| 05/01/2013 | CN202913041U Dore converting furnace for extracting silver from anode slime |
| 05/01/2013 | CN103074501A Gold net recovery process |
| 05/01/2013 | CN103074500A Method for producing high-purity silver powder by using silver-containing dead catalyst |
| 05/01/2013 | CN103074492A Method for separating and purifying gold from noble metal solution |
| 05/01/2013 | CN103074489A Processing method of refractory gold ore |
| 05/01/2013 | CN102676805B Low grade zinc concentrate associated lead and silver recovery process |
| 05/01/2013 | CN102534237B Environment-friendly treatment method for aluminum slag from tin smelting |
| 05/01/2013 | CN102417981B Method for extracting and separating platinum, palladium and rhodium by using ionic liquid-based three-liquid phase system |
| 05/01/2013 | CN102399993B Method for treating waste residue from wet method gold smelting |
| 04/24/2013 | CN202898496U Cupellation furnace |
| 04/24/2013 | CN103060577A Environmentally-friendly gold beneficiation agent and production method thereof |
| 04/24/2013 | CN103060568A Method for recovering gold from gold-containing waste charcoal powder |
| 04/24/2013 | CN102021344B Processing unit of precious metal contained waste liquid recovery |
| 04/23/2013 | CA2783646C Process for recovery of precious metals |
| 04/17/2013 | EP2580162A1 Method for recovering gold by solvent extraction |
| 04/17/2013 | CN103045874A Melting method of pure silver art castings |
| 04/17/2013 | CN103045872A New technology for recovering silicon-supported palladium |
| 04/17/2013 | CN103045871A Method for preparing high-grade aluminium powder through waste liquid silver immersion |
| 04/17/2013 | CN103045852A Method for extracting manganese and silver from manganese ores |
| 04/17/2013 | CN103045849A Pretreatment method for platinum palladium concentrate |
| 04/17/2013 | CN102430482B Method for comprehensively recycling copper, gold and silver from liquid obtained after copper separation of tailings subjected to cyaniding for gold extraction |
| 04/17/2013 | CN102409176B Comprehensive treatment process of waste gold-bearing activated carbon |
| 04/17/2013 | CN102251116B Method and equipment for leaching platinum-containing waste catalyst through mechanical activation |
| 04/17/2013 | CN102108444B Method for recycling ruthenium in supported type ruthenium catalyst |
| 04/11/2013 | WO2013051965A1 Method for separating metals from solutions |