| Patents for C22B 11 - Obtaining noble metals (5,080) |
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| 05/20/2009 | EP1725345B1 Use of liquid crystal displays and method for the use thereof |
| 05/19/2009 | US7534285 Extraction a metal; concentration; minaturization of concentration; extraction; recovering of gold |
| 05/14/2009 | US20090123350 Recovery of precious metals and their compounds from natural quartz ore using sodium silicate manufacturing techniques |
| 05/14/2009 | CA2621589A1 Methods for eliminating cyanide from mining waste liquids |
| 05/13/2009 | CN101432452A Mineral extraction system and process |
| 05/13/2009 | CN100487142C Method of extracting valuable element from waste water and waste slag |
| 05/12/2009 | CA2292745C Separating metal ions absorbed on a resin and installation for recycling photographic effluents including an exchanger and an electrolysis vessel |
| 05/09/2009 | CA2643450A1 Precious metal recovery by optimum induction smelting |
| 05/07/2009 | US20090114600 producing a precipitate by reacting with the heteropoly acid or heteropoly acid anion; purification; removal of a metal complexes catalyst |
| 05/06/2009 | EP2055793A1 Methodology for recycling RU and RU-alloy deposition targets & targets made of recycled RU and RU-based alloy powders |
| 05/06/2009 | CN101423896A Methodology for recycling ru and ru-alloy deposition targets & targets made of recycled ru and ru-based alloy powders |
| 05/06/2009 | CN100485060C Method for recovering gold from a gold-containing solution |
| 05/06/2009 | CN100485059C Method for recovering gold from sulphide concentrate |
| 05/06/2009 | CN100485058C Process of recovering noble metal from hydroxylating metallurgy slag |
| 05/06/2009 | CN100485055C Method for leaching gold mine by electrochemistry oxidation method |
| 05/05/2009 | CA2207518C Method of leaching metal from a heap of comminuted ore |
| 04/29/2009 | EP2052092A1 A method for recovering noble metals |
| 04/29/2009 | EP1978117A4 Method for extracting precious metals |
| 04/29/2009 | CN101421426A Process for extracting gold from gold-bearing ore |
| 04/29/2009 | CN101418376A Method and equipment for beneficiation and metallurgy of refractory gold ore by supercritical water oxidation |
| 04/29/2009 | CN101418375A Liquid membrane extraction of gold-diaphragm electrolysis extraction of gold process |
| 04/29/2009 | CN100482815C Sulfur slag vacuum volatilizing process for enriching noble metal |
| 04/22/2009 | EP1831411B9 Extraction process for metals like gold and platinum incl. fine grinding , pulping and oxygenating |
| 04/22/2009 | CN100480401C Methoxy-pheyl-sulfamic acid modified aniline copolymer used as silver ion absorbent |
| 04/14/2009 | US7517384 During metal recovery from an ore, a seeding agent is introduced to provide a nucleation site for the crystallization and/or growth of solid species which otherwise tend to passivate the reactive process or encapsulate the metal value |
| 04/08/2009 | CN101403042A Recovery processing method for cyanogen golden mine tailing |
| 04/08/2009 | CN101403041A Method for removing arsenic sulphur elements in golden ore concentrate hard to treat |
| 04/08/2009 | CN100475985C Recovering process of valuable metal from crude bismuth |
| 04/07/2009 | US7513931 Process for recovering platinum group metals, rhenium and gold |
| 04/01/2009 | CN101397608A Method for enriching and recovering metal platinum and rhodium from waste refractory materials |
| 04/01/2009 | CN100473732C Device for leaching gold mine by electrochemistry oxidation method |
| 04/01/2009 | CA2599490A1 Producing precious metals, particularly the platinum group metals |
| 03/26/2009 | WO2009037596A2 Method to improve recovery of gold from double refractory gold ores |
| 03/26/2009 | WO2009037594A2 Process for recovering gold and silver from refractory ores |
| 03/26/2009 | WO2009018592A3 Enrichment process for a pgm-metals containing stream |
| 03/26/2009 | CA2699873A1 Process for recovering gold and silver from refractory ores |
| 03/26/2009 | CA2699415A1 Process for mercury control during pressure oxidation |
| 03/25/2009 | CN101395288A Catalyst reprocessing |
| 03/25/2009 | CN101392326A Method for recovering gold from all-sliming cyanidation gold extraction slag |
| 03/25/2009 | CN101392325A Method for extracting gold from waste printed circuit board |
| 03/19/2009 | WO2009034482A2 Process for recovering platinum group metals using reductants |
| 03/19/2009 | WO2009007911A3 Melt separation apparatus and method for assaying mineral ore samples using the same |
| 03/19/2009 | US20090071296 Process for controlling acid in sulfide pressure oxidation processes |
| 03/19/2009 | US20090071295 Method to improve recovery of gold from double refractory gold ores |
| 03/19/2009 | US20090071289 Process for recovering platinum group metals using reductants |
| 03/19/2009 | CA2699517A1 Process for recovering platinum group metals using reductants |
| 03/18/2009 | CN101386916A Emulsion liquid membrane for gold extraction |
| 03/11/2009 | CN101384737A Method for recovering gold |
| 03/11/2009 | CN100467633C Process for recovering silver from waste fixer solution |
| 03/11/2009 | CN100467631C Method for recovering gold and copper from gold-plated printed circuit board waste material |
| 03/05/2009 | WO2009029463A1 Simplified process for leaching precious metals from fuel cell membrane electrode assemblies |
| 03/05/2009 | US20090061327 Removal of ionic residues or oxides and prevention of photo-induced defects, ionic crystal or oxide growth on photolithographic surfaces |
| 03/05/2009 | CA2697367A1 Simplified process for leaching precious metals from fuel cell membrane electrode assemblies |
| 03/04/2009 | CN101379204A Aqueous solutions containing metal cyanide for cyanide leaching for the winning of gold and silver |
| 03/04/2009 | CN101376924A Method for recycling gold from refractory gold concentrate |
| 03/04/2009 | CN101376923A Method for recycling noble metal from spent catalyst |
| 03/03/2009 | US7498006 Smelting arsenic gold ore concentrate and iron powder; heating to remove the volatilized arsenic sulfides; crystallization, producing arsenic; shutdown,cooling, charge the air, take out the gold-rich slag after dearsenization, and extract fine gold |
| 02/26/2009 | US20090049954 Cryogenically embrittled and pulverized to form powder |
| 02/25/2009 | CN201198490Y Nobel metal recycling apparatus of nitric acid device |
| 02/25/2009 | CN100463983C Method for reclaiming metal by copper smelting-furnace magnesia brick lining |
| 02/24/2009 | US7494527 Process for plasma synthesis of rhenium nano and micro powders, and for coatings and near net shape deposits thereof and apparatus therefor |
| 02/22/2009 | CA2595275A1 The sequential lixivation and precipitation of metals from refractory ores by utilising variable oxidation reduction potentials and a variable ph system |
| 02/19/2009 | WO2009023813A1 Metals recovery from mining heap leach ore |
| 02/18/2009 | CN101370949A Method for extracting precious metals |
| 02/18/2009 | CN100462450C Process for dry type ore grinding employing vertical roller mill |
| 02/17/2009 | US7491319 Inspecting apparatus with eddy current inspection |
| 02/12/2009 | US20090038441 dewaxing the Fischer-Tropsch catalyst containing coblat on alumina support using a pressurised near-critical or supercritical fluid selected from alkane, alcohol (isopropanol) or water, leaching alumina with NaOH to form sodium aluminate and cobalt with HNO3 to form cobalt nitrate for reuse |
| 02/12/2009 | US20090038440 Method for the Recovery of Gold from Sulphide Concentrate |
| 02/11/2009 | EP2021520A1 Process for producing stabilised metal nanoparticles |
| 02/11/2009 | CN101363081A Nontoxic process for extraction gold from gold-bearing tailing |
| 02/11/2009 | CN101362207A Method for recovering rhodium from the organic waste liquor |
| 02/10/2009 | US7488370 Reducing cyanide consumption in gold recovery from finely ground sulphide ores and concentrates |
| 02/05/2009 | WO2009018592A2 Enrichment process for a pgm-metals containing stream |
| 02/05/2009 | WO2009017434A1 Method for recovering non-ferrous, rare, radioactive and precious metals from refractory mineral raw materials |
| 02/05/2009 | WO2009017136A1 Method of recovering catalyst metals |
| 02/05/2009 | US20090035833 Separating clays and fines from crushed refractory sulfide ore and forming a heap from the ore; concentrating of refractory sulfide minerals from the separated fines and add to the heap; bioleaching the heap to thereby oxidize iron sulfides; hydrometallurgically recover values; gold |
| 02/05/2009 | US20090031862 Recovery process for precious metals |
| 02/05/2009 | CA2694733A1 Enrichment process for a pgm-metals containing stream |
| 02/04/2009 | CN101358287A Separation method of gold, silver and platinum metals from refractory alloy gold |
| 02/04/2009 | CN100457929C Integral gold refining kiln oxidizing baking process for refractory gold ore and baking tunnel kiln |
| 01/28/2009 | CN101353727A Method for reclaiming silver and copper in silver-copper alloy scrap |
| 01/28/2009 | CN101353726A Method for separating lead platinum alloy by vacuum distillation |
| 01/27/2009 | US7481938 Metal compound removal |
| 01/27/2009 | CA2417422C Method for processing sulfur-bearing materials using high temperature pressure leaching for metal recovery |
| 01/22/2009 | US20090019970 Process for recovery of metal values from materials containing arsenic and/or antimony |
| 01/21/2009 | CN100453154C Metal bearing membranes |
| 01/20/2009 | US7479262 Method for separating platinum group element |
| 01/15/2009 | WO2009007911A2 Melt separation apparatus and method for assaying mineral ore samples using the same |
| 01/15/2009 | US20090013829 Process for the recovery of value metals from base metal sulfide ores |
| 01/15/2009 | US20090013826 Alkali Metal Dispenser and Uses for Same |
| 01/14/2009 | CN101343691A Pollution-free separation method for plumbum and silver |
| 01/07/2009 | CN101338439A Electrochemical separation and recovery method for gold and silver in copper matte |
| 01/07/2009 | CN101338370A Gold-extracting process by thiourea carbon-in-pulp method |
| 01/07/2009 | CN101338368A Method for preprocessing anode sludge and recovering dissipated metal |
| 01/06/2009 | US7473406 Process for recovery of palladium from spent catalyst |
| 01/01/2009 | US20090004728 Method of biotreatment for solid materials in a nonstirred surface bioreactor |
| 12/31/2008 | WO2009001897A1 Reagent for separation of platinum-group metal, and method for separation/collection of platinum-group metal using the same |
| 12/31/2008 | EP2007513A1 Preparation of stable silver colloids |
| 12/31/2008 | EP1577408B1 Method for separating platinum group elements from selenum/tellurium bearing materials |
| 12/31/2008 | CN101333602A Beneficiating process for increasing recovery rate of aurum in tailings of aurum |