| Patents for C22B 11 - Obtaining noble metals (5,080) |
|---|
| 02/10/2005 | US20050031512 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 |
| 02/09/2005 | EP1504129A1 Separation of platinum group metals |
| 02/08/2005 | CA2138618C Method of recovering precious metals |
| 02/03/2005 | US20050022629 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 |
| 02/02/2005 | EP1501952A2 Process for extracting platinum group metals |
| 01/27/2005 | WO2005007903A1 A process for recovering platinum group metals from ores and concentrates |
| 01/27/2005 | US20050016324 Electomagnetic pyrolysis metallurgy |
| 01/26/2005 | CN1186466C Method for extracting gold and silver from indissoluble gold and silver concentrate |
| 01/22/2005 | CA2435779A1 A process for recovering platinum group metals from ores and concentrates |
| 01/19/2005 | EP1497473A1 Method for the recovery of gold |
| 01/13/2005 | WO2004083467A3 Recovery of metal values from cermet |
| 01/13/2005 | US20050009170 Preparation of metal nanoparticles in plants |
| 01/13/2005 | US20050005737 Method for recovering metal values from concentrates of sulfide minerals |
| 01/11/2005 | US6841121 Process for producing oxide-dispersion strengthened platinum material |
| 12/29/2004 | EP1337675B1 Chromatographic method of separating ruthenium from platinum group metals |
| 12/29/2004 | EP1332234B1 Precious metal scavenging from a liquid medium with a functionalised polymer fiber |
| 12/23/2004 | US20040258590 Method for extracting copper from leach solutions at elevated temperatures |
| 12/21/2004 | US6833020 Recovery of copper from copper bearing sulphide minerals by bioleaching with controlled oxygen feed |
| 12/16/2004 | US20040253175 Electrostatically enhanced tribochemical methods and apparatus |
| 12/15/2004 | CN1554785A Chemical bulk stack dipping process for gold-containing tailing ore without pelletizing |
| 12/14/2004 | US6830605 Recovery of metal values from cermet |
| 12/09/2004 | WO2004106563A1 Process for recovery of palladium from spent catalyst |
| 12/09/2004 | WO2004106562A1 Anoxic leaching of precious metals with thiosulfate and precious metal oxidants |
| 12/08/2004 | CN1179058C Recovery of precious metals from coal burning slag by multiple crushing/suspension stages |
| 12/07/2004 | US6827837 Method for recovering trace elements from coal |
| 12/02/2004 | WO2004104238A2 Method for extracting copper from leach solutions at elevated temperatures |
| 12/02/2004 | US20040241066 Digestion of cooling catalyst with mineral acids; filtering to separate carbon particles; salt formation |
| 12/02/2004 | US20040237721 In situ mining; long term maintainence of active conditions; environmentally friendly |
| 12/02/2004 | CA2525834A1 Method for extracting copper from leach solutions at elevated temperatures |
| 11/25/2004 | WO2004102711A2 Process for the concentration of noble metals from fluorine-containing fuel cell components |
| 11/25/2004 | WO2004101834A2 Treatment of base metal concentrate by a two-step bioleaching process |
| 11/25/2004 | CA2526104A1 Treatment of base metal concentrate |
| 11/25/2004 | CA2525933A1 Process for the concentration of noble metals from fluorine-containing fuel cell components |
| 11/23/2004 | CA2290006C Method of processing cyanide ions by ozone |
| 11/23/2004 | CA2288203C Integrated, tank/heap biooxidation process for the lixiviation of sulfide ores |
| 11/23/2004 | CA2221930C Chloride assisted hydrometallurgical extraction of metal |
| 11/23/2004 | CA2170149C Process for the elution of precious metals adsorbed on active carbon |
| 11/17/2004 | EP1478042A1 Process to enrich precious metals from fluorocontaining components of fuel cells |
| 11/17/2004 | CN1176232C Method of recovering rhodium from spent rhodium catalyst in carbonyl group synthesis reaction |
| 11/11/2004 | WO2004081245A8 Method for the fine refinement of gold |
| 11/11/2004 | WO2004081244A8 Method for the refinement of gold |
| 11/10/2004 | CN1174920C Sodium cyanide paste composition |
| 11/09/2004 | US6814777 Platinum and platinum alloy powders with high surface areas and low chlorine content and processes for preparing these powders |
| 11/04/2004 | US20040219082 Selective recovery of aluminium, cobalt and platinum values from a spent catalyst composition |
| 11/04/2004 | DE10249521B4 Verfahren zur Herstellung von zumindest nahezu palladiumoxidfreiem Palladium, insbesondere Palladiumschwamm A process for producing at least almost palladiumoxidfreiem palladium, especially palladium sponge |
| 11/02/2004 | CA2132334C Recovery of precious metal |
| 10/28/2004 | WO2004092448A2 Precious metal recovery using thiocyanate lixiviant |
| 10/28/2004 | US20040213715 Selective recovery of precious metal(s) |
| 10/28/2004 | DE10313887A1 Verfahren zum selektiven Gewinnen von Gold aus goldhaltigen Materialien A method for selectively recovering gold from gold-bearing materials |
| 10/21/2004 | WO2004090178A1 Recovery of platinum group metals |
| 10/21/2004 | US20040206207 Method for thiosulfate leaching of precious metal-containing materials |
| 10/21/2004 | US20040206206 Methods for detecting and extracting gold |
| 10/20/2004 | CN1172009C Technological method for reextracting gold from cyanide gold refining wast slag |
| 10/14/2004 | WO2004087970A1 Method for recovery of nonferrous, rare and precious metals from robust minerals |
| 10/14/2004 | US20040202607 Recover and recycle rhodium from spent partial oxidation catalysts |
| 10/14/2004 | US20040202593 Apparatus for purifying ruthenium using ozone |
| 10/14/2004 | US20040200782 Separating selective metals from a metal mixture, first by dissolving in acidic halide solution, complexing to from an organo-metallic complex, separating with an aqueous acid solution, metal deposition |
| 10/13/2004 | CN1170630C Catalysis type ammonia prepn. method, and method of prepn. and recovery of catalyst of ammonia synthesis |
| 10/07/2004 | WO2004085687A1 Method for selectively extracting gold from gold-bearing materials |
| 10/07/2004 | US20040197249 Precious metal recovery using thiocyanate lixiviant |
| 10/07/2004 | US20040194579 Reducing waste loss in hydrometallurgical processes using resin absorption |
| 10/06/2004 | EP1303640B1 Processing elemental sulfur-bearing materials using high temperature pressure leaching for sulfuric acid production and metal recovery |
| 10/06/2004 | CN1169976C Method for raising recovery rate of silver from ore containing sulfur, copper, lead, gold and silver |
| 10/06/2004 | CN1169943C Intermediate thermophilic acidophilic thiobacillu strin and its application |
| 10/05/2004 | US6800111 Concentrating the catalytic metal colloid on a filter; removing the catalytic metal of the catalytic metal colloid from the filter with an oxidizer; collecting the catalytic metal |
| 10/05/2004 | US6800110 Au, pt, pd, ag from low grade ore; collision and frequency electrical pulse pairs are repeatedly applied to transmission line; multifrequency magnetic field; ore, carbon, and copper exposed to heat and electrodynamic fields |
| 09/30/2004 | WO2004083467A2 Recovery of metal values from cermet |
| 09/30/2004 | WO2004018717A9 Electrostatically enhanced tribochemical methods and apparatus |
| 09/30/2004 | US20040187643 Method for obtaining cobalt and nickel from ores and ore concentrates |
| 09/30/2004 | DE10310699A1 Verfahren zur Feinstraffination von Gold Method for Feinstraffination of gold |
| 09/30/2004 | DE10310641A1 Verfahren zur Raffination von Gold Method for refining gold |
| 09/30/2004 | DE10231228B4 Rückgewinnung von Wertstoffen aus Zündkerzen und Glühkerzen Recovery of valuable materials from spark plugs and glow plugs |
| 09/28/2004 | US6797033 Method for recovering catalytic metals |
| 09/23/2004 | WO2004081245A1 Method for the fine refinement of gold |
| 09/23/2004 | WO2004081244A1 Method for the refinement of gold |
| 09/23/2004 | WO2004081243A1 Method for recovering platinum group element |
| 09/23/2004 | WO2004080596A1 Method for recovering catalyst material, catalyst material recovered by said recovering method, method for recovering substrate, substrate recovered by said recovering method |
| 09/21/2004 | US6793799 Electrolytic oxidation reduction sequence; purification of fission products (fp) |
| 09/16/2004 | US20040179985 a leaching phase in which the electronic scrap is treated with a leaching solution based on cupric chloride and an alkaline chloride to dissolve the metals exposed to said solution, with the exception of gold, and a subsequent recovery phase of gold in solid form. |
| 09/16/2004 | US20040177722 Recovery of metal values from cermet |
| 09/16/2004 | US20040177721 Recovery of metal values from cermet |
| 09/15/2004 | EP1457577A1 Process for recovering metals, in particular precious metals, from electronic scrap |
| 09/15/2004 | EP1456423A1 Electromagnetic pyrolysis metallurgy |
| 09/08/2004 | CN1526839A Method of recovering silver for silver-containing waste liquid |
| 09/08/2004 | CN1526838A Selecting processing method for catalyst carrier |
| 09/08/2004 | CN1526546A Composit Pd-containing material wire and its prepn and use |
| 08/12/2004 | WO2004018717A3 Electrostatically enhanced tribochemical methods and apparatus |
| 08/12/2004 | US20040156765 low operational and cost investments; at atmospheric pressure and at low oxidation temperatures prior to leaching; producing tailings devoid of elemental sulfur, sulfides, or soluble sulfates and by fast reaction rates |
| 08/12/2004 | US20040156764 separating waste catalysts of an internal-combustion engine having metallic catalyst carriers, without chemicals and toxic substances |
| 08/10/2004 | US6773487 Process for refining silver bullion with gold separation |
| 08/10/2004 | US6773485 Method for recovering catalytic metals using a porous metal filter |
| 08/05/2004 | US20040151657 Reating thiosulfate with sulfide compound; separation od sulfur; reducing sulfur to sulfide; circulation |
| 07/29/2004 | WO2004063404A1 Apparatus for rapidly making noble metal solution using plasma |
| 07/20/2004 | US6764662 Roasting rhodium in air to rhodium oxide (rh2o3); leaching, acidification, purification |
| 07/15/2004 | WO2004059018A1 Recovering metals from sulfidic materials |
| 07/08/2004 | WO2004056471A1 Method and plant for the thermal treatment of granular solids in a fluidized bed |
| 07/08/2004 | WO2004056468A1 Treatment of granular solids in a fluidized bed with microwaves |
| 07/08/2004 | DE10260743A1 Verfahren und Anlage zum thermischen Behandeln von körnigen Feststoffen in einem Wirbelbett Process and apparatus for the thermal treatment of granular solids in a fluidized bed |
| 07/08/2004 | DE10260742A1 Verfahren und Anlage zum thermischen Behandeln von körnigen Feststoffen in einem Wirbelbett Process and apparatus for the thermal treatment of granular solids in a fluidized bed |
| 07/08/2004 | CA2510792A1 Method and plant for the thermal treatment of granular solids in a fluidized bed |