| Patents for C22B 11 - Obtaining noble metals (5,080) |
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| 07/10/2008 | CA2809742A1 Process for reduced alkali consumption in the recovery of silver |
| 07/10/2008 | CA2809738A1 Process for reduced alkali consumption in the recovery of silver |
| 07/10/2008 | CA2654818A1 Process for reduced alkali consumption in the recovery of silver |
| 07/09/2008 | CN101215641A Technique for separating and extracting platinum and silver from platinum-containing silver iodide waste material |
| 07/09/2008 | CN100400684C Method for recovering noble-metal from waste catalyst |
| 07/02/2008 | EP1937857A1 Process for recovery of metal values from materials containing arsenic and/or antimony |
| 06/26/2008 | WO2008075933A1 Process for manufacture of nanometric, monodisperse and stable metallic silver and product obtained therefrom |
| 06/26/2008 | CA2673259A1 Process for manufacture of nanometric, monodisperse, and stable metallic silver and product obtained therefrom |
| 06/19/2008 | US20080146680 particulate powder of silver (especially particle diameter on the nanometer order) has a content of each of I-, Cl-, SO4-, NO3- and CN- of 100 ppm or less; useful for electronics, coloring material for automobile paints, biochemical substance adorber, in the fields of medical treatment |
| 06/18/2008 | EP1931807A1 Method for processing nickel bearing raw material in chloride-based leaching |
| 06/12/2008 | WO2008036820A3 Method for oxidizing carbonaceous ores to facilitate precious metal recovery |
| 06/12/2008 | US20080138238 Fine Particulate Silver Powder and Production Method Thereof |
| 06/11/2008 | EP1678336A4 A process for the recovery of value metals from base metal sulfide ores |
| 06/11/2008 | CN201071388Y Leaching tank for gold ore sorting |
| 06/11/2008 | CN101195865A Method for extracting silver from silver slag |
| 06/11/2008 | CN100393898C Method of recovering silver for silver-containing waste liquid |
| 06/10/2008 | US7384448 Vaporizing silver precursor by heating in a crucible in a furnace, drawing a mixture of vaporized precursor and process gas into an inlet end of a conduit to cool the precursor and precipitate silver nanoparticles, and separating and collecting the particles |
| 06/10/2008 | CA2172340C Method of extracting metals from ore material using material bed comminution and tank and heap leaching |
| 06/05/2008 | US20080128357 Separation of platinum group metals |
| 06/04/2008 | CN100392122C Method for extracting gold (I) from enriched alkaline cyanide gold immersing liquid |
| 05/29/2008 | WO2008062785A1 Method for recovering ruthenium |
| 05/29/2008 | WO2008032288A3 Pre-treatment of feed to non-stirred surface bioreactor |
| 05/28/2008 | EP1629129A4 Precious metal recovery using thiocyanate lixiviant |
| 05/28/2008 | CN101186971A Method for reclaiming precious metal palladium from waste palladium-carbon catalyst |
| 05/28/2008 | CN100390310C Method for recovering silver from low silver contained industrial waste water |
| 05/22/2008 | WO2008059770A1 Method for collecting metal |
| 05/21/2008 | EP1922424A1 Method and apparatus for the recovery of refractory mineral ores |
| 05/21/2008 | EP1922422A2 Process for recovering platinum group metals, rhenium and gold |
| 05/21/2008 | EP1618219A4 Recovery of metal values from cermet |
| 05/15/2008 | US20080112864 Gold and silver recovery from polymetallic sulfides by treatment with halogens |
| 05/15/2008 | US20080110767 very effectively with a low frequency electrolysis current; current efficiencies of between 120% and 140% lead to the conclusion that a chemical dissolving process is also taking place; reversed polarity; passivation layer becomes detached with the inclusion of metallic constituents; Re, Pt, Ta, Hf |
| 05/15/2008 | DE10260743B4 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 |
| 05/14/2008 | CN100387344C Method for recovering ruthenium catalyst carried by active carbon |
| 05/08/2008 | US20080105088 Method for thiosulfate leaching of precious metal-containing materials |
| 05/07/2008 | EP1831411B1 Extraction process for metals like gold and platinum incl. fine grinding , pulping and oxygenating |
| 05/07/2008 | CN101173338A Method for smelting gold |
| 05/07/2008 | CN100386454C Wet gold purifying process |
| 05/07/2008 | CN100386450C Cooperated leaching method for low-grade intractable gold mine |
| 04/30/2008 | CN100384528C Novel high effective noble metal adsorbent and its preparing method |
| 04/24/2008 | WO2008047010A2 Method for treating waste containing precious metals and device for implementing said method |
| 04/24/2008 | CA2666767A1 Method for treating waste containing precious metals and device for implementing said method |
| 04/23/2008 | CN101166837A Cleaning of oil- contaminated granular solids, in particular spent catalysts |
| 04/23/2008 | CN100383263C Inhibition of the depletion of precious metal values from pregnant lixiviant solutions |
| 04/17/2008 | DE102006048091A1 Method for recovering a precious metal from a dry catalyst or a catalyst in an aqueous suspension comprises continuously inserting the catalyst at an insertion point into gas stream and continuously removing the precious metal |
| 04/10/2008 | US20080083300 Extraction Process |
| 04/09/2008 | CN101157986A Rapid nontoxic gold extracting method |
| 04/08/2008 | US7354517 Separation of platinum group metals |
| 04/03/2008 | US20080078269 Method for leaching gold |
| 04/02/2008 | EP1905854A2 Apparatus for removing ruthenium from solution containing platinum group metal |
| 04/02/2008 | CN101153357A Apparatus for removing ruthenium from solution containing platinum group metal |
| 03/27/2008 | DE102007037246A1 Schnelles Recyclingverfahren für Ruthenium-, Gold- und Titan-Beschichtungen aus hydrophilen bipolaren Platten aus PEM-Brennstoffzellen Fast recycling process for ruthenium, gold and titanium coatings of hydrophilic bipolar plates of PEM fuel cells |
| 03/26/2008 | CN101148703A Method for enriching precious metal by using yellow phosphorus electric furnace |
| 03/20/2008 | WO2008032288A2 Pre-treatment of feed to non-stirred surface bioreactor |
| 03/20/2008 | US20080066578 Precious metal recovery using thiocyanate lixiviant |
| 03/20/2008 | US20080066577 Leaching gold with dissolved thiocyanate and dissolved ferric iron producing precious metal-thiocyanate complex, reducing ferric iron to dissolved ferrous iron; introducing dissolved cyanide and converting to precious metal-cyanide complex |
| 03/20/2008 | DE102006040899A1 Method for recovering gold or silver comprises leaching out a gold or silver ore using a cyanide alkaline solution, filtering the solution to remove the leached ore, treating the filtrate using elemental zinc and further processing |
| 03/20/2008 | CA2664213A1 Pre-treatment of feed to non-stirred surface bioreactor |
| 03/19/2008 | CN101144183A Method for preparing gold micron crystal with surface enhanced Raman active branched surface |
| 03/13/2008 | WO2008030106A1 Method and device for catchment of platinum group metals in a gas stream |
| 03/13/2008 | WO2008013479A3 Method for refining precious metals |
| 03/13/2008 | US20080064771 defluorination using water in the supercritical state; remove fluorine or hydrogen fluoride in concentrated form; simple, versatile and environmentally friendly, air pollution control |
| 03/05/2008 | CN101135007A Production method of silver pressure leaching from vulcanised ore concentrate by using sulfocyanate solution |
| 03/05/2008 | CN100372952C Method of extracting gold tail slag from arsenic containing aurin ore then extracting gold and silver |
| 02/28/2008 | WO2008022986A2 Process for the recovery of metals from components |
| 02/27/2008 | CN100371478C Wet preprocessing method for difficult-to-treat gold ore containing arsenic and antimony |
| 02/21/2008 | US20080041270 Method for manufacturing metal nanoparticles |
| 02/19/2008 | CA2521110C Method for recovery of nonferrous, rare and precious metals from robust minerals |
| 02/19/2008 | CA2421780C Heat transfer in heap leaching of sulphide ores |
| 02/13/2008 | CN101121963A Method of recovering platinum group element and apparatus therefor |
| 02/12/2008 | US7329654 Heteroatom containing tetracyclic derivatives as selective estrogen receptor modulators |
| 02/06/2008 | CN101120107A Method for the recovery of gold from a gold-containing solution |
| 02/06/2008 | CN101120106A Method for the recovery of gold from sulphide concentrate |
| 02/06/2008 | CN100366770C Method for recovering platinum group element |
| 01/31/2008 | WO2008013479A2 Method for refining precious metals |
| 01/30/2008 | CN201012931Y Environment-friendly type alluvial gold clearing machine |
| 01/30/2008 | CN101113493A Vacuum combined smelting method for high-christophite concentrate |
| 01/30/2008 | CN101113492A Ion exchanger for extracting precious metals |
| 01/30/2008 | CN101113489A Leaching slot for gold ore choosing and stirring method thereof |
| 01/24/2008 | WO2007118257A3 Metal recovery from a tank bioleaching solution with the use of coated magnetic particles |
| 01/23/2008 | CN101111615A Extraction process for metals like gold and platinum including fine grinding, pulping and oxygenating |
| 01/17/2008 | WO2008006901A1 A method for recovering noble metals |
| 01/16/2008 | CN101107371A Use of non-ionic surfactants in the production of metals |
| 01/09/2008 | EP1876247A1 Metal compound removal |
| 01/09/2008 | CN101100706A Method for immersing gold from printing wiring board |
| 01/09/2008 | CN100360419C Method of separation/purification for high-purity silver chloride and process for producing high-purity silver by the same |
| 01/01/2008 | US7314604 Adding air to an acidic solution containing arsenic(V), copper, ferric iron and ferrous iron in a continuously stirred tankto oxidize the ferrous to ferric ion and heating to precipitate FeAsO4; recycling a portion of FeAsO4; seeding with FeAsO4 to enhance crystalline formation |
| 01/01/2008 | US7314500 Systems and methods for removing contaminate material from a flowable material |
| 12/29/2007 | CA2551166A1 Testing for, and extracting oxides or metallic gold and platinum group elements from a complex acidic solution |
| 12/27/2007 | US20070295613 Recovery Of Metals From Oxidised Metalliferous Materials |
| 12/26/2007 | CN101094928A Platinum recovery from fuel cell stacks |
| 12/26/2007 | CN101094927A Platinum recovery from nanostructured fuel cell catalyst |
| 12/26/2007 | CN101092663A Method for recovering gold from waste of gold plating procedure |
| 12/26/2007 | CN100357023C Method for preparing metal ruthenium nano-wire |
| 12/21/2007 | WO2007143807A1 Recycling of solids in oxidative pressure leaching of metals using halide ions |
| 12/21/2007 | CA2650043A1 Recycling of solids in oxidative pressure leaching of metals using halide ions |
| 12/20/2007 | US20070292325 Process for improving phase separations in solvent extraction circuits |
| 12/19/2007 | CN101089206A Methoxy-pheyl-sulfamic acid modified aniline copolymer used as silver ion absorbent |
| 12/19/2007 | CN101088678A Chemical reduction process of preparing silver powder |
| 12/19/2007 | CN100355917C Recovery of platinum group metals |
| 12/13/2007 | WO2007099536A3 Radioactive metal-bound beads |