| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 09/03/2008 | CN101255502A Process for comprehensive recovery of indium, cadmium, thallium and zinc from lead system smoke |
| 09/03/2008 | CN101255501A Method for reclaiming platinum-silver-iodine form platinum-containing silver iodide slag |
| 09/03/2008 | CN101255499A Method for solid-phase gold extraction from alkaline cyanide solution |
| 09/03/2008 | CN101255498A Full-automatic inner loop chamber type extraction apparatus |
| 09/03/2008 | CN101255497A Method for removing iron and heavy metals during process of manganese sulfate solution preparation |
| 09/03/2008 | CN101255496A Method for synchronously reclaiming porcelain clay and rear earth from ionic adsorption type rear earth ore |
| 09/03/2008 | CN101255495A Solution leaching method for recovery utilization of waste and old zinc-manganese alkaline dry battery |
| 09/03/2008 | CN101255494A Method for leaching nickel-cobalt from low-grade laterite nickel ore |
| 09/03/2008 | CN101254948A Production of pure molybdenum oxide from low grade molybdenite concentrates |
| 09/03/2008 | CN100415904C Production of titania |
| 09/03/2008 | CN100415340C Slagoff method and device for solution storage trough containing suspended matter |
| 09/01/2008 | CA2623628A1 A process for separating iron from other metals in iron containing feed stocks |
| 08/28/2008 | WO2008101396A1 Preprocessing method of an organic extractant and the preprocessed product and the use thereof |
| 08/28/2008 | WO2008101305A1 Method for the elution of 18f fluoride trapped on an anion-exchange phase in a form suitable for efficient radiolabeling without any evaporation step |
| 08/27/2008 | EP1789599B1 Tank bioleaching process |
| 08/27/2008 | CN101250661A Method for producing low carbon ferromanganese |
| 08/27/2008 | CN101250632A Method for smelting low carbon manganese-silicon using artificialness Mn3O4 in sublimation electric furnace |
| 08/27/2008 | CN101250626A Method for extracting metallic nickel cobalt from irony nickel mine |
| 08/27/2008 | CN101250625A Method for detaching impurity copper from solution containing nickel |
| 08/27/2008 | CN101250623A Biological heap leaching metal technique for low grade unwieldiness gold ore |
| 08/27/2008 | CN101250622A Complete wet way comprehensive processing method for serpentine mine |
| 08/27/2008 | CN100413983C Method of eliminating passivation film for chalcopyrite at lixiviating course by sulfur oxidizing bacteria |
| 08/27/2008 | CN100413982C Ion-aluminum separation technique of high-alumina brown iron ore |
| 08/27/2008 | CN100413981C Method of acid extracting aluminium from high-silicon alumina-containing raw mineral materials |
| 08/26/2008 | US7416882 Treatment of soil impurities; coarse particle sizes; biooxidation |
| 08/26/2008 | US7416712 Extracting metals from arsenosulfidic and/or sulfidic cobalt and/or nickel ore or concentrate by conversion to cobalt monosulfide and/or nickel sulfide by sulfur or sulfur-containing arsenic compounds; sulfiding; leaching of soluble metals and rare earth elements |
| 08/26/2008 | US7416711 First leaching the low magnesium containing ore fractions such as limonite, with sulfuric acid (H2SO4), sequentially followed by the leaching of the high magnesium-containing ore fractions using H2SO4 released in iron precipitation; iron residue free jarosite solid; recover nickel and cobalt |
| 08/26/2008 | US7416462 Glass substrate processing method and material removal process using x-ray fluorescence |
| 08/21/2008 | WO2008099681A1 Triazinethiol-loaded carbide, method for producing triazinethiol-loaded carbide, method for adsorbing metal ion, and method for recovering metal |
| 08/21/2008 | US20080197545 Leaching process |
| 08/20/2008 | EP1587964B1 Process for nickel and cobalt extraction from laterite ores |
| 08/20/2008 | CN101248196A Operating titanium precipitation process |
| 08/20/2008 | CN101245417A Method for recycling tungsten from waste liquor with macroreticular weakly base resin |
| 08/20/2008 | CN101245415A Abstraction impurity removal method for cobalt sulphuric leachate |
| 08/20/2008 | CN101245414A Method for extracting metal from laterite mine |
| 08/20/2008 | CN101245410A Method for roasting high calcium vanadium slag with fluidizing apparatus |
| 08/20/2008 | CN101245407A Selecting-smelting method for processing complex hard-washing low ore grade pulmbous sulfide zincium mine |
| 08/20/2008 | CN100412212C Process for leaching and separating metal components in heavy metal sludge by ultrasonic activation |
| 08/19/2008 | CA2333377C Mineral collector compositions of fatty hydroxamic acid in admixture with an oil and process of making same |
| 08/14/2008 | WO2007087698A8 Hybrid process using ion exchange resins in the selective recovery of nickel and cobalt from leaching effluents |
| 08/14/2008 | WO2005018771A3 Uranium enrichment using microorganisms |
| 08/14/2008 | US20080191395 Apparatus for producing nano-particles of silver |
| 08/13/2008 | EP1954843A2 Leaching process in the presence of hydrochloric acid for the recovery of a value metal from an ore |
| 08/13/2008 | EP1769093B1 Optimization of bioleaching process |
| 08/13/2008 | EP1716262A4 Solvent extraction process for separating cobalt and/or nickel from impurities in leach solutions. |
| 08/13/2008 | EP1481103B1 Method to reduce hydrosulphide and arsine emissions during wet ore processing |
| 08/13/2008 | CN101240380A Technique for extracting silver from copper anode mud solution after pretreatment |
| 08/13/2008 | CN101240378A Technique for reclaiming rhenium from multiple mixed acid system |
| 08/13/2008 | CN101240377A Method for separating nuclear fuel material from ionic liquid extraction system |
| 08/13/2008 | CN100410399C Method for nickel and cobalt recovery from laterite ores by reaction with concentrated acid and water leaching |
| 08/13/2008 | CN100410396C Ru and/or chlorination treatment method of Rh |
| 08/13/2008 | CN100410395C Recovery method of rhodium |
| 08/13/2008 | CN100410394C Mehtod for producing zinc concentrate and lead concentrate using zinc oxide ore and zinc slag |
| 08/12/2008 | CA2381157C Bioleaching of sulphide minerals |
| 08/07/2008 | US20080184849 Extraction a metal; concentration; minaturization of concentration; extraction; recovering of gold |
| 08/07/2008 | US20080184847 Method for Processing Ore to Minimize the Production of Acidic Wastes |
| 08/06/2008 | EP1951920A1 The combined leaching process |
| 08/06/2008 | EP1769092A4 Improved leaching of base metals |
| 08/06/2008 | CN201095646Y Leaching tower for dense moving bed |
| 08/06/2008 | CN201095645Y Adsorption tower for dense moving bed |
| 08/06/2008 | CN101235442A Copper extracting smelting technique for copper ore dressing tailings |
| 08/06/2008 | CN101235441A Acid picking method for extracting mineral from serpentine |
| 08/06/2008 | CN101235440A Method of comprehensively utilizing serpentine |
| 08/06/2008 | CN101235439A Method for reclaiming nickel and chromium from stainless steel sludge |
| 08/06/2008 | CN101235438A Process flow for leaching pyrolusite by sulfur dioxide |
| 08/06/2008 | CN101235437A Microwave pretreatment method of cobalt-copper-iron alloy for leaching valuable metal |
| 08/06/2008 | CN100408707C Method for recovering rhodium |
| 08/06/2008 | CN100408706C Method for separating Te from Rh solution |
| 08/06/2008 | CN100408705C Nano-filtration method for separating magnesium and enriching lithium from salt lake brine |
| 08/06/2008 | CN100408704C Method for producing nano-magnetic FeO particle by iron extracted and utilized in tin tails |
| 08/05/2008 | CA2384664C Stable ferric arsenate precipitation from acid copper solutions whilst minimising copper losses |
| 07/31/2008 | WO2008090672A1 Method and apparatus for collection of indium from etching waste solution containing indium and ferric chloride |
| 07/31/2008 | WO2008090671A1 Method and apparatus for collection of indium from etching waste solution containing indium and ferric chloride |
| 07/31/2008 | WO2008046114A3 Accelerated heat generation in heap bioleaching by controlled carbon dioxide addition |
| 07/31/2008 | US20080179568 Extractant composition including crown ether and calixarene extractants |
| 07/31/2008 | US20080178706 Heap bioleaching process |
| 07/31/2008 | CA2619331A1 Coatings, their production and use |
| 07/30/2008 | CN101230470A Method for reclaiming metals by classified electrolysis of electron wastes |
| 07/30/2008 | CN101230469A Method for directly reclaiming metals from electron wastes |
| 07/30/2008 | CN101230422A Method for enriching nickel from lateritic nickel with co-production of iron-oxide red |
| 07/30/2008 | CN101230421A Method for extracting gold from waste circuit boards |
| 07/30/2008 | CN101230420A Hybrid extraction method and extractant for extraction separation of rare earth elements |
| 07/30/2008 | CN101230419A Method for extracting vanadium pentoxide and comprehensively extracting ammonium alum and iron-oxide red from vanadium-containing stone coal or vanadium-containing ash slag |
| 07/30/2008 | CN101230418A Gold concentration method for vertical-groove vein gold seam gold mining |
| 07/30/2008 | CN100406595C Preparation method and use of bioactive sing-compound arsenic |
| 07/30/2008 | CN100406593C Preparation of zinc chemicals from the minor flow of a process |
| 07/30/2008 | CN100406591C Method for extracting metal copper from electronical wastes |
| 07/30/2008 | CN100406590C Process for preparing grain-size-adjustable rare earth fluoride micro-powder in neutral phosphorus (phosphine) extraction system |
| 07/30/2008 | CN100406589C Method for preparing embedding ion liquid and neutral phosphor (phosphine) extractant composite material and its use |
| 07/30/2008 | CN100406588C Aluminium production process |
| 07/30/2008 | CN100406587C Starting process of wet zinc-making system |
| 07/29/2008 | US7404937 Comprises tubular reactor with continuous serpentine path; comprises pretreated feedstock including ilmenite, leueoxene, or titania slag leached with hot hydrochloric acid |
| 07/29/2008 | US7404924 Flotation device |
| 07/29/2008 | CA2370923C A method for extracting copper from an aqueous solution |
| 07/24/2008 | US20080173133 Sulphide mineral slurry; reactor process is controlled by varying the rate of supply of sparging gas to the reactor, and the energy supplied to a motor-driven agitator in the reactor, in response to the measured or inferred oxygen demand of the slurry |
| 07/23/2008 | CN201089782Y Chloridizing leaching kettle communicating tube with deroppilation device |
| 07/23/2008 | CN101225481A Metallurgical extraction method for molybdenum-tungsten oxide bulk concentrate |
| 07/23/2008 | CN101225480A Combined vanadium leaching method for stone coal |
| 07/23/2008 | CN101225476A Process for reclaiming copper from lead copper matte |
| 07/23/2008 | CN101225472A Device for extracting precious metals from mixed ionic dilute solution |