| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 01/17/2007 | CN1295356C Stable alkali thiourea system |
| 01/17/2007 | CN1295355C Method of manufacturing electrolytic metal manganese using titanium white waste acid and manganese dioxide ore |
| 01/17/2007 | CN1295354C Device for digestion of aluminium oxide |
| 01/16/2007 | US7163634 Compositions for removing metal ions from aqueous process solutions and methods of use thereof |
| 01/16/2007 | US7163570 Chromatography absorption; complexing; elution |
| 01/11/2007 | WO2007004664A1 Process for recovery of metals and equipment therefor |
| 01/11/2007 | US20070009410 Method for separating trivalent americium from trivalent curium |
| 01/11/2007 | US20070007878 Method of recycling an exhausted selenium filter mass |
| 01/11/2007 | US20070007121 Photochemical transformation of metallic and non-metallic ions in an aqueous environment |
| 01/10/2007 | EP1740731A1 Iron oxide precipitation from acidic iron salt solutions |
| 01/10/2007 | EP1740730A1 Method for recovering gold |
| 01/10/2007 | CN1891840A Valuable metal concentration and comprehensive utilization method for baking red mud by halogen-ammonia salt |
| 01/10/2007 | CN1891839A Extracting agent for metal extraction, and its method and use |
| 01/09/2007 | US7160354 High temperature heap bioleaching process |
| 01/09/2007 | CA2329814C Method for reducing the level of radioactivity of a metal part |
| 01/09/2007 | CA2171715C Gold lixiviation using nitrogen and sulfur heterocyclic aromatic compounds |
| 01/04/2007 | US20070003462 Removal of non-water soluble substances from solutions of aqueous metal extracts |
| 01/03/2007 | EP1664359B1 Method for separating trivalent americium from trivalent curium |
| 01/03/2007 | CN1888099A Harmful impurity eliminating and density increasing roasting process for activated zinc oxide powder and zinc scum |
| 01/03/2007 | CN1888097A Gold purifying resin process |
| 01/03/2007 | CN1888096A Prepn process of Bayer process leaching additive |
| 01/03/2007 | CN1293232C Method for electrolytic production of ultra-pure zinc or zinc compounds from zinc primary and secondary raw materials |
| 01/03/2007 | CN1293211C Solid-liquid-liquid three-phase extracting and separating method |
| 01/02/2007 | US7157065 Production of lithium compounds directly from lithium containing brines |
| 01/02/2007 | US7157063 Process for the utilization of vanadium from chromium ore as vanadium (V) oxide |
| 01/02/2007 | US7157062 In metal leaching; using surfactant mixtures |
| 01/02/2007 | US7157003 Using mixture of extractant |
| 01/02/2007 | US7156959 purification of flue gases containing mercury and trace elements from combustion chambers, boilers or engineering plants, by contacting the gases with reactive chemical species generated in a plasma device to converted the metals into forms that can be scrubbed or filtered |
| 01/02/2007 | US7156894 Leaching metal values from biooxided concentrate of sulfide minerals; hydrometallurgy |
| 12/28/2006 | WO2006137914A2 Process for extraction of metals from ores or industrial materials |
| 12/28/2006 | WO2006136948A2 Chemical beneficiation of raw material, containing tantalum-niobium |
| 12/28/2006 | WO2005074651A3 Remediation of heavy metals in ammunition traps and shooting ranges |
| 12/28/2006 | US20060292309 Method for clarification of wood having been treated with chemical containing copper, chromium or arsenic |
| 12/28/2006 | CA2596708A1 Chemical beneficiation of raw material, containing tantalum-niobium |
| 12/27/2006 | EP1735483A2 Precious metal recovery |
| 12/27/2006 | CN1884594A Method for manufacturing rare earth saponifier using barium sulfide |
| 12/27/2006 | CN1883762A Method for treating tail gas in acidolysis main reaction in sulfuric acid method titanium pigment production |
| 12/26/2006 | US7153541 Method for inhibiting oxidation of metal sulfide-containing material |
| 12/21/2006 | WO2006134223A1 Method and apparatus for ore processing |
| 12/21/2006 | US20060283797 Method and equipment for liquid-liquid extraction |
| 12/21/2006 | CA2609931A1 Method and apparatus for ore processing |
| 12/20/2006 | EP1733063A1 Production of titania |
| 12/20/2006 | CN2848870Y High flow speed fixed bed ion exchange equipment |
| 12/20/2006 | CN1880489A Non-saponifiable extraction full-separating process for high concentration rare earth solution |
| 12/20/2006 | CN1290596C Method and equipment to control separation of a dispersion liquid-liquid extraction |
| 12/14/2006 | DE102005027128A1 Determination of the acid consumption of ore, in leaching processes, involves measuring photoluminescence and using the dependence of photoluminescence and of acid consumption on the mineral composition of the ore |
| 12/13/2006 | EP1731622A1 Method for recovering nickel or cobalt |
| 12/13/2006 | EP1597304B1 Phosphorous dendrimers, preparation method thereof and use of same for the extraction of actinides and lanthanides |
| 12/13/2006 | EP1334213B1 Process for regeneration of spent acid halide leach solutions |
| 12/13/2006 | CN1876855A Method for removing pyritic sulfur in gangue by microbe |
| 12/13/2006 | CN1876854A Method for extracting gold from gold tailings |
| 12/13/2006 | CN1289699C Process for preparing cerium hydroxide |
| 12/13/2006 | CN1289698C Method for separating/ recovering platinum family metal |
| 12/13/2006 | CN1289177C Polysulfonamide matrices and preparation method thereof |
| 12/13/2006 | CN1289173C Acid stable membranes for nanofiltration |
| 12/13/2006 | CN1289165C Method and equipment for guiding a dispersion in liquid-liquid extraction |
| 12/12/2006 | US7147832 Combining zirconium species, sulfate ion species, and hydrogen peroxide to provide acidic peroxide solution containing zirconium and sulfate, agitating to form precipitate, separating and washing |
| 12/12/2006 | US7147782 Method and apparatus for metal removal by ion exchange |
| 12/07/2006 | US20060276327 Monomeric nonmetallic compound, particularly a thiuram mono- or disulfide capable of forming a complex with a metal ion in an aqueous solution, entrapped within or supported onto a support material, and optionally a 1a or 2a metal dithiocarbamate; metal complexes formed also claimed |
| 12/06/2006 | EP1727916A1 Recovery of metals from oxidised metalliferous materials |
| 12/06/2006 | CN1875120A Leach extraction method |
| 12/06/2006 | CN1872992A Breeding method for sludge in granules, and method for retreaving gold from waste liquor of containing gold by using the breeding method |
| 12/06/2006 | CN1872727A Method for removing arsenic from waste solution of etching PCB in order to produce feed additive of copper |
| 12/06/2006 | CN1872701A Method for picking up vanadium pentexide from layer silicate without oxidation in furnace |
| 12/06/2006 | CN1872377A Method for saponifying extraction agent |
| 12/06/2006 | CN1288259C Process for extracting zinc and indium from low-grade zinc concentrates by wet method |
| 12/05/2006 | US7146248 Automated mineral processing systems and methods |
| 12/05/2006 | US7144493 Process for the electrochemical decomposition of powders and electrolysis cells suitable therefor |
| 11/29/2006 | CN1870207A Image display apparatus, disassembly processing method therefor, and component recovery method |
| 11/29/2006 | CN1869258A Parallel floatation process of desilionization for bauxite |
| 11/29/2006 | CN1869198A Bacterial strain for leaching out ore or clean ore comprising metallic sulfide ore component and leaching method thereof |
| 11/29/2006 | CN1286995C Mixed rare earth concentrate decomposition method |
| 11/23/2006 | WO2005035804A9 Recovery of precious metals from waste catalysts |
| 11/23/2006 | US20060263282 Process for nickel and cobalt extraction from laterite ores |
| 11/22/2006 | EP1576200B1 A process for the recovery of adsorbed palladium from spent silica |
| 11/22/2006 | CN1865463A Ion exchange process for preparing ammonium tungstate solution |
| 11/22/2006 | CN1865462A Method for direct extraction of indium from fluosilicic acid slurry |
| 11/22/2006 | CN1865461A Method for floatation and recovery of lead zinc mixed concentrate from gold mine cyaniding slag tails |
| 11/22/2006 | CN1865460A Method for extracting vanadium,molybdenum,nickel,cobalt,aluminium from waste aluminium base catalyst |
| 11/22/2006 | CN1285769C Electrochemical decomposition method for high-temp. alloy |
| 11/22/2006 | CN1285743C Method for recovering titanium dioxide from titanium dioxide bearing materials like steel making slags |
| 11/21/2006 | US7138058 Acid stable membranes for nanofiltration |
| 11/21/2006 | US7138005 Nickel refining method |
| 11/21/2006 | CA2262079C Biodegradable complexing agents for heavy metals |
| 11/16/2006 | WO2006119611A1 A process for the treatment of electric and other furnace dusts and residues containing zinc oxides and zinc ferrites |
| 11/16/2006 | WO2006119559A1 An improved process for heap leaching of nickeliferous oxidic ores |
| 11/16/2006 | WO2006043154A9 Leaching process in the presence of hydrochloric acid for the recovery of a value metal from an ora |
| 11/16/2006 | CA2608117A1 An improved process for heap leaching of nickeliferous oxidic ores |
| 11/16/2006 | CA2590927A1 A process for the treatment of electric and other furnace dusts and residues containing zinc oxides and zinc ferrites |
| 11/15/2006 | CN1861817A Tech. of extracting metallic cobait from magnetic-iron ore tailing slag |
| 11/15/2006 | CN1861816A Tech. of recovering old silver platinum noble metals from antimony-smelting waste slag |
| 11/15/2006 | CN1861815A Process of continuously leaching manganese oxide ore |
| 11/15/2006 | CN1284870C Gold extracting process for high arsenic gold mine |
| 11/15/2006 | CN1284869C Method for soaking valuable metal from polymetallic nodule in ocean |
| 11/14/2006 | CA2467288C A process for the recovery of value metals from material containing base metal oxides |
| 11/09/2006 | WO2006117424A1 Method for the recovery of valuable metals and arsenic from a solution |
| 11/09/2006 | US20060248983 Heap leach |
| 11/09/2006 | CA2605005A1 Method for the recovery of valuable metals and arsenic from a solution |
| 11/08/2006 | CN1860243A Improved hydrometallurgical processing of manganese containing materials |
| 11/08/2006 | CN1858277A Method for extracting metal from printed circuit board |