| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 01/10/2008 | CA2656951A1 A process for the instantaneous control of precipitation of nickel and cobalt present in the leach liquor, by adjusting the ph of the solution |
| 01/09/2008 | EP1876247A1 Metal compound removal |
| 01/09/2008 | EP1874970A1 Improved titanium precipitation process |
| 01/09/2008 | EP1874969A1 Improved metal extraction |
| 01/09/2008 | EP1874968A1 Operating titanium precipitation process |
| 01/09/2008 | EP1874967A1 Titanium intermediate processing |
| 01/09/2008 | CN201003065Y High pressure dissolution kettle slag-separation device |
| 01/09/2008 | CN101100709A Method for reclaiming chromium in vanadium oxides producing process |
| 01/09/2008 | CN101100707A Saponification method of acidic extract for separating rare earth |
| 01/09/2008 | CN101100706A Method for immersing gold from printing wiring board |
| 01/09/2008 | CN101100286A Stable high-temperature borohydride formulation |
| 01/09/2008 | CN100360693C Potassium leach-out exploitation method from mamanite ore |
| 01/09/2008 | CN100360692C Method of directly producing ultra-fine lead oxide powder from galena concentrate |
| 01/09/2008 | CN100360428C Method for picking up vanadium pentexide from layer silicate without oxidation in furnace |
| 01/05/2008 | CA2593508A1 Amine-aldehyde resins and uses thereof in separation processes |
| 01/03/2008 | WO2008000810A1 Recycling of superalloys with the aid of an alkali metal salt bath |
| 01/03/2008 | WO2007130282A3 A method and composition for selectively stripping nickel from a substrate |
| 01/03/2008 | US20080003154 Solvent, extraction of impurities from concentrated metal sulphate solutions |
| 01/03/2008 | US20080000326 Cooling the melt to eutectic temperature to simultaneously form purified metal crystals and crystals containing a foreign element, and separating out foreign element crystals using a solid-solid separation, such as centrifugal force or an electromagnetic field; may be followed by solid-liquid separation |
| 01/03/2008 | CA2654516A1 Recycling of superalloys with the aid of an alkali metal salt bath |
| 01/02/2008 | CN200998728Y Electric light source filament fusion environment protective processor |
| 01/02/2008 | CN101096646A Ferrum reduction bacterium-mineral composite agent capable of accelerating organic chlorine degradation and preparation method thereof |
| 01/02/2008 | CN101096645A Gas production enterobacteria and uses thereof |
| 01/02/2008 | CN100359026C Method and apparatus for removing copper, cadmium and cobalt from zinc sulfate solution |
| 01/02/2008 | CN100359025C Method of extracting vanadium pentoxide from vanadium ore |
| 01/01/2008 | US7314552 Electrochemical method and apparatus for producing and separating ferrate(VI) compounds |
| 01/01/2008 | US7314066 Air distributor for a bioleaching system |
| 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 | CN101094926A Extraction of nickel and cobalt from a resin eluate stream |
| 12/26/2007 | CN101094712A Method and apparatus for purification of an aqueous solution form droplets of extraction solution |
| 12/26/2007 | CN101092248A Technique for producing vanadium pentoxide |
| 12/26/2007 | CN100357464C Technology of preparing fluorine less niobium oxide by oxalic acid system extraction method |
| 12/26/2007 | CN100357462C Method for comprehensively utilizing serpentine resource |
| 12/26/2007 | CN100357007C Process for reducing chromium nonvolatile residue resulting from air oxidation of cyclohexane |
| 12/25/2007 | US7311786 Passivation of sulfidic iron-containing rock |
| 12/21/2007 | WO2007143807A1 Recycling of solids in oxidative pressure leaching of metals using halide ions |
| 12/21/2007 | WO2007143777A1 Improved leaching method |
| 12/21/2007 | CA2650043A1 Recycling of solids in oxidative pressure leaching of metals using halide ions |
| 12/21/2007 | CA2649966A1 Improved leaching method |
| 12/19/2007 | EP1866447A1 Heap leaching of sulphide ores |
| 12/19/2007 | CN200992567Y Ground impregnating fluid drilling mouth device |
| 12/19/2007 | CN101090984A Method for the hydrometallurgical treatment of sulfide concentrate containing several valuable metals |
| 12/19/2007 | CN101090983A Leaching process in the presence of hydrochloric acid for the recovery of a value metal from an ore |
| 12/19/2007 | CN101089206A Methoxy-pheyl-sulfamic acid modified aniline copolymer used as silver ion absorbent |
| 12/19/2007 | CN101089205A Method for dump leaching producting copper and copper sulfate by copper oxide ore acid method |
| 12/19/2007 | CN100355918C Preparation method and use of single, compound arsenic with bio-effect |
| 12/19/2007 | CN100355917C Recovery of platinum group metals |
| 12/19/2007 | CN100355916C Method for separating hafnium from zirconium |
| 12/18/2007 | US7309474 A solvent extraction mixture comprising orthohydroxyarylaldoximes and orthohydroxyarylketoximes, and equilibrium modifiers; for extracting a metal from an acidic solution obtained by leaching ores |
| 12/13/2007 | WO2007140554A1 An ore heap leaching process for metal production with the aid of solar energy |
| 12/13/2007 | WO2007099536A3 Radioactive metal-bound beads |
| 12/12/2007 | EP1863944A1 Modification of copper/iron selectivity in oxime-based copper solvent extraction systems |
| 12/12/2007 | CN200988856Y Powdered ore acid hydrolysis reactor of external circulation heating with three phase separator |
| 12/12/2007 | CN101086039A Copper cobalt alloy separation and recovery method |
| 12/12/2007 | CN101086036A Process for recovering silver from waste fixer solution |
| 12/12/2007 | CN101086034A Wet method for extracting molybdenum from nickel-molybdenum ore |
| 12/12/2007 | CN101086033A Leaching iron removal trough for copper cobalt alloy separation and reclamation |
| 12/12/2007 | CN100354439C Method for the purification of copper chloride solution |
| 12/12/2007 | CN100354438C Method for extracting metal solvent |
| 12/12/2007 | CN100354437C Method for processing sulfide ores containing precious metals |
| 12/12/2007 | CN100354198C Low viscosity copper solvent extraction reagent formulations |
| 12/11/2007 | CA2478516C A process for the recovery of value metals from base metal sulfide ores |
| 12/11/2007 | CA2340432C Method for the removal of sulfur in the nickel leaching process |
| 12/06/2007 | WO2007137325A1 Process for recovering metals from resins |
| 12/06/2007 | US20070278106 Aluminum Production Process |
| 12/06/2007 | CA2652825A1 Process for recovering metals from resins |
| 12/05/2007 | CN101082085A Method for vanadium leaching by sulfate-adding wet-pile oxidation conversion of stone coal under atmospheric temperature and atmosphere pressure |
| 12/05/2007 | CN101082084A Technique for reclaiming smelting refined bismuth from bismuth slag |
| 12/05/2007 | CN101082082A High-heat hot material water quenching technology |
| 12/05/2007 | CN101082080A Method for reclaiming metal by copper smelting-furnace magnesia brick lining |
| 12/05/2007 | CN101082079A Plant arsenic-extraction pretreatment method for lowering smelting selection cost of high-arsenic gold ore |
| 12/05/2007 | CN101082078A One-furnace-two-section boiling baking process |
| 12/05/2007 | CN101082069A Technique for reclaiming iron from waste slag in production of boric acid and magnesium sulphate by collbranite |
| 12/05/2007 | CN100352954C Technology for separating rare earth element by extraction system added with modifier |
| 12/04/2007 | CA2243610C Procedure for concentrating ore containing oxidic nickel |
| 11/29/2007 | WO2006043154A8 Leaching process in the presence of hydrochloric acid for the recovery of a value metal from an ora |
| 11/29/2007 | US20070273071 Method and Apparatus for Controlling Metal Separation |
| 11/29/2007 | US20070272058 Direct Smelting Plant and Process |
| 11/29/2007 | US20070272055 Process for Gold and Silver Leaching with Thiourea Solutions |
| 11/28/2007 | EP1499751B1 Atmospheric pressure leach process for lateritic nickel ore |
| 11/28/2007 | CN101078064A Stone-like coal gas phase vanadium extracting method |
| 11/28/2007 | CN101078063A Method for leaching vanadium from stone-like coal by oxidation transformation |
| 11/28/2007 | CN101078061A Method for treating middle and low grade nickel laterite |
| 11/28/2007 | CN101078059A Desulfurization and transformation method for waste lead accumulator regenerative lead |
| 11/28/2007 | CN101078057A Method for smelting arsenic-containing gold concentrate |
| 11/28/2007 | CN101078055A Multiple roasting gold extracting method for unmanageable arsenic-containing gold concentrate |
| 11/28/2007 | CN101078054A Method for reclaiming metal palladium and palladium chloride from waste loading palladium hydrogenation catalyst |
| 11/28/2007 | CN101078053A Method for extracting metal indium, zinc and bismuth from blast furnace gas ash |
| 11/28/2007 | CN101078052A Method for synthetically reclaiming iron and non-ferrous metal from solid waste of iron and steel plant |
| 11/28/2007 | CN101078051A Integrated utilization technique for cyanidation gold-extracted waste slag |
| 11/28/2007 | CN101078050A Method for flotation of sulfur concentrate from gold-extracted tail slag |
| 11/28/2007 | CN101078047A Method of producing iron concentrate from cyanidation gold-extracted waste slag |
| 11/28/2007 | CN100351408C Method for extracting indium from high-indium high-iron zinc sulphide concentrates by pressure acid leach and solvent extraction |
| 11/28/2007 | CN100351407C Method for extracting gold from gold tailings |
| 11/28/2007 | CN100351406C Method for processing anode sludge |
| 11/28/2007 | CN100351405C Composition and process for the solvent extraction of metals using aldoxime or ketoxime extractants |
| 11/28/2007 | CN100351242C Processes and intermediates for preparing anti-cancer compounds |
| 11/27/2007 | US7299930 Collecting agent comprising ammoniated compounds (primary, secondary, tertiary amines), for use in the process of grinding and/or floating copper, molybdenum, zinc, and other contained mineral ores |