| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 06/22/2006 | WO2006064084A1 Process for removing manganese from water |
| 06/22/2006 | CA2590531A1 Extraction process for metals like gold and platinum including fine grinding, pulping and oxygenating |
| 06/21/2006 | EP1507878B1 Chloride assisted hydrometallurgical extraction of metals |
| 06/21/2006 | CN1791690A Method for handling waste material generated in a metallurgical process. |
| 06/21/2006 | CN1789445A Method for separating copper, arsenic and zinc from copper-smelting high-arsenic flue dust sulphuric acid leach liquor |
| 06/21/2006 | CN1260379C Chemical bulk stack dipping process for gold-containing tailing ore without pelletizing |
| 06/21/2006 | CN1260378C Method for separating rhodium from iridium solution by hydrogen reduction |
| 06/21/2006 | CN1260377C Ion exchange process of high concentration sodium tungstate solution |
| 06/21/2006 | CN1260376C Combined heap leaching process for copper ore |
| 06/20/2006 | US7063792 Treating aqueous medium containing solution of zirconium and hafnium compound with ligand which complexes with one of the metals; passing over filtration membrane which allows complexes to pass but retains metals not complexed |
| 06/15/2006 | WO2005047856A3 Automated mineral processing systems and methods |
| 06/15/2006 | US20060124893 Solvent extraction mixture for the separation of groups of base metals |
| 06/14/2006 | CN1788095A Recovery of platinum group metals |
| 06/14/2006 | CN1786226A Trentment method of tin copper slag |
| 06/14/2006 | CN1786225A Wet treatment method of iron containing nickel sulfide material |
| 06/14/2006 | CN1786224A Method for separating and recovering Ru from solution containing pt family |
| 06/14/2006 | CN1786220A Method of comprehensive recovering cyanide and valuable metal using ion type converting resin process |
| 06/14/2006 | CN1786219A Separation method of boron, magnesium and iron in paigeite |
| 06/14/2006 | CN1259436C A method for precipitation of silica in connection with zinc ore leaching |
| 06/08/2006 | WO2006058508A1 Method of extraction of europium(iii) and/or yttrium(iii) ions from concentrate of luminophore dust or sludge |
| 06/07/2006 | EP1666613A1 Improvement to silver and gold leaching method with thiourea solutions |
| 06/07/2006 | EP1664359A1 Method for separating trivalent americium from trivalent curium |
| 06/07/2006 | EP1664358A1 Method and apparatus for controlling metal separation |
| 06/07/2006 | EP1663456A1 Metal oxide processing methods and systems |
| 06/07/2006 | EP1663435A1 Method and equipment for purifying an extraction solution from aqueous entrainment and impurities |
| 06/07/2006 | EP1337677B1 Direct atmospheric leaching of highly-serpentinized saprolitic nickel laterite ores with sulphuric acid |
| 06/07/2006 | EP1274671B1 Method for recovering rhodium from hydroformylation products |
| 06/07/2006 | CN1784501A Microorganism and method for leaching mineral sulphides |
| 06/06/2006 | CA2321703C Apparatus and methods for recovering valuable metals |
| 06/06/2006 | CA2253290C Method and apparatus for adjusting the boundary surface between two controllably flowing and mutually separable solutions and for conducting both solutions out of the separation part |
| 06/06/2006 | CA2253281C Method and apparatus for recirculating a heavier solution from the separation part of two separable solutions into a mixing unit |
| 06/06/2006 | CA2246272C Process for recovery of zinc from sphalerite containing ores or concentrates |
| 06/01/2006 | US20060115410 Production of lithium compounds directly from lithium containing brines |
| 06/01/2006 | US20060115407 Continuous synthesis of technical grade lithium chloride by reacting lithium carbonate with hydrochloric acid |
| 06/01/2006 | US20060115396 Production of lithium compounds directly from lithium containing brines |
| 06/01/2006 | US20060113246 organic extraction solution is purified from entrainment of aqueous solution and impurities during hydrometallurgical liquid-liquid extraction; method treats an organic extraction solution, which is loaded with a valuable metal such as copper, to remove metal from the aqueous solution |
| 05/31/2006 | EP1660689A1 Method and apparatus for processing metalline sludge |
| 05/31/2006 | EP1660577A1 Treatment of aqueous compositions containing contaminants |
| 05/31/2006 | EP1567684B1 Method for eliminating mercury from solutions contaminated by the same |
| 05/31/2006 | EP1495149B1 Process for the treatment or removal of impurities in a hydrometallurgical extraction process |
| 05/31/2006 | CN1780923A Method for removing thallium from a zinc-containing solution |
| 05/30/2006 | CA2219572C Selective bioleaching of zinc |
| 05/30/2006 | CA2194349C Method and apparatus for extracting precious metals from their ores and the product thereof |
| 05/26/2006 | WO2006053376A1 Consecutive or simultaneous leaching of nickel and cobalt containing ores |
| 05/26/2006 | CA2587702A1 Consecutive or simultaneous leaching of nickel and cobalt containing ores |
| 05/24/2006 | CN2782706Y Semen heat exchange equipment structure |
| 05/24/2006 | CN1777462A Method and equipment for liquid-liquid extraction |
| 05/24/2006 | CN1777461A Method and equipment for liquid-liquid extraction |
| 05/24/2006 | CN1775972A Technology for extracting Gallium metal from lead-zine tail ore slug smelting by extracting-electrolytic method |
| 05/24/2006 | CN1775971A Mixed ammonia leaching method for multi-metal concretion and cobalt-rich skull in deep sea |
| 05/24/2006 | CN1775969A Method for leaching out inpurity iron in bauxite by chemical-biological method |
| 05/24/2006 | CN1775968A Tail-mineral pipeline leaching out technology |
| 05/24/2006 | CN1775967A Refuse-dump pipe injection leaching-out method |
| 05/24/2006 | CN1775966A Self-catalytic reduction ammonia-leaching method for multi-metal concretion in deep sea |
| 05/24/2006 | CN1257291C Process for enriching and preparing high-purity scandium by use of oxyl substituted acetic acid as extractant |
| 05/24/2006 | CN1257290C Method of extracting rare earth from apatite |
| 05/23/2006 | US7049492 Accumulation; recovering from plants |
| 05/23/2006 | US7048857 Using oxidizer |
| 05/23/2006 | CA2208026C Chloride assisted hydrometallurgical copper extraction |
| 05/17/2006 | EP1656463A1 Process for the high yield recovery of lead from spent lead-acid batteries with reduced associated production of slag and gaseous emissions |
| 05/17/2006 | EP1251920A4 Method and apparatus for metal removal by ion exchange |
| 05/17/2006 | CN2780779Y Impact type three-layer immersion barrel |
| 05/17/2006 | CN1774518A Reductive ammoniacal leaching of nickel and cobalt bearing materials |
| 05/17/2006 | CN1774517A Composition and process for the solvent extraction of metals using aldoxime or ketoxime extractants |
| 05/17/2006 | CN1256446C Reverse leaching impurity-removing rare earth concentrate decomposition method |
| 05/10/2006 | CN1769504A Method of recovering platinum and rhenium from waste catalyst |
| 05/10/2006 | CN1255562C Separating column for separating rare earth |
| 05/10/2006 | CN1255561C Method for preparing copper sulfate using copper concentrate |
| 05/10/2006 | CN1255560C Process for recovering rare earth from neodymium-ion-boron waste materials |
| 05/09/2006 | US7041262 Sequestering; ion exchanging |
| 05/09/2006 | US7041152 forming a slurry of a sulfuric acid solution in an oxygen-containing atmosphere in an agitated multiple-compartment pressure leaching vessel; separating the solution from the product slurry to yield a residue; and recovering a (especially precious) metal value from the residue. |
| 05/04/2006 | WO2006030279A3 Apparatus and process for recovery of metal values from leach or waste slurries |
| 05/04/2006 | WO2006013568A3 Recovery of precious metals from electronic scrap by hydrometallurgical processing |
| 05/04/2006 | US20060090602 Heap leaching |
| 05/04/2006 | DE19913550B4 Verfahren zur Herstellung von Seltenerdoxysulfid-Pulver Process for the preparation of powder Seltenerdoxysulfid |
| 05/03/2006 | EP1652944A1 Highly pure hafnium material, target thin film comprising the same and method for producing highly pure hafnium |
| 05/03/2006 | CN1766140A Novel copper recovery method by copper anode mud pressurization and pickling |
| 05/03/2006 | CN1766138A Potassium leach-out exploitation method from mamanite ore |
| 05/03/2006 | CN1766137A Hydrochloric acid-extraction method for preparing rutile titanium white |
| 05/03/2006 | CN1766136A Method for extracting gold |
| 05/03/2006 | CN1766128A Iron and alumnium extraction method from high iron bauxite |
| 05/03/2006 | CN1254551C Production of high-purity aluminium |
| 05/02/2006 | US7037482 Solvent extraction of a halide from a aqueous sulphate solution |
| 05/02/2006 | US7037357 Dissolving; alkaline treatment in brine solutions, then acidification |
| 04/27/2006 | WO2006043158A1 Leaching process in the presence of hydrochloric acid for the recovery of a value metal from an ore |
| 04/27/2006 | WO2006043154A1 Leaching process in the presence of hydrochloric acid for the recovery of a value metal from an ora |
| 04/27/2006 | WO2006016045A3 Method for separating and purifying hafnium and zirconium |
| 04/26/2006 | CN1763232A Apparatus for recovering Hg from Hg-containing sludge and waste water |
| 04/26/2006 | CN1253589C Wet method for zinc refining without iron slag |
| 04/26/2006 | CN1253374C Method of preparing high purity cerium trifluoride micro powder |
| 04/25/2006 | US7033480 Process for recovering platinum group metals from material containing base metals |
| 04/19/2006 | EP1570114B1 Separation of metals |
| 04/19/2006 | CN2773095Y Leaching and adsorbing agitation tank |
| 04/19/2006 | CN1761765A Process for the recovery of titanium in mixed chloride media |
| 04/19/2006 | CN1761523A Method for controlling oxygen when separating minerals from a slurry |
| 04/19/2006 | CN1760381A Technique for producing ammonium paratungstate from raw material of tungsten through iron exchange method of alkali breakdown |
| 04/19/2006 | CN1252293C Reduction of zinc oxide from complex sulfide concentrates using chloride processing |
| 04/19/2006 | CN1252292C Arsonium-containing cupric sulfide concentrates smelting process by wet method |
| 04/19/2006 | CN1252021C Method for recovery of metals by incineration of metal contg. basic ion exchange resin |
| 04/18/2006 | CA2213972C Hydrometallurgical process for the extraction of copper from sulphidic concentrates |