| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 11/08/2006 | CN1858276A Method for extracting metal copper using microbe and its use |
| 11/08/2006 | CN1858275A Mehtod for producing zinc concentrate and lead concentrate using zinc oxide ore and zinc slag |
| 11/08/2006 | CN1858274A New treating method for nickel oxide ore |
| 11/08/2006 | CN1858273A Normal pressure leaching method for treating low iron nickel oxide ore |
| 11/08/2006 | CN1858272A Combined process for organic solvent extracting zinc and wet zinc refining |
| 11/08/2006 | CN1283816C Method for extracting nickel matte |
| 11/08/2006 | CN1283815C Method for extracing zinc from waste zinc acetate |
| 11/07/2006 | CA2293691C Method for separating and isolating precious metals from non precious metals dissolved in solutions |
| 11/02/2006 | EP1716262A1 Solvent extraction process for separating cobalt and/or nickel from impurities in leach solutions. |
| 11/02/2006 | EP1716261A1 Aluminium production process |
| 11/02/2006 | EP1499751A4 Atmospheric pressure leach process for lateritic nickel ore |
| 11/01/2006 | CN1856585A Method for processing anode sludge |
| 10/31/2006 | US7128840 Ultrasound enhanced process for extracting metal species in supercritical fluids |
| 10/26/2006 | WO2006113944A1 Separation of nickel from cobalt by using chloridizing solution and cobalt-selective resin |
| 10/25/2006 | EP1713942A1 Heap bioleaching process |
| 10/25/2006 | EP1488015B1 Process for the recovery of nickel from spent catalyst |
| 10/24/2006 | US7125436 During metal recovery process from an ore, a seeding agent is introduced to provide a nucleation site for the crystallization and/or growth of solid species which otherwise tend to passivate the reactive process or encapsulate the metal value |
| 10/19/2006 | US20060233686 Multiple stage leaching of titaniferous material in a sulfate process including leaching the material with solution containing H2SO4; separating TiOSO4 from liquor; hydrolysis; separating solid phase containing hydrated titanium oxides calcining to form TiO2; further leaching solid phase from 1st leach |
| 10/19/2006 | DE112004001718T5 Verfahren zum Verarbeiten von Anodenschlamm A method for processing anode sludge |
| 10/18/2006 | CN1847422A Electrogenerated chlorine or chloride compound leaching method and its apparatus |
| 10/18/2006 | CN1280434C Process for the treatment or removal of impurities in a hydrometallurgical extraction process |
| 10/18/2006 | CN1280433C Chlorination treatment process of Se contg. substance |
| 10/12/2006 | WO2006105614A1 Improved titanium precipitation process |
| 10/12/2006 | WO2006105613A1 Improved metal extraction |
| 10/12/2006 | WO2006105612A1 Operating titanium precipitation process |
| 10/12/2006 | WO2006105611A1 Titanium intermediate processing |
| 10/12/2006 | DE102005003033B3 Aufschlussreaktorverschlussvorrichtung Digestion reactor closure device |
| 10/11/2006 | CN1846005A Process for the high yield recovery of lead from spent lead-acid batteries with reduced associated production of slag and gaseous emissions |
| 10/11/2006 | CN1846003A Oxidative leach process |
| 10/11/2006 | CN1844422A Method for extracting copper from organic silicon chemical waste residue leaching liquid of chloride and mixed salts containing copper |
| 10/11/2006 | CN1844421A Method for extracting scandium from red mud |
| 10/10/2006 | US7118719 Using sulfate; neutralization, leaching, electrolysis |
| 10/10/2006 | CA2207575C Process for recovery of metals from used nickel-metal hydride storage batteries |
| 10/10/2006 | CA2183197C Method for the processing of copper minerals |
| 10/10/2006 | CA2119635C Method of geochemical prospecting |
| 10/05/2006 | WO2006104816A1 Modification of copper/iron selectivity in oxime-based copper solvent extraction systems |
| 10/05/2006 | US20060219640 Method for handling waste material generated in a metallurgical process |
| 10/05/2006 | CA2602595A1 Modification of copper/iron selectivity in oxime-based copper solvent extraction systems |
| 10/04/2006 | CN1842608A Iron oxide precipitation from acidic iron salt solutions |
| 10/04/2006 | CN1277939C Method of leaching copper in copper containing pyrite using bacteria |
| 09/28/2006 | WO2006099659A1 Heap leaching of sulphide ores |
| 09/28/2006 | US20060213332 Zinc calcine and zinc sulphide, are leached in three stages, in which the sulphuric acid content of the stages rises in accordance with the direction in which the solids are moving; solids and solution formed in the leaching stages are routed countercurrently |
| 09/28/2006 | CA2602400A1 Heap leaching of sulphide ores |
| 09/27/2006 | CN1837396A Quaternary amorphous alloy, its preparation method and application |
| 09/27/2006 | CN1837386A Wet-method for leaching of low-grade high-alkali hybrid copper ore, nickel ore and zinc ore |
| 09/27/2006 | CN1837384A Method for separating Te from Rh solution |
| 09/27/2006 | CN1837382A Cooperated leaching method for low-grade intractable gold mine |
| 09/27/2006 | CN1837381A Highly-efficiency process for extracting fine nickel from waste electrolyte |
| 09/27/2006 | CN1837380A Wet-method process for reclaiming zinc from zinc leaching residue |
| 09/27/2006 | CN1836764A Slagoff method and device for solution storage trough containing suspended matter |
| 09/21/2006 | WO2005098060A8 Method for recovering nickel or cobalt |
| 09/21/2006 | WO2005083131A8 Extractants for palladium and process for separation and recovery of palladium |
| 09/20/2006 | EP1702080A1 Improved bacterial oxidation of sulphide ores and concentrates |
| 09/20/2006 | CN1276108C Chloride melt process for the separation and recovery of zinc |
| 09/20/2006 | CN1276104C Deep-purifying detinning method of sodium tungstate solution |
| 09/19/2006 | US7109366 Compositions for removing metal ions from aqueous process solutions and methods of use thereof |
| 09/19/2006 | US7108839 Process for the recovery of palladium from spent silica |
| 09/19/2006 | CA2248975C A process for the production titanium concentrate having a chemical composition similar to ilmenite from highly impure anatase ores |
| 09/19/2006 | CA2214523C Purification of metal containing solutions |
| 09/19/2006 | CA2144925C A process for the controlled leaching of natural manganese dioxide by using hydrochloric acid |
| 09/14/2006 | WO2006095325A2 Ore beneficiation flotation processes |
| 09/14/2006 | US20060205920 star polymers comprising polyamines having terminal carbamylmethyl phosphine oxide groups, used for extracting metals from aqueous effluents coming from spent nuclear fuel reprocessing plants or spent nuclear fuel dissolution solutions |
| 09/13/2006 | EP1235941A4 Recovery of metal values from aqueous solutions and slurries |
| 09/13/2006 | CN1831160A Method for inhibiting scale-forming during the process of leaching nickle from nickle-contg. laterate by sulfuric acid |
| 09/13/2006 | CN1274608C Method of treating heavy-metal-containing wastewater with sulfidizing agent and treatment apparatus |
| 09/12/2006 | US7105084 Hybrid flow pond |
| 09/12/2006 | CA2073589C Biooxidation process for recovery of metal values from sulfur-containing ore materials |
| 09/06/2006 | EP1456427A4 Integrated ammoniacal solvent extraction and hydrogen reduction of nickel |
| 09/06/2006 | EP1325165B1 Recovery of nickel and cobalt values from a sulfidic flotation concentrate by chloride assisted oxidative pressure leaching in sulfuric acid |
| 09/06/2006 | CN2813632Y Air lifting biological dripping filtering reactor |
| 09/06/2006 | CN1829810A A process for reclaiming phosphorus |
| 09/06/2006 | CN1829809A Method and apparatus for controlling metal separation |
| 09/06/2006 | CN1829808A Method and apparatus for processing metalline sludge |
| 09/06/2006 | CN1829807A Highly pure hafnium material, target and thin film comprising the same and method for producing highly pure hafnium |
| 09/06/2006 | CN1828018A Ribbed terrace method for wet type stack of fine tailings |
| 09/06/2006 | CN1827806A Method for extracting tungsten and other rare metals from waste hard alloy |
| 09/06/2006 | CN1827805A Sulfide ore treatment technology by thermoacidophile |
| 09/06/2006 | CN1827804A Method for comprehensively utilizing serpentine resource |
| 09/06/2006 | CN1827803A Iron slag free wet-method zinc smelting and indium extracting method and method for preparing zinc ferrite |
| 09/06/2006 | CN1827802A Method for recovering valuable metals from electroplating sludge |
| 09/05/2006 | US7102229 Capacitor containing high purity tantalum |
| 08/31/2006 | WO2006016892A3 Cesium and strontium extraction using a mixed extractant solvent including crown ether and calixarene extractants |
| 08/31/2006 | US20060192175 Low viscosity copper solvent extraction reagent formulations |
| 08/31/2006 | US20060191377 Method for processing elemental sulfur-bearing materials using high temperature pressure leaching |
| 08/30/2006 | EP1694425A1 A method of recycling an exhausted selenium filter mass |
| 08/30/2006 | CN1826419A Interlaced series parallel configuration for metal solvent extraction plants |
| 08/30/2006 | CN1824814A Full separating technique of non-saponification organic phase extracting rare-earth |
| 08/30/2006 | CN1824607A Vanadium extraction technology of high aluminium slag |
| 08/30/2006 | CN1272450C Acid resistant mutagenic bacteria and its use in leaching process of concentrate |
| 08/24/2006 | WO2006087413A1 Method for the recovery of gold from a gold-containing solution |
| 08/24/2006 | WO2006087412A1 Method for the recovery of gold from sulphide concentrate |
| 08/24/2006 | WO2005098092A3 Precious metal recovery |
| 08/24/2006 | US20060185475 Reducing cyanide consumption in gold recovery from finely ground sulphide ores and concentrates |
| 08/24/2006 | CA2598181A1 Method for the recovery of gold from a gold-containing solution |
| 08/24/2006 | CA2598055A1 Method for the recovery of gold from sulphide concentrate |
| 08/23/2006 | EP1692079A1 Method for separating pb and ni from co-containing mixtures |
| 08/23/2006 | CN1823173A Method for producing concentrates |
| 08/23/2006 | CN1823172A Process for recovery of nickel and cobalt by heap leaching of low grade nickel or cobalt containing material |
| 08/23/2006 | CN1823171A Method for processing sulfide ores containing precious metals |
| 08/23/2006 | CN1821428A Leaching method for complicated cupric sulfide aurin ore |