| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 12/18/2008 | US20080311647 Method of Biotreating a Solid Material Comprising an Organic Compound |
| 12/18/2008 | US20080308468 Ore Beneficiation Flotation Processes |
| 12/17/2008 | CN101323915A Method for extracting molybdenum and nickel by molybdenum nickel ore whole wet method |
| 12/17/2008 | CN101323914A Process for extracting vanadic anhydride by high calcium calcination |
| 12/17/2008 | CN101323909A Method of microwave selective reduction roasting-dilute acid leaching nickel oxide ore |
| 12/17/2008 | CN101323908A Method for reclaiming cobalt from manganese cobalt slag |
| 12/17/2008 | CN101323906A Method for separating heating element Sr and metal element Ba from high-level waste |
| 12/17/2008 | CN100443604C Extraction and separation technology for reclaiming main impurity in indium in hydrochloric acid system |
| 12/17/2008 | CN100443601C Method for producing metal gallium with coproduction of alumina |
| 12/16/2008 | US7465402 Method and equipment for guiding dispersion in liquid-liquid extraction |
| 12/16/2008 | US7465386 Electrolytic method in diaphragm-type cell |
| 12/16/2008 | US7465334 Zinc recovery process |
| 12/11/2008 | DE102007038750A1 Method for separating mercury from process water, involves treating process water by multi-stage reactor plant with chlamydomonas reinhardtii or similar algae biomass as biosorbent |
| 12/10/2008 | EP1999284A1 Improved processing of metal values from concentrates |
| 12/10/2008 | EP1999283A2 Method of preparing ceramic powders using chelate precursors |
| 12/10/2008 | EP1769094B1 Scavenger supports with amino-functionalised pendant ketoester or ketoamide groups for removing metals from solutions |
| 12/10/2008 | CN101319279A Water vapour circulation type method for manufacturing spongy copper |
| 12/10/2008 | CN101319276A Preextraction method for organic extraction agent, product and uses thereof |
| 12/10/2008 | CN101319275A Process for solvent extraction separation purification of rare earth element |
| 12/10/2008 | CN100441708C Stripping method for diasporite type bauxite |
| 12/10/2008 | CN100441707C Wet chemical method for lead zinc composite extraction from lead zinc tailings |
| 12/10/2008 | CN100441261C Method and apparatus for purification of slightly water-soluble organic solution from aqueous entrainment |
| 12/09/2008 | US7461449 Apparatus for reclamation of precious metals from circuit board scrap |
| 12/09/2008 | CA2296116C Method for phytomining of nickel, cobalt and other metals from soil |
| 12/03/2008 | EP1799872A4 Separation apparatus |
| 12/03/2008 | CN101314820A Method for producing zinc finemeal with zinc oxide mine or zinc slag |
| 12/03/2008 | CN101314818A Golden shifting process of biological oxidation-torrefaction-cyanidation |
| 12/03/2008 | CN101314815A Atmosphere-pressure catalytic oxidation method for high-sulfur high-arsenic hard washing golden ore concentrate |
| 12/03/2008 | CN101314814A Method for producing rare earth ferro-silicon raw material with fluorine containing alkali waste water |
| 12/03/2008 | CN100439520C Method for separating Sr2+ - y3+ |
| 11/27/2008 | WO2008141443A1 Process for precious metal recovery from a sulphide ore or concentrate or other feed material |
| 11/27/2008 | WO2008141423A1 Processes for extracting aluminum and iron from aluminous ores |
| 11/27/2008 | WO2008021684A3 Cavitation process for products from precursor halides |
| 11/27/2008 | US20080289448 Hybrid Process Using Ion Exchange Resins in the Selective Recovery of Nickel and Cobalt from Leaching Effluents |
| 11/27/2008 | CA2683506A1 Process for precious metal recovery from a sulphide ore or concentrate or other feed material |
| 11/26/2008 | EP1994191A2 Method of extracting lithium |
| 11/26/2008 | EP1994190A1 Hematite precipitation at elevated temperature and pressure |
| 11/26/2008 | EP1994189A1 Process for the acid digestion of metal-containing compounds |
| 11/26/2008 | CN201154982Y Long-serve-life acid dipping shaft |
| 11/26/2008 | CN101311281A Green metallurgical process for integrated utilization of nickel laterite ore |
| 11/26/2008 | CN101311280A Process for recovering non-ferrous metal and noble metal from electronic waste material |
| 11/26/2008 | CN100436614C Methods to reduce hydrosulphide and arsine emissions during wet ore processing |
| 11/26/2008 | CN100436612C Tech. of recovering old silver platinum noble metals from antimony-smelting waste slag |
| 11/26/2008 | CN100436611C Method of purifying cerium by controlling pH |
| 11/26/2008 | CN100435899C Saponification of organic extractant |
| 11/25/2008 | US7455716 High temperature heap bioleaching process |
| 11/25/2008 | US7455715 Heap bioleaching process for the extraction of zinc |
| 11/25/2008 | CA2248474C Magnesium compounds from magnesium silicates |
| 11/20/2008 | WO2008139430A2 Drainage system for aerated heap leaching comprising perforated flat tubes |
| 11/20/2008 | WO2008139412A1 Producing a metal like zinc from sulphide ores by chloride leaching and electrowinning |
| 11/20/2008 | WO2008139023A1 Pump and a method for disassembling the pump |
| 11/20/2008 | WO2008138039A1 Nickel recovery from a high ferrous content laterite ore |
| 11/20/2008 | WO2008138038A1 LOW Eh LEACH WITH SULFUR RECYCLE |
| 11/20/2008 | US20080284068 Heap or Dump Leaching System Having an Air Distributor |
| 11/20/2008 | US20080282843 Process for Removal of the Catalytic Coating Material from Spent, Defective or Unused Metal Support Catalytic Converters |
| 11/19/2008 | EP1573078B1 Method for reducing emissions |
| 11/19/2008 | CN101307387A Process for extracting copper by wet method from copper-containing sulfidization ore |
| 11/19/2008 | CN101307383A Process for leaching out zinc in fluosolids roasting soot of zinc concentrate by bacteria |
| 11/19/2008 | CN100434550C Trentment method of tin copper slag |
| 11/19/2008 | CN100434548C Method of reclaiming silver from silver containing solution by poly m-phenylenediamine as adsorbent |
| 11/19/2008 | CN100434547C Method of reclaiming silver from silver containing solution by poly o-phenylenediamine as adsorbent |
| 11/19/2008 | CN100434546C Method of reclaiming silver from silver ion containing solution by polydiaminoanthraquinone as adsorbent |
| 11/18/2008 | US7452728 Metal ion separation from aqueous solutions using photoswitchable ionophores |
| 11/18/2008 | CA2302712C Process for the preparation of high grade synthetic rutile and pig iron |
| 11/18/2008 | CA2235429C The recovery of cobalt and/or copper from residues containing-same |
| 11/13/2008 | WO2008136542A1 Reactor for separating aluminium from multi-layer film materials |
| 11/13/2008 | CA2685371A1 Nickel-laterite process |
| 11/12/2008 | CN201148456Y Apparatus for continuous saponification preparing extractive agent rare-earth soap |
| 11/12/2008 | CN201148455Y Pressurized leaching air distribution apparatus |
| 11/12/2008 | CN101302584A Method for collecting nickel and cobalt from laterite-nickel ore lixivium by using sulfide precipitation |
| 11/12/2008 | CN101302581A Regenerative method of processing fluid and reclaiming method of metals contained therein |
| 11/11/2008 | US7449161 Production of lithium compounds directly from lithium containing brines |
| 11/11/2008 | US7449160 Process of solvent extraction of copper |
| 11/06/2008 | WO2008132830A1 Method for recovering metal |
| 11/06/2008 | US20080271572 Method for Recovering Rare Metals in Zinc Leaching Process |
| 11/05/2008 | CN101298640A Biological-chemical dipolar reactor leaching process |
| 11/05/2008 | CN101298639A Comprehensive utilization process of malachite ore |
| 11/05/2008 | CN101298638A Method for collecting nickel and cobalt from laterite-nickel ore lixivium |
| 11/05/2008 | CN100430525C Electrochemical powder decomposing method and eleclrotyzer adapted for same |
| 11/04/2008 | US7446077 Silicon oxides, alumina, molecular sieves having surface area of four hundred square meters per gram; surface acidity of less than two tenths of a micromole per square meter; transition metal phase dispersed through matrix is selective to reversible adsorption of sulfur |
| 10/30/2008 | US20080267810 Apparatus and process for making high purity nickel |
| 10/30/2008 | US20080264208 Liquid injection of VCI4 into superheated TiCI4 for the production of Ti-V alloy powder |
| 10/29/2008 | EP1985590A1 The method of treatment of iron-containing waterworks sludge and a mixture prepared by this method |
| 10/29/2008 | EP1984532A1 Aqueous solutions containing metal cyanide for cyanide leaching for the winning of gold and silver |
| 10/29/2008 | EP1984531A1 Method for recovering gold |
| 10/29/2008 | EP1984529A1 Method for recovering copper from a copper sulphide ore |
| 10/29/2008 | EP1984528A1 Improved base metal recovery process from heap leaching |
| 10/29/2008 | CN201141038Y Gold extraction device using carbon slurry method |
| 10/29/2008 | CN201141037Y Microvesicle oxidization gold extraction leaching tank |
| 10/29/2008 | CN101294245A Technique for extraction separation of quadravalence cerium, thorium and cerium less tervalence rare earth from sulphuric acid rare earth solution |
| 10/29/2008 | CN101294244A Technique for extraction separation of quadravalence cerium, thorium, fluorine and cerium less tervalence rare earth from sulphuric acid rare earth solution |
| 10/29/2008 | CN100429325C Method of eliminating and reclaiming metal form petroleum |
| 10/28/2008 | CA2417413C Method for recovering copper from sulfide ore materials using high temperature pressure leaching, solvent extraction and electrowinning |
| 10/23/2008 | WO2008124904A1 A process for nickel and cobalt recovery from an eluate by using solvent extraction, and nickel- or cobalt- bearing product obtained by said process |
| 10/23/2008 | WO2008054648A3 Method for producing sulfuric acid |
| 10/22/2008 | CN101292051A Method and apparatus for the recovery of refractory mineral ores |
| 10/22/2008 | CN101289712A Process for recovering indium from indium-containing material |
| 10/22/2008 | CN101289707A Copper recovery form etching waste liquid of circuit board |
| 10/22/2008 | CN101289706A Process for preparing electrolytic zinc form treated zinc oxide ore or zinc oxide secondary resource |
| 10/22/2008 | CN101289705A Process for abstracting vanadium from iron-smelting waste slag of vanadium ¿Ccontaining iron ore |