| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 03/02/2011 | CN101589164B Method and apparatus for collection of indium from etching waste solution containing indium and ferric chloride |
| 03/02/2011 | CN101469374B Method and equipment for extracting medical strontium-89 from homogenous water solution nuclear reactor gas loop |
| 03/01/2011 | US7897028 regeneration of metal sulfides, polysulfides or hydrosulfides, by reacting with halogens to liberate and removing sulfur, then then electrolyzing the halogenated products to separate the halogen from the metals; reuse |
| 02/24/2011 | WO2011021696A1 Palladium ion adsorbent and method for separating and recovering palladium using same |
| 02/24/2011 | WO2011020181A1 Selective leach recovery of minerals from composite ores |
| 02/24/2011 | US20110045272 Purification of metal nanostructures for improved haze in transparent conductors made from the same |
| 02/24/2011 | US20110042867 Hopper and reduction device using the same |
| 02/24/2011 | US20110041654 Method of heap or dump leaching of copper from copper sulfide ore |
| 02/24/2011 | DE10296846B4 Verfahren zum selektiven Entfernen von Molybdän aus flüssigen Mischungen, die dieses zusammen mit Vanadium enthalten A process for selectively removing molybdenum from liquid mixtures containing this together with vanadium |
| 02/24/2011 | CA2770367A1 Selective leach recovery of minerals from composite ores |
| 02/23/2011 | EP2285994A1 Recovery of rhenium |
| 02/23/2011 | EP2285993A1 Saprolite neutralisation of heap leach process |
| 02/23/2011 | EP2285455A2 Method for treating an asbestos solid |
| 02/23/2011 | CN101981233A Process for recovery of valuable metals from scrap IZO |
| 02/23/2011 | CN101979680A Method for removing aluminum from rare-earth feed liquid |
| 02/23/2011 | CN101979679A Method for treating chromite by sulfuric acid leaching |
| 02/23/2011 | CN101979335A Process for recycling trace rare earth produced by treatment of waste residues and waste water of rare earth mine |
| 02/22/2011 | CA2618326C Method for manufacturing scorodite |
| 02/19/2011 | CA2676273A1 Leach recovery of minerals from composite carbonate/sulfide ores |
| 02/17/2011 | WO2011018550A1 Method for leaching of ore containing copper and cobalt |
| 02/16/2011 | EP1786757B1 Particular calixarenes and use thereof |
| 02/16/2011 | CN101978080A Process for atmospheric leaching of laterite ores using hypersaline leach solution |
| 02/16/2011 | CN101977689A Picolylamine resins |
| 02/16/2011 | CN101974691A Method for recovering cobalt in cobalt-containing waste residues from zinc smelting |
| 02/16/2011 | CN101974689A Method for processing material containing copper |
| 02/16/2011 | CN101974688A Method for separating chromium ions and iron ions in multicomponent solution |
| 02/16/2011 | CN101974687A Extraction process for preparing electronic-grade cobalt sulfate from cobalt-containing waste material |
| 02/16/2011 | CN101974686A Back extraction solution prepared by extraction separation of washing organic matter of saponification wastewater by recycling rare earth and solution washing method |
| 02/16/2011 | CN101974685A Process for extracting nickel-cobalt from laterite by using resin-in-pulp adsorption technology |
| 02/16/2011 | CN101974684A Process for removing impurities from lepidolite leaching solution |
| 02/16/2011 | CN101974683A Method for producing middle supernatant solution by carrying out two-step pressure acid leaching on high-iron zinc sulfide concentrate |
| 02/16/2011 | CN101974682A Method for extracting electrolytic zinc from oxide material containing less than 20% of zinc by using waste acid in titanium white plant |
| 02/16/2011 | CN101974678A Method for extracting lithium and other alkali metal elements from lepidolite mineral |
| 02/16/2011 | CN101974656A Method for preparing iron ingots and coproducing cadmium hydroxide and copper hydroxide from mixed iron slag by using arc process |
| 02/16/2011 | CN101974461A Bioleaching strain breeding method for copper ore agitation leaching |
| 02/16/2011 | CN101709382B Recovery and comprehensive treatment process of valuable metals in zinciferous materials |
| 02/16/2011 | CN101709377B Purifying and impurity-removing method of leaching solution containing vanadium |
| 02/16/2011 | CN101660044B Novel molybdenum calcining processing technology |
| 02/16/2011 | CN101660043B Classified stacking method of oxidized mine with high content of mud |
| 02/16/2011 | CN101608258B Method for industrially extracting cobalt, copper and iron by taking cobalt-copper alloy as raw material |
| 02/16/2011 | CN101555550B Method for recycling lead-tin in silver separating residue of copper anode slime of circuit board |
| 02/15/2011 | US7887617 Method and apparatus for ore processing |
| 02/10/2011 | WO2011015991A2 Process for the recovery of metals from an iron-containing ore |
| 02/10/2011 | WO2011014930A1 Method for leaching cobalt from oxidised cobalt ores |
| 02/10/2011 | US20110030508 Process for Metal Seperation Using Resin-in-Pulp or Resin-in-Solution Processes |
| 02/10/2011 | CA2767034A1 Method for leaching cobalt from oxidised cobalt ores |
| 02/09/2011 | CN101967562A Method for recovering germanium from silicon-germanium alloy by wet method |
| 02/09/2011 | CN101967560A Method for preparing saponifier by recycled wastewater of rare earth carbonate precipitation |
| 02/09/2011 | CN101967559A Self recycling method of waste water in rare earth carbonate precipitation |
| 02/09/2011 | CN101967558A Method for preparing saponifier by directly recycling saponification wastewater produced by extraction and separation of rare earth |
| 02/09/2011 | CN101967557A Method for recycling carbonate rare-earth deposited wastewater to extraction and separation process for washing organic substances and preparing re-extraction solution and lotion |
| 02/09/2011 | CN101967556A Efficient air-oxidizing de-ironing device |
| 02/09/2011 | CN101967555A Method for dipping and decomposing bastnaesite after activation |
| 02/09/2011 | CN101565778B Method for depositing and separating tungsten and molybdenum in tungstate/molybdate mixed solution |
| 02/09/2011 | CN101525693B Method for vulcanization, reducing oxidation and enrichment of low-grade material containing arsenic, indium and germanium |
| 02/09/2011 | CN101407862B Method for previously removing copper from copper-containing solution |
| 02/09/2011 | CN101125719B Method for reclaiming hydrochloric acid and metal copper from printed circuit acidic etching waste liquid |
| 02/08/2011 | CA2429889C Method for the hydrolytic precitpitation of iron |
| 02/03/2011 | WO2011012579A1 Increase in the separation factor between americium and curium and/or between lanthanides in a liquid-liquid extraction process |
| 02/03/2011 | WO2011012563A1 Method for selectively recovering americium from an aqueous nitric phase |
| 02/02/2011 | EP2279272A1 Method for the treatment of mixed hydroxide product produced in a metal extraction process |
| 02/02/2011 | CN101962713A Continuous ion exchange device and method for extracting gallium from Bayer mother solution |
| 02/02/2011 | CN101962712A Method for leaching valuable metals in waste circuit board by acidophilic bacteria mixed culture |
| 02/02/2011 | CN101961569A High-efficient metavanadate environment-friendly filtering method and metavanadate box type undercurrent washing press used by the same |
| 02/02/2011 | CN101748275B Preparation method of low-thorium lutetium oxide |
| 02/02/2011 | CN101705365B Production method for oxygen pressure leaching platinum group metals from platinum group metal waste materials containing sulphur |
| 02/02/2011 | CN101597698B Method for extracting vanadium by stone coal through acid leaching |
| 02/02/2011 | CN101560608B Nitrogen-free wet-process refining method for gold-bearing materials |
| 02/02/2011 | CN101151382B Modification of copper/iron selectivity in copper solvent extraction systems |
| 02/01/2011 | US7879132 using as a material a powder containing metal oxides and containing alkali metals and halogen elements, mixing such material with water to produce a slurry, then dehydrating and charging the dehydrated material into a rotary hearth type reduction furnace for reduction |
| 02/01/2011 | CA2475833C Procedure to leach copper concentrates, under pressure and at ambient temperature, by forming a colloidal mass in a sulfate - chloride medium |
| 01/27/2011 | WO2011010289A2 Leaching process for recovery of precious metals |
| 01/27/2011 | US20110017016 System and method for cooling and removing iron from a hearth |
| 01/27/2011 | CA2768726A1 Leaching process for recovery of precious metals |
| 01/26/2011 | EP2276865A1 Selectively leaching cobalt from lateritic ores |
| 01/26/2011 | EP2276864A1 System for decreasing amount of organic solution in the liquid-liquid extraction process |
| 01/26/2011 | CN201722416U Purification device for producing electrolytic manganese by two-ore method |
| 01/26/2011 | CN201722415U Concrete material leaching tank |
| 01/26/2011 | CN101956085A Method of extracting GaCl from carbonaceous mudstone |
| 01/26/2011 | CN101956081A Technology for strengthening nickel cobalt of ammonia leaching from low-grade nickel laterite |
| 01/26/2011 | CN101956078A Method for separating and recycling rare-earth elements from molten salt electrolysis wastes of rare-earth metals |
| 01/26/2011 | CN101956074A Method for removing tin in zinc and alkali solution |
| 01/26/2011 | CN101956073A Process for recycling gold and silver refined waste liquid |
| 01/26/2011 | CN101956072A Method for arsenic removal and phosphorous removal out of iron-containing materials |
| 01/26/2011 | CN101956071A Biological metallurgy mineral leaching microorganism combined bacterium fluid for copper ore and method for recycling metallic copper |
| 01/26/2011 | CN101956070A Recovery method of molybdenum concentrates |
| 01/26/2011 | CN101956069A Method for reducing and leaching manganese from pyrolusite in sulfuric acid solution by using sludge |
| 01/26/2011 | CN101709376B Method for purifying alkaline vanadium leachate |
| 01/26/2011 | CN101338370B Gold-extracting process by thiourea carbon-in-pulp method |
| 01/25/2011 | CA2425355C Process for regeneration of acid halide solutions |
| 01/20/2011 | WO2011006223A1 Process of recovery of base metals from oxide ores |
| 01/20/2011 | CA2768021A1 Process of recovery of base metals from oxide ores |
| 01/19/2011 | EP2274452A2 Method and apparatus for the microbiological removal of mercury from contaminated materials |
| 01/19/2011 | EP2274239A1 A process for chlorinating resources containing recoverable metals |
| 01/19/2011 | CN1972870B Process for complete utilisation of olivine constituents |
| 01/19/2011 | CN101948956A Method for self-heating agitation leaching in ore hydrometallurgy |
| 01/19/2011 | CN101948954A Gold recovery technology for processing arsenious S-C gangue coated gold concentrate by microwave fluidized roasting |
| 01/19/2011 | CN101709390B On-line circulation method for process for extracting vanadium from stone coal |
| 01/19/2011 | CN101684525B Method for extracting vanadium from vanadium-containing ferrophosphor |
| 01/19/2011 | CN101591732B Process method using oxygen as oxidant in leaching process of manganese ore |