| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 08/29/2012 | CN101775490B Gold extracting method by thiosulfate using polyamine compoud as additive |
| 08/28/2012 | US8252086 Extraction of metals from sulphide minerals |
| 08/28/2012 | CA2745933C Method for thiosulfate leaching of precious metal-containing materials |
| 08/23/2012 | WO2012111542A1 Method for collection of ruthenium or ruthenium compound |
| 08/23/2012 | WO2012109705A1 Method and system for extraction of uranium using an ion-exchange resin |
| 08/23/2012 | US20120211439 Scavenger supports and the use thereof in a process for the extraction of metals |
| 08/23/2012 | CA2830478A1 Method and system for extraction of uranium using an ion-exchange resin |
| 08/22/2012 | CN202390507U Acid adding device capable of controlling PH value accurately and automatically |
| 08/22/2012 | CN202387248U Novel box type extraction tank for industrial application |
| 08/22/2012 | CN102648298A Method for the removal of chloride from zinc sulphate solution |
| 08/22/2012 | CN102643995A Method for separating and recovering copper from waste electronic appliances |
| 08/22/2012 | CN102643993A Balance control technique for efficient extraction of electro-deposited copper and impurities from complex solution |
| 08/22/2012 | CN102643992A Method for recovering rare-earth waste material |
| 08/22/2012 | CN102643990A Method for removing trace Cu in high-purity Ni by chelate resin |
| 08/22/2012 | CN102643989A Method for purifying and deironing crystallites of iron vitriol of bioleaching liquid |
| 08/22/2012 | CN102643988A Method for leaching metallic copper from waste printed circuit board by using ionic liquid |
| 08/22/2012 | CN102643987A Method for preparing rare earth by reducing ammonia nitrogen oxygen demand (COD) and adjusting potential of hydrogen (pH) value from rare earth mine leach liquor |
| 08/22/2012 | CN102643986A Method for producing electrolytic manganese by taking pyrolusite as raw material through wet method reduction leaching |
| 08/22/2012 | CN102643985A Method for extracting valuable metals from high-iron bauxite with step-by-step acid leaching |
| 08/22/2012 | CN102643984A Integrated technique for hot aggregate conveying and high-temperature acid leaching in treatment process of complex polymetallic refractory gold concentrate |
| 08/22/2012 | CN102643983A Stage-by-stage dump leaching technology for low-grade mixed copper ore |
| 08/22/2012 | CN102643982A Leaching tank coil |
| 08/22/2012 | CN102643981A Leaching tank lid |
| 08/22/2012 | CN102643769A Extreme acidophilus thiobacillus and application of same in copper pyrite infusion |
| 08/22/2012 | CN102642857A Process method for producing metal aluminium by high-alumina fly ash |
| 08/22/2012 | CN102115813B Comprehensive utilization method for low-grade magnesite |
| 08/22/2012 | CN102071316B Three-component separation method of multi-component rare earth |
| 08/22/2012 | CN101993835B Arsenic-resistant bacteria and method for performing oxidation treatment on high-arsenic gold concentrate by using same |
| 08/22/2012 | CN101876004B Method for recycling rare metal molybdenum from mineral dressing tailings of molybdenum |
| 08/22/2012 | CN101831544B Method for separating manganese and silver of manganese-silver ore and extracting manganese sulfate by purifying manganese dipped solution |
| 08/22/2012 | CN101760627B Method for recovering noble metal in waste noble metal catalysts |
| 08/16/2012 | WO2012107116A1 Chemical method for removing copper sulphide (cu2s) deposited onto cellulose -based material in transformer using a copper complexant |
| 08/16/2012 | WO2012088212A3 Protective system and chemical agents for leaching polycrystalline diamond elements and for recovery of leached materials |
| 08/15/2012 | EP2486161A1 Hydrometalurgical process and apparatus for recovering metals from waste material |
| 08/15/2012 | EP2038437B1 Hybrid process using ion exchange resins in the selective recovery of nickel and cobalt from leaching effluents |
| 08/15/2012 | EP1866447B1 Heap leaching of sulphide ores |
| 08/15/2012 | CN202380060U Saturation re-back extraction system |
| 08/15/2012 | CN202380059U Middle leaching barrel for electrolytic zinc |
| 08/15/2012 | CN202380058U Rare earth settling tank using vacuum suction filter |
| 08/15/2012 | CN102639729A Method for extracting rare earth elements from phosphogypsum |
| 08/15/2012 | CN102639727A High efficiency right angle gearbox |
| 08/15/2012 | CN102634819A Method for preparing electrolytic manganese/electrolytic manganese dioxide through leaching manganese oxide by sulfur dioxide |
| 08/15/2012 | CN102634680A Method for comprehensively recovering magnesium during process of extracting gold from magnesium-containing gold ore pile |
| 08/15/2012 | CN102634677A Method for recovering cobalt in cobalt-rich matte leaching liquid |
| 08/15/2012 | CN102634673A Method for deeply removing iron ions from chromium-containing waste residue pickle liquor |
| 08/15/2012 | CN102634668A Roasting-free evaporation-free method for producing cupric sulfate from zinc hydrometallurgy acid-wash copper dross |
| 08/15/2012 | CN102634666A Method for dearsenicating fresh high-arsenium lead anode slime under oxygen pressure |
| 08/15/2012 | CN102634664A Treatment method of copper clad aluminum lead wire wastes |
| 08/15/2012 | CN102634663A Enrichment and separation technology of low-grade material containing silver, lead, copper and bismuth |
| 08/15/2012 | CN102634662A Method for low-temperature deironing by using mixed gas of air and sulfur dioxide (SO2) |
| 08/15/2012 | CN102634661A Application of additive in enhancing oxidization of arsenical gold mineral by bacteria |
| 08/15/2012 | CN102634660A Leaching method for nickel carbonate by hydrochloric acid |
| 08/15/2012 | CN102634659A Process for recycling gallium from gallium and germanium contained concentrate |
| 08/15/2012 | CN102634658A Leaching method for associated copper, molybdenum and nickel in coal mine containing scherbinaite |
| 08/15/2012 | CN102634657A Chlorination leaching method of nickel unclassified stores |
| 08/15/2012 | CN102634656A Method for preparing electrolytic manganese/electrolytic manganese dioxide by cyclically leaching manganese oxide with sulfur and calcium |
| 08/15/2012 | CN102634655A Chlorination leaching method of laterite sulfurized precipitate |
| 08/15/2012 | CN102631897A Method for preparing lithium adsorbent resin |
| 08/15/2012 | CN102181649B Method for recovering germanium from germanium extraction residues |
| 08/15/2012 | CN102049238B Ion sieve for selectively extracting lithium and application thereof |
| 08/15/2012 | CN102049237B Iron phosphate ion sieve for selectively extracting Li and application thereof |
| 08/15/2012 | CN101994007B Method for removing sulfur from waste lead-acid storage battery gypsum mud by using magnesium chloride |
| 08/15/2012 | CN101994005B Method for purifying zinc sulfate solution and removing cobalt by using arsenic ash lixivium |
| 08/15/2012 | CN101979680B Method for removing aluminum from rare-earth feed liquid |
| 08/15/2012 | CN101629239B Processing method of third phase of copper extraction system |
| 08/14/2012 | CA2599174C Method for leaching gold |
| 08/14/2012 | CA2517693C Heap leach process using elemental sulphur to generate heat |
| 08/09/2012 | WO2012104717A1 Apparatus and method for conducting microbiological processes |
| 08/09/2012 | WO2012104246A1 Process for separating at least one platinoid element from an acidic aqueous solution comprising, besides this platinoid element, one or more other chemical elements |
| 08/09/2012 | WO2012103617A1 Direct purification of a nickel laterite leaching effluent |
| 08/09/2012 | WO2012065361A4 Method and device for separating lithium from magnesium and enriching lithium in salt lake brine |
| 08/09/2012 | DE102011011532B3 Verfahren zum Ablösen von Beschichtungen von Stahlschrotten Method for stripping coatings from steel scrap |
| 08/09/2012 | CA2826486A1 Apparatus and method for conducting microbiological processes |
| 08/09/2012 | CA2826170A1 Direct purification of a nickel laterite leaching effluent |
| 08/08/2012 | EP2483458A1 Acidic dezincification |
| 08/08/2012 | EP2240614B1 Process for the recovery of precious metals from used and/or defective catalytic carriers |
| 08/08/2012 | EP2130947B1 Method of recovering valuable metal from scrap containing conductive oxide |
| 08/08/2012 | CN202369624U Microbiological leaching tailings heavy metal reactor |
| 08/08/2012 | CN102628111A Method for extracting rhenium from rhenium-rich concentrates |
| 08/08/2012 | CN102628109A Complexing germanium depositing agent and application in germanium enriching in germanium-containing ore solution thereof |
| 08/08/2012 | CN102628106A Technology for recycling manganese and lead from electrolytic manganese anode slag |
| 08/08/2012 | CN102628105A Method for comprehensively recycling and using baric waste slag in refined aluminum production process |
| 08/08/2012 | CN102628104A Production process for extracting high-purity rare earth and zirconium compound from solid waste |
| 08/08/2012 | CN102628102A Continuous ionic adsorption and exchange device system |
| 08/08/2012 | CN102628101A Method of extracting vanadium from acid leaching solution of stone coal vanadium ore |
| 08/08/2012 | CN102628100A Device and method for extracting zinc through acid leaching by using acid cyclically |
| 08/08/2012 | CN102108440B Method for extracting molybdenum from nickel-molybdenum mineral alkali leaching solution |
| 08/08/2012 | CN102061392B Method for extracting scandium from modified red mud by using composite extractant |
| 08/08/2012 | CN101906537B Process for decomposing cobalt alloy |
| 08/08/2012 | CN101792728B Method for leaching metal from metallic ores and special strain in same |
| 08/08/2012 | CN101506394B Production of metallic nickel with low iron content |
| 08/07/2012 | CA2568796C Method and apparatus for purification of slightly water-soluble organic solution from aqueous entrainment |
| 08/07/2012 | CA2568794C Method and apparatus for purification of an aqueous solution from droplets of extraction solution |
| 08/07/2012 | CA2522074C Recovery of platinum group metals |
| 08/07/2012 | CA2454854C Method of recovering sulfur from leaching residue under atmospheric pressure |
| 08/07/2012 | CA2382618C Improved bacterial oxidation of sulphide ores and concentrates |
| 08/02/2012 | WO2012102384A1 Valuable metal leaching method, and valuable metal collection method employing the leaching method |
| 08/02/2012 | WO2012102265A1 Process for production of ore slurry |
| 08/02/2012 | WO2012100293A1 Improved method of ore processing |
| 08/02/2012 | WO2012078772A3 Continuous elution process and system thereof |