| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 01/29/2014 | CN103540740A Clean separating method of Baotou rare-earth ore concentrate |
| 01/29/2014 | CN102888511B Iron removal method of hydrometallurgical acidic leaching solution |
| 01/29/2014 | CN102776370B Technological method for leaching manganese ore with high spent acid |
| 01/29/2014 | CN102732718B Method for low temperature treatment of sulfide ore by using air and sulfur dioxide mixed gas |
| 01/29/2014 | CN102534255B Wet process-pyrogenic process joint smelting process for antimony or bismuth |
| 01/29/2014 | CN102226236B Hydrometallurgical method for comprehensively recycling components in lateritic nickel ore as products |
| 01/29/2014 | CN101855374B High temperature leaching process |
| 01/28/2014 | CA2803904C Method for dispersing and aggregating components of mineral slurries and high-molecular weight multivalent anionic polymers for clay aggregation |
| 01/28/2014 | CA2593474C Reduction of lime consumption when treating refractory gold ores or concentrates |
| 01/23/2014 | WO2014014380A1 Method for the acid treatment of red mud |
| 01/23/2014 | WO2014014379A1 Method for producing alumina |
| 01/23/2014 | WO2014013929A1 Method for recovering rare earth from rare earth element-containing alloy |
| 01/23/2014 | WO2014013092A1 Hydrometallurgical method for recovering zinc in a sulphuric medium from zinc sulphide concentrates having a high iron content |
| 01/23/2014 | US20140023572 Method of ore processing |
| 01/23/2014 | US20140023570 Modified poly (styrene-co-maleic anhydride) and uses thereof |
| 01/23/2014 | US20140020510 Recovery of base metals from sulphide ores and concentrates |
| 01/22/2014 | EP2686458A1 Processes for recovering rare earth elements from aluminum-bearing materials |
| 01/22/2014 | CN203403143U Deironing device used in zinc hydrometallurgy production |
| 01/22/2014 | CN103534367A Processes for recovering rare earth elements from aluminum-bearing materials |
| 01/22/2014 | CN103526233A Method for high-efficiency separation of palladium from silver electrolyte |
| 01/22/2014 | CN103526103A Smelting method of garnierite type lateritic nickel ore and product of garnierite type lateritic nickel ore |
| 01/22/2014 | CN103526058A Technique for preparing high-purity praseodymium from industrial praseodymium raw material |
| 01/22/2014 | CN103526057A Method of comprehensive recovery of rare precious metals in rare earth smelting slag |
| 01/22/2014 | CN103526056A Wet-method atmospheric oxidation method of cerium in rare earth hydroxides |
| 01/22/2014 | CN103526055A Process for grouping quasi-fractionated extraction of neodymium/samarium through bastnaesite |
| 01/22/2014 | CN103526051A Method for separating iron, vanadium and titanium from schreyerite |
| 01/22/2014 | CN103526048A Method for separating lead and antimony from jamesonite |
| 01/22/2014 | CN103526047A Smelting method of limonite type lateritic nickel ore and product of lateritic nickel ore |
| 01/22/2014 | CN103526044A Zinc hydrometallurgy process favorable for floatation silver and adopted precipitating silver mixture |
| 01/22/2014 | CN103526041A Method for reducing gold in chlorination selenium-dipping solution with reducing agent |
| 01/22/2014 | CN103526040A Process for removing base metals in platinum group metal containing material |
| 01/22/2014 | CN103526031A Recovery method for SCR waste flue gas denitration catalyst |
| 01/22/2014 | CN103526028A Precursor waste dissolving and recovering method |
| 01/22/2014 | CN103526024A Clean and environment-friendly comprehensive novel recycling process by virtue of high-indium high-iron zinc concentrate |
| 01/22/2014 | CN103526023A Method for regenerating scrapped palladium extraction agent and recycling platinum group metal |
| 01/22/2014 | CN103526022A Preparation method of lithium saponification organic phase of acidic extractant |
| 01/22/2014 | CN103526021A Cleansing and cobalt-removing method for zinc smelting leachate and scavenging agent used therein |
| 01/22/2014 | CN103526020A Method for lixiviating manganese ore containing manganous silicate |
| 01/22/2014 | CN103526019A Method for comprehensive recycle of vanadium, selenium and silver from multi-metal associated vanadium ore |
| 01/22/2014 | CN103526018A Method for producing electrolytic manganese from manganese carbonate ore with low manganese content and high iron content |
| 01/22/2014 | CN103526017A Extraction method of valuable elements from acid mud produced in sulfuric acid production by copper smelting flue gas |
| 01/22/2014 | CN103526016A Method for recovering lead-containing raw material by using wet process |
| 01/22/2014 | CN103526015A Leaching method for nickel-containing limonite |
| 01/22/2014 | CN103526014A Method for leaching weathering crust eluvial type rare earth ore with aluminum inhibition |
| 01/22/2014 | CN103526013A Comprehensive recovery method of complex molybdenum sulphide ores |
| 01/22/2014 | CN103526012A Spraying tube for multiple mixed media |
| 01/22/2014 | CN103523800A Method for recovering excess sodium hydroxide in tungsten smelting crude sodium tungstate solution |
| 01/22/2014 | CN102747233B Sulfur concentrate recovery process in pre-cavitation and sulfur flotation of zinc oxidative pressure leaching residue |
| 01/22/2014 | CN102732727B Method for extracting vanadium from high vanadium-sodium-aluminum-silicon slag |
| 01/22/2014 | CN102534213B Method for carrying out normalized treatment on P204 extraction poisoning |
| 01/22/2014 | CN102292133B Method and arrangement for separating two solutions mixed in dispersion into two solution phases in a liquid-liquid extraction separation cell |
| 01/16/2014 | WO2014009928A1 Hydrometallurgical treatment process for extraction of metals from concentrates |
| 01/16/2014 | WO2014009769A1 Method of processing an iron ore containing phosphorus, the iron ore having a gangue |
| 01/16/2014 | WO2014008586A1 Processes for preparing titanium oxide and various other products |
| 01/16/2014 | WO2014008540A1 Method for the recovery of nickel from sulphide ores |
| 01/16/2014 | US20140017152 Method for treating arsenic containing materials |
| 01/16/2014 | CA2821752A1 Hydrometallurgical method for recovery of zinc in sulphuric medium starting from sulphidic zinc concentrates with high iron content |
| 01/15/2014 | CN203393210U Agitation leaching equipment with constant temperature and constant pH (Potential of Hydrogen) value for leaching vanadium from stone coal |
| 01/15/2014 | CN203393206U Circular copper removal treatment device for copper anode slime |
| 01/15/2014 | CN203393202U Device for simultaneous deamination, defluorination and dechlorination by virtue of ammonia leaching zinc oxide liquid |
| 01/15/2014 | CN203393201U Accurate metering and conveying system of manganese mineral powder |
| 01/15/2014 | CN103509955A Two ore combined process for treatment of laterite nickel ore and pyrolusite |
| 01/15/2014 | CN103509952A Technology for recovering rare earth from permanent magnet waste of electronic waste |
| 01/15/2014 | CN103509948A Method for enriching germanium from zinc hydrometallurgy leaching solution |
| 01/15/2014 | CN103509947A Solvent extraction separation method for extracting and separating precious metal from hydrochloric acid solution |
| 01/15/2014 | CN103509946A Method for vulcanizing low-grade oxidized nickel ore with microbiological method |
| 01/15/2014 | CN103509945A Method for recovering arsenic from arsenic-enriched plant |
| 01/15/2014 | CN103509944A Method for in-situ leaching of rare-earth ores from weathering crust elution-deposited rare earth ore |
| 01/15/2014 | CN103509943A Method for recovering rare earth from weathering crust elution-deposited rare earth ore residual liquid |
| 01/15/2014 | CN103509935A Production process for improving iron content and reducing phosphorus content in low-grade high-phosphorus oolitic hematite |
| 01/15/2014 | CN103508477A Process for complex processing of bauxite |
| 01/15/2014 | CN103508460A Method for cold hydrochemical decomposition of sodium hydrogen aluminosilicate |
| 01/15/2014 | CN103233118B Stacking and leaching method of tuff type cuprite |
| 01/15/2014 | CN103194617B Method for strengthening agitation leaching of cuprite red copper ore type copper oxide |
| 01/15/2014 | CN102978395B Method for separating and enriching Cu and Co from sulfate diluted solution containing Co |
| 01/15/2014 | CN102758080B Method for microwave roasting and non-cyanogen gold leaching of sulfur-bearing gold mineral |
| 01/15/2014 | CN102634677B Method for recovering cobalt in cobalt-rich matte leaching liquid |
| 01/15/2014 | CN102614834B Method for adsorbing and recovering heavy metals of lead and copper by persimmon tannin-containing metal adsorbent |
| 01/15/2014 | CN102503003B Photoreduction/liquid-liquid-liquid three-phase extraction coupled method for removing and recycling chromium |
| 01/15/2014 | CN102329964B Method for separating and recovering vanadium and chromium from vanadium-chromium reduced waste residue |
| 01/14/2014 | US8628600 Method for extracting hexavalent chromium in a polymer material |
| 01/09/2014 | WO2014006196A1 Method for reducing hexavalent chromium in oxidic solids |
| 01/09/2014 | WO2014005889A1 Method for reprocessing an emulsion formed during hydrometallurgical recovery of a metal |
| 01/09/2014 | CA2876564A1 Method for reprocessing an emulsion formed during hydrometallurgical recovery of a metal |
| 01/08/2014 | EP2682486A1 Cobalt extraction method |
| 01/08/2014 | EP2682370A1 Method for reducing hexavalent chromium in oxidic solids |
| 01/08/2014 | EP2681342A2 Metal separation method |
| 01/08/2014 | CN103498171A Environment-friendly energy-saving normal pressure and temperature wet preparation process for refined bismuth |
| 01/08/2014 | CN103498169A Preparation method for reducing sulfur impurities in electrolytic nickel |
| 01/08/2014 | CN103498048A Method for removing chromium in vanadium-containing leachate, and method for preparing high-purity vanadium oxide |
| 01/08/2014 | CN103498047A Process for extracting vanadium through alkaline leaching conducted after stone coal oxidizing roasting |
| 01/08/2014 | CN102864302B Method for preventing bonding failure of float level meter in pressure leaching kettle |
| 01/08/2014 | CN102851511B Method for reducing contents of zinc and copper in smelting ash acid leaching residues |
| 01/08/2014 | CN102747224B Process for recovering organic matters from copper extraction floccules |
| 01/08/2014 | CN102660675B Cyanide leaching device for gold ore |
| 01/07/2014 | US8623269 Hopper and reduction device using the same |
| 01/07/2014 | US8623113 Metal component collection agent and method for collecting metal component |
| 01/07/2014 | CA2785299C Method for upgrading combustion ash |
| 01/07/2014 | CA2597354C Method for the treatment of copper-bearing materials |
| 01/03/2014 | WO2014001625A1 Method of manufacturing a solvent extraction settler and solvent extraction settler |