| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 10/15/2009 | WO2009124393A1 Electrochemical process for the recovery of metallic iron and sulfuric acid values from iron-rich sulfate wastes, mining residues and pickling liquors |
| 10/15/2009 | WO2009124387A1 Process for decontaminating preservative-treated wood and recovering metals from leachates |
| 10/15/2009 | WO2009124355A1 Leaching process |
| 10/15/2009 | WO2009106734A8 Multi-column sequenced separation process for separating an ionic metal derivative |
| 10/15/2009 | WO2009067128A3 Liquid-liquid extraction method and apparatus |
| 10/15/2009 | US20090255371 Method for obtaining valuable products |
| 10/15/2009 | CA2720992A1 Leaching process |
| 10/15/2009 | CA2720630A1 Process for decontaminating preservative-treated wood and recovering metals from leachates |
| 10/15/2009 | CA2717887A1 Electrochemical process for the recovery of metallic iron and sulfuric acid values from iron-rich sulfate wastes, mining residues and pickling liquors |
| 10/14/2009 | EP1567684B2 Method for eliminating mercury from solutions contaminated by the same |
| 10/14/2009 | CN201326002Y Calcine feeding delivery device |
| 10/14/2009 | CN201325998Y Puddler |
| 10/14/2009 | CN201324625Y Underflow-type multi-compartment pressure reactor |
| 10/14/2009 | CN101558176A Accelerated heat generation in heap bioleaching |
| 10/14/2009 | CN101558175A Cavitation process for products from precursor halides |
| 10/14/2009 | CN101555556A Method for comprehensively utilizing laterite-type nickel ore |
| 10/14/2009 | CN101555551A Method for comprehensively recovering Fe, Cu and Si from copper smelting slag |
| 10/14/2009 | CN101555550A Method for recycling lead-tin in silver separating residue of copper anode slime of circuit board |
| 10/14/2009 | CN101555548A Method for improving bioleaching effect of municipal solid waste incineration flying ash |
| 10/14/2009 | CN101555547A Passivant for inhibiting iron and aluminium impurity acid split leaching of phosphorite and operation method thereof |
| 10/14/2009 | CN100549193C Method for extracting metal scandium and titanium from red mud |
| 10/14/2009 | CN100549190C Method of reclaiming platinum from selenium-containing waste liquid using hydrazine |
| 10/13/2009 | US7601314 Reductive ammoniacal leaching of nickel and cobalt bearing materials |
| 10/13/2009 | US7601313 Acid/microwave leaching of titanium ore and then flotation to recover titanium oxide concentrate |
| 10/08/2009 | US20090252662 Process for purifying inorganic materials |
| 10/07/2009 | CN101553585A A sulfate process |
| 10/07/2009 | CN101550493A Microwave-assisting method for fast leaching vanadium in stone coal vanadium ore |
| 10/07/2009 | CN101550492A Method for extracting vanadium pentoxide from vanadium-containing ferro phosphorus |
| 10/07/2009 | CN101550491A Method for extracting nickel or cobalt from nickel ore with chloridizing roasting-leaching method |
| 10/07/2009 | CN101550490A Method of extracting nickel from ni-mo ore metallurgical slag |
| 10/07/2009 | CN101550488A Method of preparing high pure cathode copper by using PCB acid chlorine copper etching solution sewage |
| 10/07/2009 | CN101550486A Method for separating and recovering gold or silver by inner-coupling liquid membrane |
| 10/07/2009 | CN101550485A Oxidative pressure acid leaching method for processing purified waste residue in zinc hydrometallurgy process |
| 10/07/2009 | CN100547094C Method for recovery and utilization of acid waste liquid generated in waste lead acid accumulator lead -recovery process |
| 10/07/2009 | CN100547093C Demercuration method for mercury-containing gold-carrying active carbon |
| 10/07/2009 | CN100547092C Method for recovering valuable metal in electroplated mud |
| 10/06/2009 | US7597863 by employing a sulfur-containing diamide compound as an extractant for Pd among the Pt group metals, to extract Pd within a short time and to achieve a separation from other platinum group metals and base metals; separation and recovery of palladium with high efficiency |
| 10/06/2009 | US7597738 selective absorption of nickel and iron in a heap leaching solution from ore, with ion exchange resin Dowex", stripping the nickel and iron ion from the resin with sulfuric acid, neutralizing with calcium carbonate, chemical reduction; recover cobalt separately; chemical metallization |
| 10/06/2009 | CA2391091C A bacterially assisted heap leach |
| 10/01/2009 | US20090241733 Process for the instantaneous control of precipitation of nickel and cobalt present in the leach liquor, by adjusting the ph of the solution |
| 09/30/2009 | EP2104542A2 More efficient ether modifiers for copper extractant formulations |
| 09/30/2009 | EP1863944B1 Modification of copper/iron selectivity in oxime-based copper solvent extraction systems |
| 09/30/2009 | CN101545115A Method for producing electrolytic zinc from zinc oxide-containing materials |
| 09/30/2009 | CN101545056A Process for extracting nickel by acid dipping full-wet method at normal temperature and normal pressure |
| 09/30/2009 | CN101545053A Method for preparing gallium electrolyte from yellow phosphorus electric dust |
| 09/30/2009 | CN100545274C Method for extracting intermetallic compound Mg2Si or Al8Mn5 from magnesium alloy |
| 09/30/2009 | CN100545273C Gold-extraction process for tail-one cyanide containing gold wrapped by original sulfides |
| 09/29/2009 | CA2439717C Recovery of precious metals from thiosulfate solutions |
| 09/29/2009 | CA2365853C Sodium cyanide paste composition |
| 09/29/2009 | CA2331322C Process to recover molybdenum and vanadium metals from spent catalyst by alkaline leaching |
| 09/27/2009 | CA2639165A1 Method for recovering metal from ore |
| 09/25/2009 | CA2655701A1 Method of leaching copper sulfide ores containing chalcopyrite |
| 09/24/2009 | WO2009114925A1 Electrochemical process for the recovery of metallic iron and chlorine values from iron-rich metal chloride wastes |
| 09/24/2009 | WO2009114904A1 A process for atmospheric leaching of laterite ores using hypersaline leach solution |
| 09/24/2009 | WO2009114903A1 Process for the recovery of nickel and/or cobalt from high ferrous content laterite ores |
| 09/24/2009 | WO2009044298A3 Compositions and methods for coagulating silica from mineral processing streams |
| 09/24/2009 | US20090235784 Pre-treatment of feed to non-stirred surface bioreactor |
| 09/24/2009 | CA2718585A1 Electrochemical process for the recovery of metallic iron and chlorine values from iron-rich metal chloride wastes |
| 09/23/2009 | EP2102377A1 Process for recovery of nickel and cobalt from laterite ores using ion exchange resin |
| 09/23/2009 | CN101538659A Method for recovering metal gallium |
| 09/23/2009 | CN101538656A Method for extracting gold from alkaline cyanide solution |
| 09/23/2009 | CN101538652A Method for separating and recovering vanadium and chrome from vanadium and chrome-containing waste |
| 09/23/2009 | CN101538651A Method for recycling metal |
| 09/23/2009 | CN101538650A Method for wet-separation of manganese from lead and silver in electrolytic-zinc anode slime |
| 09/23/2009 | CN101538649A Iron removing method for pickle liquor during extraction of vanadium in stone coal |
| 09/23/2009 | CN101538648A Method for activating ammonia leaching for high calcium-magnesium zinc oxide ore |
| 09/23/2009 | CN101538647A Circulating type method for reclaiming copper and coagulant from heavy metal sludge |
| 09/23/2009 | CN101538646A Process method for producing copper sulfate by intensified leaching of copper-containing materials |
| 09/23/2009 | CN101538540A Composite mineral-leaching bacteria colony and use of same in biological metallurgy |
| 09/23/2009 | CN100543158C Method for purifying and enriching low-concentration vanadium-containing water solution |
| 09/22/2009 | CA2448027C Process for selectively removing molybdenum from liquid mixtures containing it together with vanadium |
| 09/22/2009 | CA2412262C Method of extraction of undersize and finest particles of gold from pulp of industrial hydro-washing machines |
| 09/22/2009 | CA2220474C Value metal recovery |
| 09/17/2009 | WO2009113842A1 Process for leaching and recovering silver and gold with ammoniacal thiosulphate solutions of copper |
| 09/16/2009 | EP1390299B1 Autoclave control mechanisms for pressure oxidation of molybdenite |
| 09/16/2009 | CN101535509A A sulfate process |
| 09/16/2009 | CN101532095A Method for producing electrodeposited cobalt by non-hydrochloric acid electrolyte |
| 09/16/2009 | CN101532094A Technology for full-process extracting and separating nickel and cobalt from acid material system with high content of calcium and magnesium impurities |
| 09/16/2009 | CN101532088A Method for recovering zinc and manganese by waste dry batteries and directly preparing desulfurizer for industry |
| 09/16/2009 | CN101532086A A vanadium-containing resin desorption method |
| 09/16/2009 | CN100540694C Method for preparing puddling iron concentrate by high-alumina iron ore |
| 09/16/2009 | CN100540693C Method for controlling leaching of silicon impurity during vanadium extraction from vanadium ore |
| 09/15/2009 | CA2449696C Method and apparatus for heating a slurry to a predetermined temperature |
| 09/11/2009 | WO2009110149A1 Process for recovery of valuable metals from scrap izo |
| 09/11/2009 | WO2009109754A1 Cleaning method |
| 09/11/2009 | WO2009109522A1 Picolylamine resins |
| 09/11/2009 | WO2009109520A1 Picolylamine resins |
| 09/11/2009 | WO2009108993A1 Process for metal seperation using resin-in-pulp or resin-in-solution processes |
| 09/10/2009 | US20090226351 Supercritical Oxidation Process for the Treatment of Corrosive Materials |
| 09/09/2009 | CN101526814A Leaching rate prediction and optimization operation method in wet metallurgical leaching process |
| 09/09/2009 | CN101525696A Method for leaching indium from leaching residue containing indium |
| 09/09/2009 | CN101525693A Method for vulcanization, reducing oxidation and enrichment of low-grade material containing arsenic, indium and germanium |
| 09/09/2009 | CN101525690A Method for separating and recovering nickel, cobalt, magnesium, iron and silicon from nickel-bearing laterite |
| 09/09/2009 | CN100537799C Biological stirring cobalt-dipping technique for concentrate containing cobalt and sulfur |
| 09/09/2009 | CN100537798C Method for removing arsenic from smoke containing arsenic trioxide |
| 09/09/2009 | CN100537797C Stone coal vanadium-extracting ore decomposition method |
| 09/09/2009 | CN100537796C Method for leaching, enriching and reclaiming indium from lead-zinc smelting by-product zinc oxide |
| 09/08/2009 | US7585380 Having fine and uniform microstructure; sputtering target and in electrical components such as capacitors |
| 09/07/2009 | CA2650327A1 Method for recovering noble metal |
| 09/03/2009 | WO2009106734A1 Multi-column sequenced separation process for separating an ionic metal derivative |