| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 12/15/2010 | CN101914680A 铜萃取剂 Copper extraction agent |
| 12/15/2010 | CN101914679A Method for preparing lanthanum-enriched rare earth chloride from bastnaesite |
| 12/15/2010 | CN101914678A Method for producing industry molybdenum oxide from molybdenum concentrate |
| 12/15/2010 | CN101914676A Manganese oxide mineral sulfur-based fire reduction method |
| 12/15/2010 | CN101218359B Process for recovery of metals and equipment therefor |
| 12/15/2010 | CN101195873B Deposition gallium from water solution |
| 12/14/2010 | US7850933 monodisperse nanostructure particles comprising metals or metal oxides, formed by reacting metal compounds with reducing agents in the presence of surface stabilizer agents; particles that can form electroconductive, semiconductive or electroluminescent films |
| 12/14/2010 | US7850759 disproportionation of ore minerals into gold or silver; using microwave energy to comminute the mineral after which the noble metals is dissolved in acid and filtered off, and precipitating the metal from acid solution; due to different thermal expansion of each metal |
| 12/14/2010 | CA2432743C Non-biochemical method to heap leach copper concentrates |
| 12/09/2010 | WO2010140701A1 A metal recovery method using protonemata of moss plants |
| 12/09/2010 | US20100311847 Process for the purification of crude gas from solids gasification |
| 12/08/2010 | CN101910430A Selectively leaching cobalt from lateritic ores |
| 12/08/2010 | CN101910429A Method and apparatus for removing/recovering copper from copper-containing acidic waste liquid and process for producing copper-containing substance |
| 12/08/2010 | CN101910428A Laterite heap leaching with ferrous lixiviants |
| 12/08/2010 | CN101909770A Method of recycling useful metal |
| 12/08/2010 | CN101906542A Method for recovering germanium from flyash by wet process |
| 12/08/2010 | CN101906539A Method for removing impurity tungsten from cobalt solution |
| 12/08/2010 | CN101906538A Method for extracting nickel and molybdenum from nickel-molybdenum symbiotic ore by low-concentration composite acid and oxidizing agent |
| 12/08/2010 | CN101906537A Process for decomposing cobalt alloy |
| 12/08/2010 | CN101906536A On-site extraction, drainage and liquid collection process with auxiliary tunnels |
| 12/08/2010 | CN101905909A Compound copper extractant |
| 12/08/2010 | CN101691635B Alkali-acid double-cycle process for treating brown iron type nickel laterite ore |
| 12/08/2010 | CN101613803B Method for recovering lead from lead paste of waste lead-acid battery |
| 12/08/2010 | CN101560670B Method for refining high nickel matte |
| 12/08/2010 | CN101423895B Overflow type multi-compartment autoclave and process thereof |
| 12/08/2010 | CN101368230B Low-grade indium recycling process |
| 12/08/2010 | CN101314818B Golden shifting process of biological oxidation-torrefaction-cyanidation |
| 12/08/2010 | CN101195859B Technique for processing low concentration heavy metal sulfate liquor with microorganism method |
| 12/07/2010 | US7846379 Industrial furnace |
| 12/07/2010 | US7846233 includes using pyrite(FeS2) as a catalyst for ferric reduction in order to eliminate passivation of the chalcopyrite surface,leaching being carried out under conditions whereby the pyrite is not materially oxidized by maintaining the operating solution potential at a suitable level |
| 12/02/2010 | WO2010138094A1 Method and device for extracting free gold from placer deposits and ores |
| 12/02/2010 | WO2010135819A1 Processes for extraction of nickel with iron-complexing agent |
| 12/02/2010 | WO2010135776A1 Method of oxidative leaching of sulfide ores and/or concentrates |
| 12/02/2010 | US20100300250 Process for recovering metals from coal liquefaction residue containing spent catalysts |
| 12/02/2010 | CA2763371A1 Method of oxidative leaching of sulfide ores and/or concentrates |
| 12/02/2010 | CA2761731A1 Processes for extraction of nickel with iron-complexing agent |
| 12/01/2010 | CN1911079B Carried type, super-fine, active elemental arsenic, preparation method and use thereof |
| 12/01/2010 | CN101899583A Integrative method of two-stage acid leaching, washing and filter pressing for manganese powder pickle liquor |
| 12/01/2010 | CN101899582A Method for extracting vanadium pentoxide from vanadium slag |
| 12/01/2010 | CN101899576A Method for recycling lead from lead-acid battery paste |
| 12/01/2010 | CN101899574A Method for comprehensively reclaiming arsenic caustic dross and sulfur dioxide flue gas in antimony pyrometallurgical smelting |
| 12/01/2010 | CN101899571A Process for producing nickel and cobalt from nickel and cobalt ores |
| 12/01/2010 | CN101899570A Preoxidation treating method for leaching arsenic golden ores by using drum type reactor organisms |
| 12/01/2010 | CN101899569A Pressure leaching method of molybdenum-nickel paragenetic raw ore |
| 12/01/2010 | CN101899568A Method for producing electrolytic nickel by leaching chemically precipitated nickel sulfide with pure oxygen |
| 12/01/2010 | CN101899567A Ore pressure leaching process |
| 12/01/2010 | CN101691633B Method for innocent treatment and comprehensive utilization of manganese slag |
| 12/01/2010 | CN101619388B Method for restraining generation of manganous dithionate in process of leaching sulfur dioxide gas out of pyrolusite |
| 12/01/2010 | CN101597689B High-efficiency purification process for acid leaching solutions of active substances in waste lithium batteries |
| 12/01/2010 | CN101538656B Method for extracting gold from alkaline cyanide solution |
| 12/01/2010 | CN101528988B Method for collection of valuable metal from ITO scrap |
| 12/01/2010 | CN101457293B Method for chlorides from zinc alkali solution |
| 12/01/2010 | CN101376923B Method for recycling noble metal from spent catalyst |
| 12/01/2010 | CN101225468B Method for recovering gold, silver, iron and lead from acid calcination slag by magnetization chlorination process |
| 11/30/2010 | US7842228 Continuous refractory ore bioprocessing apparatus |
| 11/30/2010 | US7842120 leaching copper from copper sulfide ore (CuFeS2) with chloride bath and leaching and obtaining more than 98% of copper in copper sulfide ore with use of only air without specific oxidant and specific equipment |
| 11/27/2010 | CA2667033A1 Recovering metal values from a metalliferrous material |
| 11/27/2010 | CA2667029A1 Recovering metal values from leach residue |
| 11/25/2010 | WO2010090478A3 Method for leaching impurities contained in molybdenum oxide concentrates |
| 11/25/2010 | US20100296987 Method for the Recovery of Gold from a Gold-Containing Solution |
| 11/25/2010 | US20100294081 Method and apparatus for removing and recovering copper from copper-containing acidic waste liquid and method for producing copper-containing substance |
| 11/24/2010 | EP2252713A1 Method for separating zinc, iron, calcium, copper and manganese from the aqueous solutions of cobalt and/or nickel |
| 11/24/2010 | CN201648485U Device for removing slag in return pipe of rare earth extraction tank body |
| 11/24/2010 | CN201648484U Rare-earth extraction tank body mixing chamber water seal device |
| 11/24/2010 | CN201648483U Escaping-liquid recovering device of rare-earth extraction and separation tank |
| 11/24/2010 | CN201648482U Novel high-pressure leaching kettle |
| 11/24/2010 | CN201648481U Hydraulic damping balancing throttle control device for autoclave discharge |
| 11/24/2010 | CN201644247U Liquid-solid separating device |
| 11/24/2010 | CN101892394A Method and device for extracting lithium from lithium mica |
| 11/24/2010 | CN101892386A Demulsifying and detoxifying method of gallium extracting system |
| 11/24/2010 | CN101892385A Tank-leaching and pressure method for hydrometallurgy |
| 11/24/2010 | CN101892384A Method for producing mercury-free alkaline manganese electrolytic manganese dioxide |
| 11/24/2010 | CN101892383A Reinforced leaching de-ironing device and de-ironing method of manganese ore slurry |
| 11/24/2010 | CN101892380A Method for preparing vanadium pentoxide and roasting additive used therein |
| 11/24/2010 | CN101890505A Superfine cupper powder and preparation method thereof |
| 11/24/2010 | CN101275184B Method for recovering rhodium |
| 11/24/2010 | CN101186976B Method for withdrawing indium from indium-containing material |
| 11/23/2010 | US7838454 using ion exchange resin for desorbing and absorbing target materials such as copper, nickel and cobalt; noble metals gold and silver; and refractory metals molybdenum and wolfram; producing a concentrated eluate stream; purification of a waste-water steam of a copper electroplating plant |
| 11/23/2010 | US7837760 Acidithiobacillus thiooxidans, Acidithiobacillus ferrooxidans; no native microorganisms grown in inoculation solutions; no ferric oxidizing ions; inoculating, irrigating solutions nutrients are salts of ammonium, potassium, phosphate, iron, magnesium; carbon dioxide enriched air injected; self sustained |
| 11/23/2010 | CA2459899C Zinc recovery process |
| 11/18/2010 | WO2010131686A1 Scorodite-type iron-arsenic compound particles, production method, and arsenic-containing solid |
| 11/18/2010 | CA2758394A1 Scorodite-type iron-arsenic compound particles, production method thereof, and arsenic-containing solid |
| 11/17/2010 | EP1834001B1 Method for the hydrometallurgical treatment of sulfide concentrate containing several valuable metals |
| 11/17/2010 | CN201634741U Novel dump leaching prismatic spray pipe network system |
| 11/17/2010 | CN101886180A Method for preparing high-activity zinc oxide from electrolytic zinc leaching slag and lead smelting granulated slag |
| 11/17/2010 | CN101886177A Method for recovering cadmium from waste nickel-cadmium battery |
| 11/17/2010 | CN101886175A Method for producing diuranate by extracting uranium from rare earth slag containing uranium |
| 11/17/2010 | CN101886173A Comprehensive recycling process of xanthate cobalt residue in zinc hydrometallurgy |
| 11/17/2010 | CN101886170A Production process for isolating fluorine and chlorine by acid extraction during electrolytic zinc production |
| 11/17/2010 | CN101886169A New process for extracting copper from copper-cobalt mine leachate |
| 11/17/2010 | CN101886168A Extract technology of semi-manganese oxide ore |
| 11/17/2010 | CN101886167A Method for producing cathode nickel by selective leaching-electrodeposition of high nickel matte |
| 11/17/2010 | CN101586196B Vanadium-extracting process by blank roasting alkali leaching ion exchange method |
| 11/16/2010 | CA2235214C Extraction of valuable metals from sulphide minerals |
| 11/10/2010 | EP2248930A1 Process for recovery of valuable metals from scrap izo |
| 11/10/2010 | EP1664358B1 Method and apparatus for controlling metal separation |
| 11/10/2010 | CN101880782A Process for rare-earth smelting resource reclamation and cyclic production |
| 11/10/2010 | CN101880773A Manufacturing process for producing synthetic reducing agent by using waste slag of electrolytic manganese and application of synthetic reducing agent |
| 11/10/2010 | CN101880772A Method for recycling magnesium from magnesium-containing waste solution |
| 11/10/2010 | CN101880771A Method for recovering magnesium from magnesium-contained waste liquid |