| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 08/22/2007 | CN101020963A Biological leaching process for separating out metal ions from waste battery directly |
| 08/22/2007 | CN101020962A Self catalyzed reduction ammonia soaking process of deep sea polymetallic nodule in ammonia-ammonium chloride system |
| 08/16/2007 | WO2007090725A1 Aqueous solutions containing metal cyanide for cyanide leaching for the winning of gold and silver |
| 08/16/2007 | US20070189943 Contacting organic phase with an aqueous solution of a stripping agent comprising an organic amine carbonate solution selected from methylamine, dimethylamine, morpholine, pyrolidine, and pyridine; distillation to recover amine; regenerating the amine carbonate solution; recycling |
| 08/16/2007 | CA2641462A1 Metal cyanide-comprising aqueous solutions for the cyanide process for extracting gold and silver |
| 08/15/2007 | EP1817437A1 Method of extraction of europium(iii) and/or yttrium(iii) ions from concentrate of luminophore dust or sludge |
| 08/15/2007 | EP1090153B1 Method of producing high purity tantalum for sputtering targets |
| 08/15/2007 | CN1332048C Supercritical separating method and system for waste printing circuit boards |
| 08/15/2007 | CN1332047C Process for nickel and cobalt extraction from laterite ores |
| 08/15/2007 | CN1332046C Zinc recovery process |
| 08/15/2007 | CN1332045C Hydrothermal method for recovering metal from waste hard alloy |
| 08/15/2007 | CN101018876A Optimization method of bioleaching process |
| 08/15/2007 | CN101016589A Continuous extraction apparatus for mineral bacteria leachate |
| 08/15/2007 | CN101016588A Method of eliminating and reclaiming metal form petroleum |
| 08/15/2007 | CN101016587A Method of reclaiming silver from silver containing solution by poly m-phenylenediamine as adsorbent |
| 08/15/2007 | CN101016586A Method of reclaiming silver from silver containing solution by poly o-phenylenediamine as adsorbent |
| 08/15/2007 | CN101016585A Method of reclaiming silver from silver ion containing solution by polydiaminoanthraquinone as adsorbent |
| 08/15/2007 | CN101016584A Multiple guide shell gas circulating bioreactor bacteria ore leaching and ore leaching bacteria culture |
| 08/15/2007 | CN101016583A Method of eliminating passivation film for chalcopyrite at lixiviating course by sulfur oxidizing bacteria |
| 08/15/2007 | CN101016582A Method of removing arsenic for anode mud with high arsenic and lead content |
| 08/15/2007 | CN101016581A Method of synthetically and highly effectively reclaiming nickel and magnesium resource from nickel-containing serpentine |
| 08/15/2007 | CN101016521A Thermophilic thiobacillus gene engineering bacterium with mercury resistant characteristic and application thereof |
| 08/15/2007 | CN101016162A Technique of preparing high-purity strontium salt by ion exchange purification method |
| 08/14/2007 | US7255795 Process for selectively removing molybdenum from liquid mixtures containing it together with vanadium |
| 08/14/2007 | US7255793 Methods for removing heavy metals from water using chemical precipitation and field separation methods |
| 08/09/2007 | WO2007088010A1 Monodisperse, macroporous chelating resins in metal winning |
| 08/09/2007 | WO2007087698A1 Hybrid process using ion exchange resins in the selective recovery of nickel and cobalt from leaching effluents |
| 08/09/2007 | WO2007087675A1 Improved base metal recovery process from heap leaching |
| 08/09/2007 | US20070183951 Method for recovering noble metals from metallic carrier catalytic device |
| 08/09/2007 | US20070183950 Method and apparatus for solar heating a leach solution |
| 08/09/2007 | US20070180953 Converting divalent copper ions contained in an aqueous solution of cobalt chloride to monovalent ions by injecting an inert gas and contacting the solution with elemental cobalt; adjusting the HCl concentration to 0.1 to 3 kmol/m3; and separating the monovalent copper ions using an anion exchange resin |
| 08/09/2007 | CA2648095A1 Hybrid process using ion exchange resins in the selective recovery of nickel and cobalt from leaching effluents |
| 08/09/2007 | CA2640479A1 Chelating resins in metal recovery |
| 08/09/2007 | CA2640122A1 Improved base metal recovery process from heap leaching |
| 08/08/2007 | CN1330780C Reductive ammoniacal leaching of nickel and cobalt bearing materials |
| 08/08/2007 | CN101014724A 镍的回收 Nickel recovery |
| 08/08/2007 | CN101014723A Preparation of zinc chemicals from the minor flow of a process |
| 08/08/2007 | CN101014407A Indium adsorbing agent and method for separating indium |
| 08/08/2007 | CN101012515A Low viscosity copper solvent extraction reagent formulations |
| 08/08/2007 | CN101012514A Method for producing metallic lead and zinc by using lead-zinc containing waste slag or lead-zinc monoxide mine |
| 08/08/2007 | CN101012513A Ultrasonic leaching-extracting separation method for low-yttrium middle-heavy rare earth mine |
| 08/08/2007 | CN101012512A Ultrasonic leaching-extracting separation method for yttrium-rich rare earth mine |
| 08/08/2007 | CN101012511A Method for eliminating calcium ion effect in gold ore bulk leaching by using descaling agent |
| 08/08/2007 | CN101012510A Method for hypersonic rare earth leaching |
| 08/08/2007 | CN101012509A Method for preparing ultra-thin highly-pure europium oxide by europium-rich sulfuric acid rare earth |
| 08/08/2007 | CN101012508A Method for preparing ultra-thin highly-pure terbium oxide by beneficiated terbium-dysprosium |
| 08/08/2007 | CN101012507A Method for preparing ultra-thin highly-pure terbium oxide by beneficiated gadolinium-terbium |
| 08/08/2007 | CN101012506A Method for preparing ultra-thin highly-pure dysprosium oxide by beneficiated terbium-dysprosium |
| 08/08/2007 | CN101012505A Method for preparing ultra-thin highly-pure lanthanum oxide by beneficiated lanthanum |
| 08/08/2007 | CN101012504A Ultrasonic strengthening extraction separation method of cerium-rich rare earth nitrate solution |
| 08/08/2007 | CN101012503A Ultrasonic leaching-extracting separation method for sulphating roasting rare earth mine |
| 08/08/2007 | CN101012502A Method for separating enriched uranium, thorium mixture and rare earth from preferred slag |
| 08/08/2007 | CN101012501A Method for separating highly-pure rare-earth oxide from yttrium-rich rare earth mine |
| 08/08/2007 | CN101012500A Method for separating highly-pure rare-earth oxide from low-yttrium middle-heavy rare earth mine |
| 08/08/2007 | CN101012499A Method for separating highly-pure rare-earth oxide from sulphating roasting rare earth mine |
| 08/02/2007 | WO2007085039A1 Biodegradation of organic compounds |
| 08/02/2007 | US20070178031 Process for upgrading an ore or concentrate |
| 08/02/2007 | DE102006004953A1 Chelatharze in der Metallgewinnung Chelate of metal recovery |
| 08/01/2007 | EP1558773B1 Heap leaching base metals from laterite ores |
| 08/01/2007 | CN101008052A Method for recovering copper from PCB copper etching liquor separated by solvent extraction technology |
| 08/01/2007 | CN101008049A Method for extracting noble metal from waste print circuit board surface and its dedicated clamp |
| 08/01/2007 | CN101008048A Highly effective composite basic additive for extracting vanadium and synchronously fixing chlorine |
| 08/01/2007 | CN101008047A Method for electrolyzing vanadium slurry and extracting vanadium pentexide using film |
| 07/26/2007 | US20070172404 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 |
| 07/25/2007 | EP1809778A1 Leaching process in the presence of hydrochloric acid for the recovery of a value metal from an ore |
| 07/25/2007 | EP1809777A1 Leaching process in the presence of hydrochloric acid for the recovery of a value metal from an ore |
| 07/25/2007 | EP1680521A4 Production of titania |
| 07/25/2007 | CN1328398C Method for extracting platinum-palladium and base metal from platinum metal sulphide ore |
| 07/25/2007 | CN1328397C Tail-mineral pipeline leaching out technology |
| 07/25/2007 | CN1328396C Method for extracting vanadium, molybdenum, nickel, cobalt, aluminium from waste aluminium base catalyst |
| 07/25/2007 | CN101006190A Method for nickel and cobalt recovery from laterite ores by reaction with concentrated acid and water leaching |
| 07/25/2007 | CN101003860A New method for extracting nickel from enriched ore of nickel sulfide |
| 07/25/2007 | CN101003857A Method for extracting metal copper from electronical wastes |
| 07/25/2007 | CN101003856A Method for separating Sr2+ - y3+ |
| 07/25/2007 | CN101003855A Technique for extracting vanadium pentoxide by the pulp resin method |
| 07/25/2007 | CN101003854A New method for soaking out enriched ores of high indium, high iron, and high sulfur zinc |
| 07/24/2007 | US7247282 Forming easy to filter precipitates of metal hydroxide and gypsum; using multistage neutralizations and recirculation to produce separate crystals; suitable for neutralization of pickling waste from steel refining |
| 07/19/2007 | WO2007080963A1 Method for separation and recovery of noble metals |
| 07/19/2007 | WO2007079532A1 Hematite precipitation |
| 07/19/2007 | WO2007079531A1 Method for the precipitation of nickel |
| 07/19/2007 | US20070167321 Method for recovering molybdenum and method for preparing catalyst |
| 07/19/2007 | US20070166214 Reductive ammoniacal leaching of nickel and coblat bearing |
| 07/19/2007 | CA2636379A1 Hematite precipitation |
| 07/19/2007 | CA2636378A1 Method for the precipitation of nickel |
| 07/18/2007 | EP1689915A4 Apparatus and method for the reduction of metals |
| 07/18/2007 | CN1327012C Wet-method for leaching of low-grade high-alkali hybrid copper ore, nickel ore and zinc ore |
| 07/18/2007 | CN101001964A Method for nickel and cobalt recovery from laterite ores by combination of atmospheric and moderate pressure leaching |
| 07/18/2007 | CN100999788A Process of nickle cobait copper ammine sulfate salt mixture evaporating ammine baking acid immersion |
| 07/18/2007 | CN100999787A Process of nickle cobait double salt sulfated baking acid immersion |
| 07/18/2007 | CN100999784A Process of recovering noble metal from hydroxylating metallurgy slag |
| 07/18/2007 | CN100999782A Comprehensive recovering process of multimetal sulfide mineral |
| 07/12/2007 | WO2007077290A1 Method for improving sulphidic concentrate leaching |
| 07/11/2007 | EP1805335A1 Process for preparing nickel loaded organic extractant solution |
| 07/11/2007 | CN2921035Y Ultrasonic calcium removal tank |
| 07/11/2007 | CN1997761A Recovery of precious metals from waste catalysts |
| 07/11/2007 | CN1997760A Tank bioleaching process |
| 07/11/2007 | CN1995415A Process for treating secondary cobalt oxalate |
| 07/11/2007 | CN1995414A Vitriol intensified leach extraction method for nickel oxide ore |
| 07/11/2007 | CN1995413A Clay ore desiliconisation method |
| 07/11/2007 | CN1995412A Environment-friendly type alumyte integrated smelting technology |