| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 05/21/2009 | US20090126529 Highly Pure Hafnium Material, Target and Thin Film Comprising the Same and Method for Producing Highly Pure Hafnium |
| 05/20/2009 | CN101435027A Method for recycling high purity molybdenum from molybdenum-containing spent catalyst |
| 05/20/2009 | CN101435022A Novel process for controlling formation of third phase in copper sulphide ore bioleaching liquid extraction process |
| 05/20/2009 | CN101435021A Acid heap leaching process for cupric oxide ore |
| 05/20/2009 | CN101434920A An strain of low temperature leaching-ore bacteria and process for using the same for low temperature heap leaching of nickel sulfide ore |
| 05/20/2009 | CN101434918A Leaching-ore bacteria and high temperature heap bioleaching process for chalcopyrite ore by using the same |
| 05/20/2009 | CN101434917A Acidophilic leaching-ore bacteria, heap bioleaching process for low grade phosphate ore by using the same |
| 05/20/2009 | CN101434909A Penicillium, as well as preparation method and application |
| 05/20/2009 | CN101434385A Process for extracting tellurium from copper anode mud |
| 05/20/2009 | CN100489126C Method of reclaiming chemical industry products by using industrial slag containing vanadium, chromium, iron and phosphorous |
| 05/20/2009 | CN100489125C Niobium purifying method |
| 05/19/2009 | US7534407 Recovery of nickel |
| 05/19/2009 | US7534285 Extraction a metal; concentration; minaturization of concentration; extraction; recovering of gold |
| 05/14/2009 | US20090121397 Reduction retort, reduction retort manufacture method, and vacuum smelting reduction furnace using the same |
| 05/14/2009 | CA2621589A1 Methods for eliminating cyanide from mining waste liquids |
| 05/13/2009 | EP2058410A1 Process for treating aqueous lateritic-ore pulps in pressurized acid technology |
| 05/13/2009 | CN101432454A Processing of waste or cyclone solids from the chlorination of titanium bearing ores |
| 05/13/2009 | CN101432452A Mineral extraction system and process |
| 05/13/2009 | CN100487141C Technique for extracting titanium slag form red mud |
| 05/13/2009 | CN100486666C Method for preparing ammonia-calcium composite saponification agent and method for continuous saponification extracting |
| 05/12/2009 | CA2421722C Pressure leaching process for zinc recovery from sulphidic ore materials |
| 05/12/2009 | CA2292745C Separating metal ions absorbed on a resin and installation for recycling photographic effluents including an exchanger and an electrolysis vessel |
| 05/07/2009 | WO2009059336A1 High temperature leaching process |
| 05/07/2009 | US20090117018 Process for the Separation and Purification of Hafnium and Zirconium |
| 05/07/2009 | US20090114600 producing a precipitate by reacting with the heteropoly acid or heteropoly acid anion; purification; removal of a metal complexes catalyst |
| 05/07/2009 | CA2703863A1 High temperature leaching process |
| 05/06/2009 | EP2054534A1 Improved hydrometallurgical method for the extraction of nickel from laterite ores |
| 05/06/2009 | CN101426731A Method for treating arsenic containing solution |
| 05/06/2009 | CN101423897A Method for extracting nickel oxide from lateritic nickel |
| 05/06/2009 | CN101423895A Overflow type multi-compartment autoclave and process thereof |
| 05/06/2009 | CN101423894A Method for improving nickel cobalt leaching rate from lateritic nickel at low cost |
| 05/06/2009 | CN101423893A Underflow type multi-compartment autoclave and process thereof |
| 05/06/2009 | CN100485091C Separation method of nickel ion in iron trichloride solution by crystallization and extraction method |
| 05/06/2009 | CN100485060C Method for recovering gold from a gold-containing solution |
| 05/06/2009 | CN100485059C Method for recovering gold from sulphide concentrate |
| 05/06/2009 | CN100485058C Process of recovering noble metal from hydroxylating metallurgy slag |
| 05/06/2009 | CN100485056C Zinc powder reduction process of preparing europium-enriched solution |
| 05/06/2009 | CN100485055C Method for leaching gold mine by electrochemistry oxidation method |
| 05/05/2009 | CA2207518C Method of leaching metal from a heap of comminuted ore |
| 04/29/2009 | EP1978117A4 Method for extracting precious metals |
| 04/29/2009 | EP1805335A4 Process for preparing nickel loaded organic extractant solution |
| 04/29/2009 | EP1628767A4 A resin and process for extracting non-ferrous metals |
| 04/29/2009 | CN101421426A Process for extracting gold from gold-bearing ore |
| 04/29/2009 | CN101418385A Method for extracting vanadium pentoxide from vanadium-containing steel slag |
| 04/29/2009 | CN101418379A Method for extracting nickel and cobalt by enclosed leaching nickel oxide mine |
| 04/29/2009 | CN101418359A Method for extracting iron and high grade ferro-nickel alloy from laterite nickle mine |
| 04/29/2009 | CN101417208A Extractive agent recovering method in water phase using film isolation technique |
| 04/29/2009 | CN100482818C Method for recovering micro-nickel and cobalt from manganese ore |
| 04/29/2009 | CN100482814C Extraction of vanadium and molybdenum compound from refused materials containing vanadium and molybdenum etc. multiple elements |
| 04/28/2009 | US7524469 Solvents; calix[4]arene-bis-(tert-octylbenzo)-crown-6 ("BOBCalixC6"), 4',4',(5')-di-(t-butyldicyclo-hexano)-18-crown-6 ("DtBu18C6"), 1-(2,2,3,3-tetrafluoropropoxy)-3-(4-sec-butylphenoxy)-2-propanol ("Cs-7SB"), and a diluent; simultaneous removal of cesium and strontium from the aqueous phase |
| 04/23/2009 | WO2007119239A3 Method for extracting metals from ore |
| 04/23/2009 | CA2702923A1 Azetidinium-functional polysaccharides and uses thereof |
| 04/22/2009 | EP2049468A2 Highly-conductive copper extractant formulations |
| 04/22/2009 | EP1831411B9 Extraction process for metals like gold and platinum incl. fine grinding , pulping and oxygenating |
| 04/22/2009 | CN101415848A Hybrid process using ion exchange resins in the selective recovery of nickel and cobalt from leaching effluents |
| 04/22/2009 | CN101413067A Chemical extraction method and apparatus for metal gallium |
| 04/22/2009 | CN101413059A Process for comprehensively and efficiently recycling zinc and indium in indium raffinate |
| 04/22/2009 | CN100480405C High purity tantalum and products containing the same like sputter targets |
| 04/22/2009 | CN100480404C Method for leaching vanadium from stone-like coal by oxidation transformation |
| 04/22/2009 | CN100480402C Method for reclaiming solar battery thin splinter or IC splinter |
| 04/22/2009 | CN100480401C Methoxy-pheyl-sulfamic acid modified aniline copolymer used as silver ion absorbent |
| 04/22/2009 | CN100480400C Method for warming and compression production of ammonium metavanadate and warming and compression decomposition tower |
| 04/16/2009 | WO2008021683A3 Cavitation process for titanium products from precursor halides |
| 04/15/2009 | EP1929056A4 Process for leaching lateritic ore at atmospheric pressure |
| 04/15/2009 | CN101407881A High purity tantalum and products containing the same like sputter targets |
| 04/15/2009 | CN101407862A Method for previously removing copper from copper-containing solution |
| 04/15/2009 | CN101407861A Method for comprehensively recycling nickel-containing limonite |
| 04/15/2009 | CN100478464C Tank bioleaching process |
| 04/15/2009 | CN100478463C Technique for fast preparing spongy copper |
| 04/15/2009 | CN100478462C Process for reclaiming chromium and aluminum by comprehensive treatment of sludge containing chromium-aluminium |
| 04/15/2009 | CN100478281C Manufacture of copper arsenite and application of the same |
| 04/14/2009 | US7517461 Method and equipment to control separation of a dispersion liquid-liquid extraction |
| 04/14/2009 | US7517435 Filtering an alkali solution or an alcoholic alkali metal alkoxide solution contaminated with mercury through carbon and then through an inert fiber material; distilling off water or alcohol and removing the solution depleted in mercury at the column bottom |
| 04/14/2009 | US7517384 During metal recovery from an ore, a seeding agent is introduced to provide a nucleation site for the crystallization and/or growth of solid species which otherwise tend to passivate the reactive process or encapsulate the metal value |
| 04/14/2009 | US7517383 Method for recovery of zinc by countercurrent leaching |
| 04/09/2009 | US20090090215 degassing for remove the byproduct gas; prevent increase in particle sizes, and that the monodispersibility gets worse; in a gas-liquid separation unit that is installed in a midway of the pipe; used in the magnetic layer of a magnetic record medium |
| 04/09/2009 | CA2699337A1 Compositions and methods for coagulating silica from mineral processing streams |
| 04/08/2009 | CN101403052A Novel process for solvent extraction decomposition of little cerium and rich lanthanum from fluorine-carbon-cerium rare earth mine |
| 04/08/2009 | CN101403051A Method for recycling indium from germanium distillation waste acid |
| 04/08/2009 | CN101403048A Sulphuric acid solvent extraction method for recycling indium from germanium distillation waste acid |
| 04/08/2009 | CN101403045A Synthetic recovery method for plumbum anode slime slag rich in bismuth |
| 04/08/2009 | CN101403037A Earth's surface biological dump leaching process for secondary copper sulfide ore with higher arsenic content |
| 04/08/2009 | CN101403036A Method for separating titanium, iron ore |
| 04/08/2009 | CN101403035A Method for comprehensive exploitation of low-ore grade laterite nickel mine |
| 04/08/2009 | CN100475986C Ion exchange process for preparing ammonium tungstate solution |
| 04/08/2009 | CN100475985C Recovering process of valuable metal from crude bismuth |
| 04/07/2009 | US7514050 Processing of acid-consuming mineral materials involving treatment with acidic biooxidation effluent |
| 04/02/2009 | WO2009039643A1 Producing nickel hydroxide suitable for pelletization with iron-containing ore and for stainless steel manufacture |
| 04/02/2009 | WO2009039580A1 Stabilisation of metal sulfates |
| 04/02/2009 | WO2009039560A1 A micronutrient fertiliser and method for producing same |
| 04/02/2009 | WO2009004321A3 Settler tank for use in the solvent extraction of metal from matel ore |
| 04/02/2009 | CA2700959A1 Producing nickel hydroxide suitable for pelletization with iron-containing ore and for stainless steel manufacture |
| 04/01/2009 | CN101400607A Method of recovering rare earth element from composition containing rare earth fluoride |
| 04/01/2009 | CN101397604A Dense alkali liquid leaching pre-desiliconisation method for bauxite |
| 04/01/2009 | CN100473732C Device for leaching gold mine by electrochemistry oxidation method |
| 04/01/2009 | CA2599490A1 Producing precious metals, particularly the platinum group metals |
| 03/31/2009 | US7510593 Method for producing concentrates |
| 03/26/2009 | WO2009038963A1 Silica removal from pregnant leach solutions |
| 03/26/2009 | WO2009038962A1 Controlled copper leach recovery circuit |
| 03/26/2009 | WO2005010086A3 Immobilization methods for organic molecules telomers and polymers on solid substrates |