| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 08/03/2005 | EP1558771A1 Production of titania |
| 08/03/2005 | CN1650038A Atmospheric pressure leach process for lateritic nickel ore |
| 08/03/2005 | CN1650037A Method for refining concentrate containing precious metals |
| 08/03/2005 | CN1650036A Process for extracting platinum group metals |
| 08/03/2005 | CN1648264A Organic phase fluorine removing method after bastnaesite oxidation roasting-sulfuric acid leaching-extracting |
| 08/02/2005 | US6923922 Recover and recycle rhodium from spent partial oxidation catalysts |
| 07/28/2005 | WO2005068681A2 Cleaning tantalum-containing deposits from process chamber components |
| 07/28/2005 | US20050165120 mixing a solution of a surfactant in a polar solvent with a solution of hydrophobic nanoparticles in an organic solvent; emulsion is formed on vigorous shaking of the bi-phasic mixture, and after phase separation metal nanoparticles transfer to aqueous medium |
| 07/28/2005 | US20050161524 Method and equipment to control separation of a dispersion liquid-liquid extraction |
| 07/28/2005 | US20050161340 regeneration of metal sulfides, polysulfides or hydrosulfides, by reacting with halogens to liberate and removing sulfur, then then electrolyzing the halogenated products to separate the halogen from the metals; reuse |
| 07/28/2005 | US20050160877 recovery of gold in connection with the hydrometallurgical production of copper from a residue or intermediate product containing sulphur and iron generated in the leaching of copper raw material. The recovery of both copper and gold takes place in solution |
| 07/27/2005 | EP1557225A1 Method for clarifying soil |
| 07/27/2005 | CN1646712A Methods to reduce hydrosulphide and arsine emissions during wet ore processing |
| 07/27/2005 | CN1646711A Method for the purification of copper chloride solution |
| 07/27/2005 | CN1644721A Production of high-purity aluminium |
| 07/27/2005 | CN1212411C Ce extraction from nitric acid rare earth solution |
| 07/26/2005 | US6921522 Production of lithium compounds directly from lithium containing brines |
| 07/26/2005 | US6921474 Chloride melt process for the separation and recovery of zinc |
| 07/26/2005 | US6921426 Copper ore containing chalcopyrite as main mineral is leached at 100 degrees C and pressure greater than atmospheric to yield copper leachate containing ferric ions and sulfuric acid which is used in heap or vat leaching of low grade ore |
| 07/21/2005 | WO2005066378A1 Exothermic pressure leach autoclave circuits |
| 07/21/2005 | US20050159068 Image display apparatus, disassembly processing method therefor, and component recovery method |
| 07/21/2005 | US20050155911 [method of gold separation and gold separation device] |
| 07/21/2005 | US20050155870 Method for producing indium-containing aqueous solution |
| 07/21/2005 | US20050155459 forming a slurry of a sulfuric acid solution in an oxygen-containing atmosphere in an agitated multiple-compartment pressure leaching vessel; separating the solution from the product slurry to yield a residue; and recovering a (especially precious) metal value from the residue. |
| 07/21/2005 | US20050155458 Method for Improving Metals Recovery Using High Temperature Pressure Leaching |
| 07/20/2005 | CN1641054A Method for treating smoke containing gallium |
| 07/20/2005 | CN1640549A Method of gold separation and gold separation device |
| 07/16/2005 | CA2455527A1 Method of gold separation and gold separation device |
| 07/14/2005 | WO2005064023A1 A method of recovering metal values from refractory sulphide ores and concentrates |
| 07/14/2005 | CA2553548A1 A method of recovering metal values from refractory sulphide ores and concentrates |
| 07/13/2005 | EP1252345A4 Solvent extraction of impurity metals from a valuable metal sulphate solution |
| 07/13/2005 | CN1639360A Method for the separation of zinc and a second metal which does not form an anionic complex in the presence of chloride ions |
| 07/13/2005 | CN1639175A Novel phosphonamides, process for producing the same, and use thereof |
| 07/13/2005 | CN1639071A Method of purifying niobium compound and/or tantalum compound |
| 07/13/2005 | CN1639070A Purification method for producing high purity niobium compound and/or tantalum compound |
| 07/13/2005 | CN1639069A Purification method for producing high purity niobium compound and/or tantalum compound |
| 07/13/2005 | CN1637157A Method of and apparatus for simulating a biological heap leaching process |
| 07/13/2005 | CN1637156A Cerium reverse extracting method from cerium-carrying fluoric organic phase and cerium purifying method |
| 07/13/2005 | CN1210417C Recovery of nickel and cobalt and copper from sulfidic flotation concentrate by wet metallurgical process |
| 07/13/2005 | CN1210207C Preparation method of nano grade powder |
| 07/13/2005 | CN1210099C Chelating resin special for adsorbing gallium and preparing method thereof |
| 07/07/2005 | WO2005061741A1 Method of and apparatus for simulating a biological heap leaching process |
| 07/07/2005 | WO2005012581A3 Methods for improving the recovery of metal leaching agents |
| 07/07/2005 | US20050145073 Method for the purification of copper chloride solution |
| 07/07/2005 | DE10356822A1 Verfahren zur Abtrennung von Pb und Ni aus Co-haltigen Gemischen Process for the separation of Pb and Ni of Co-containing mixtures |
| 07/07/2005 | DE10297680T5 Verfahren zur Rückgewinnung von Nickel aus verbrauchtem Katalysator Process for the recovery of nickel from spent catalyst |
| 07/06/2005 | EP1549777A1 Method for removal of silver from a copper chloride solution |
| 07/06/2005 | CN1635170A Method for treating chromic slag by acid pickling process |
| 07/06/2005 | CN1635169A Process for preparing cerous hydroxide |
| 07/06/2005 | CN1635168A Process for extracting gold, platinum and palladium from goldmine |
| 07/06/2005 | CN1209475C Bacterially assisted heap leaching method |
| 06/30/2005 | WO2005058462A1 A method of recycling an exhausted selenium filter mass |
| 06/30/2005 | US20050142051 Process for the recovery of titanium in mixed chloride media |
| 06/30/2005 | DE10392375T5 Abtrennverfahren für Elemente der Platingruppe Separation of platinum group elements |
| 06/30/2005 | CA2549070A1 A hydrometallurgical separation process of steel mill electric arc furnace (eaf) dust and the pigments obtained by the process |
| 06/29/2005 | EP1546418A1 Recovering nickel |
| 06/29/2005 | CN1633510A Delivery system for heap bioleaching |
| 06/29/2005 | CN1632143A Method for chloridizing roasting and ammonia extraction of silver and manganese products for manganese silver finished ore |
| 06/29/2005 | CN1632141A Method for acid ammonia extraction of zinc from high silicon high iron low grade zinc oxide ore |
| 06/29/2005 | CN1208480C Method for extracting copper from mixed copper ores |
| 06/29/2005 | CN1208479C Noble metal regeneration recovering method for electronic waste material |
| 06/23/2005 | WO2005056842A1 Improved bacterial oxidation of sulphide ores and concentrates |
| 06/23/2005 | US20050136527 Device for simulating a process in which ore, in a heap, is microbiologically leached; modeling and mineral extraction/degradation |
| 06/23/2005 | US20050132844 Refining an indium sponge under a layer of alkali to form indium; smelting the indium under a layer of chloride melt to form a salt melt; treating the salt melt with twice distilled water to form indium metal; treating the indium metal with an acetic acid solution water |
| 06/23/2005 | CA2549656A1 Improved bacterial oxidation of sulphide ores and concentrates |
| 06/22/2005 | CN1629326A Process for extracting vanadium from vanadium-containing iron ore concentrate pellets |
| 06/22/2005 | CN1207409C Wet process of extracting vanadium and/or molybdenum from waste catalyst |
| 06/16/2005 | WO2005054137A1 Method for separating pb and ni from co-containing mixtures |
| 06/15/2005 | EP1539320A2 Process for reducing chromium in nonvolatile residue resulting from air oxidation of cyclohexane |
| 06/15/2005 | CN1626690A New method for hydrogen reduction separating rhodium in iridium solution |
| 06/15/2005 | CN1626689A Technique of heap leaching atomized liquid for cloth |
| 06/15/2005 | CN1206376C Bioleaching of sulphide minerals |
| 06/09/2005 | WO2005052219A1 Apparatus and method for the reduction of metals |
| 06/09/2005 | WO2005038060A8 Production of titania |
| 06/09/2005 | US20050124765 Polymeric substrate containing chelate compounds |
| 06/09/2005 | US20050123459 Method of purifying niobium compound and/or tantalum compound |
| 06/09/2005 | US20050121390 From a solution containing solid precious metal, in particular, gold, in ionic form including the step of contacting a solution containing said precious metal in ionic form with a conducting polymer, for example, a polypyrrole or polythiophene, optionally doped |
| 06/09/2005 | US20050121337 Method and apparatus for the electrodissolution of elements |
| 06/08/2005 | EP1537247A1 Metal compound removal |
| 06/08/2005 | EP1385600A4 Method of adsorbing metals and organic compounds from vaporous streams |
| 06/08/2005 | EP1206584B1 Solvent extraction process for the separation of cobalt from nickel in aqueous sulphate-containing solutions |
| 06/08/2005 | CN1205345C Method of recovering noble metal from spent catalyst containing noble metal |
| 06/02/2005 | WO2005049872A1 Process for the recovery of titanium in mixed chloride media |
| 06/02/2005 | WO2004076697A8 Extraction of metals with diquaternary amines |
| 06/02/2005 | US20050118082 Chromium removal from leach liquors produced during high pressure acid leaching of lateritic ores |
| 06/02/2005 | US20050118081 Process for the recovery of value metals from base metal sulfide ores |
| 06/02/2005 | US20050115364 Purification method for producing high purity niobium compound and/or tantalum compound |
| 06/01/2005 | EP1456426B1 A method for the recovery of cobalt |
| 06/01/2005 | EP1390299A4 Autoclave control mechanisms for pressure oxidation of molybdenite |
| 06/01/2005 | CN1621543A Method for direct extraction and separation of rare earth carbonate and rare earth oxide by using acid extractant |
| 06/01/2005 | CN1621542A Method for preventing the chlorine ion in ore pulp from corroding stainless steel reaction kettle and device thereof |
| 06/01/2005 | CN1204297C Method for removing sulfur in nickel leaching process |
| 06/01/2005 | CN1204278C Arsenic smoke dust treating method |
| 06/01/2005 | CN1204277C Method for extracting copper from copper containing sulfurized ore |
| 05/27/2005 | CA2488646A1 A collecting agent comprising ammoniated compounds (primary, secondary, tertiary amines), for use in the process of grinding and/or floating copper, molybdenum, zinc and other contained mineral ores |
| 05/26/2005 | WO2005047856A2 Automated mineral processing systems and methods |
| 05/26/2005 | WO2005047551A1 Method for removing thallium from a zinc-containing solution |
| 05/26/2005 | US20050112741 Treatment of soil impurities; coarse particle sizes; biooxidation |
| 05/26/2005 | US20050109162 From their ores by electrolysis, where a first metal is in ionic form, and a second metal is in colloidal form and is less reactive than the first metal; industrial scale electrochemistry |
| 05/25/2005 | EP1272680B1 Heap leaching of nickel containing ore with sulfuric acid |