| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 10/05/2005 | CN1676635A Process for separating and recovering sludge and heavy metals in soil |
| 10/05/2005 | CN1676634A Pressure oxidation leaching-out method for nickel-cobalt oxide ore |
| 10/04/2005 | US6951960 Complexing amine with metal; stripping; regeneration amine with hydrochloric acid |
| 10/04/2005 | US6951494 Spacer recovery method and apparatus used during disassembling of an image display apparatus |
| 09/29/2005 | WO2005090619A1 Production of titania |
| 09/29/2005 | US20050211955 Using a mixture of calix[4]arene-bis-(tert-octylbenzo)-crown-6, 4',4',(5')-di-(t-butyldicyclohexano)-18-crown-6, and 1-(2,2,3,3-tetrafluoropropoxy)-3-(4-sec-butylphenoxy)-2-propanol to separate cesium and strontium from an acidic solution; especially for treating spent nuclear fuel waste |
| 09/29/2005 | US20050211631 Method for the separation of zinc and a second metal which does not form an anionic complex in the presence of chloride ions |
| 09/29/2005 | US20050211022 Integrated ammoniacal solvent extraction and hydrogen reduction of nickel |
| 09/29/2005 | US20050211019 Controlling irrigation rate as function of aeration, advection and/or temperature; efficient metal recovery from chalcopyrite ores |
| 09/28/2005 | CN1675386A Inhibition of the depletion of precious metal values from pregnant lixiviant solutions |
| 09/28/2005 | CN1673416A Method for producing indium-containing aqueous solution |
| 09/28/2005 | CN1673415A Separation of nickel ion in iron trichloride solution by crystallization and extraction method |
| 09/28/2005 | CN1220785C Dressing ore process of clay type gold ore pond leaching method |
| 09/28/2005 | CN1220784C Dressing ore process of clay type gold ore pile leaching method |
| 09/22/2005 | WO2005087375A1 Method for recovering noble metal from catalyst device having metal carrier |
| 09/22/2005 | US20050207954 Soil cleaning process |
| 09/22/2005 | US20050205470 Selective sulfur removal from hydrocarbon streams by adsorption |
| 09/21/2005 | EP1577408A1 Method for separating platinum group element |
| 09/21/2005 | EP1576200A1 A process for the recovery of adsorbed palladium from spent silica |
| 09/21/2005 | CN1670228A Technology for separating rare earth element by extraction system added with modifier |
| 09/21/2005 | CN1219896C Method of producing sodium tungstate solution using scheelite powder as raw material |
| 09/21/2005 | CN1219568C Equipment for draining two separable solutions from subsider |
| 09/21/2005 | CN1219567C Method and equipment for regulating interface of two solutions and making it separation |
| 09/20/2005 | US6946078 Electrochemical method and apparatus for producing and separating ferrate (VI) compounds |
| 09/20/2005 | US6945775 Method and apparatus for heating a slurry to a predetermined temperature |
| 09/20/2005 | CA2260564C Nickel fine powder and method for preparing the same |
| 09/15/2005 | WO2005085483A1 Metal leaching |
| 09/15/2005 | WO2005084774A1 Method for separation and up-concentration of mutually replaceable components |
| 09/15/2005 | WO2005068681A3 Cleaning tantalum-containing deposits from process chamber components |
| 09/15/2005 | WO2005031010A3 Apparatus for enhancing solubility |
| 09/15/2005 | US20050201912 Electrochemical method and apparatus for producing and separating ferrate(VI) compounds |
| 09/14/2005 | EP1573078A1 Method for reducing emissions |
| 09/14/2005 | CN1668771A Method for obtaining cobalt and nickel from ores and ore concentrates |
| 09/14/2005 | CN1668770A Metal compound removal |
| 09/14/2005 | CN1667140A Stable alkali thiourea system and its selective immersion gold method |
| 09/14/2005 | CN1667139A Mixed rare earth concentrate decomposition method |
| 09/09/2005 | WO2005083131A1 Extractants for palladium and process for separation and recovery of palladium |
| 09/07/2005 | EP1569939A1 Novel heteroatom containing tetracyclic derivatives as selective estrogen receptor modulators |
| 09/07/2005 | EP1434892B1 Chloride melt process for the separation and recovery of zinc |
| 09/07/2005 | EP1071828B1 Processing route for direct production of mixed rare earth metal oxides by selective extraction |
| 09/07/2005 | CN1665944A Metallurgy extraction method by wet method with chloride assistance |
| 09/07/2005 | CN1664134A Process for extracting zinc and indium from low-grade zinc concentrates by wet method |
| 09/07/2005 | CN1664131A Method for extracting indium from high-indium high-iron zinc sulphide concentrates by pressure acid leach and solvent extraction |
| 09/07/2005 | CN1663913A Method for producing magnesium using bischofite as raw material |
| 09/01/2005 | WO2005080031A1 Method and apparatus for producing nano-particles of silver |
| 09/01/2005 | WO2005079983A1 Method for recovering molybdenum and method for preparing catalyst |
| 09/01/2005 | US20050191854 Process for purification of germane |
| 09/01/2005 | US20050188791 Roasting base metal sulfide to reduce sulfur content to a predetermined level, an oxidative leach step to recover the base metal from the feed; predetermined sulfur content level does not exceed that is required to provide a source of heat for the oxidative leach step; hydrometallurgy |
| 08/31/2005 | EP1567684A1 Method for eliminating mercury from solutions contaminated by the same |
| 08/31/2005 | EP1567683A1 Method for removing mercury from solutions which are contaminated with mercury |
| 08/31/2005 | EP1567682A1 Method and system for extracting metal from glass waste |
| 08/31/2005 | EP1330555A4 Solvent extraction process for recovering nickel and cobalt from leach solutions |
| 08/31/2005 | CN1661120A Chlorination treatment process of Se contg. substance |
| 08/31/2005 | CN1217438C Recovery of dry cell by leaching process |
| 08/31/2005 | CN1217033C Process for preparing high-purity copper by electrolyzing extracted copper-contained organic phase |
| 08/30/2005 | US6936229 Recovery of lithium compounds from brines |
| 08/30/2005 | US6936090 Elution with a concentrated aqueous hydrochloric acid solution and an oxidizer; extend the life of ion exchangers; one step process |
| 08/25/2005 | WO2005078145A1 Aluminium production process |
| 08/25/2005 | US20050186129 reducing chloroplatinic acid in the presence of gold particles formed by reducing chloroauric acid, to form platinum particles supported on the surfaces of the gold particles; colloids having high sensitivity, used as labels for immunological measurements and as staining agent for proteins |
| 08/25/2005 | US20050183543 Silver powder made of silver particles, each to which fine silver particles adhere and process of producing the same |
| 08/25/2005 | CA2556613A1 Aluminium production process |
| 08/24/2005 | CN1659294A Method of metal recovery |
| 08/24/2005 | CN1657639A Method for directly preparing high-purifying product by barium sulphide black grey water immersion |
| 08/24/2005 | CN1657638A Solid-liquid-liquid three-phase extracting and separating method |
| 08/18/2005 | WO2005074651A2 Remediation of heavy metals in ammunition traps and shooting ranges |
| 08/18/2005 | US20050180911 Process for the isolation and purification of zirconium peroxosulfate and uses thereof |
| 08/18/2005 | US20050180903 leaching solid titaniferous material with leach solution containing sulfuric acid; forming a leach liquor that includes an acidic solution of titanyl sulfate and iron sulfate; precipitating titanyl sulfate; hydrolysing to hydrated titanium oxides ; calcining |
| 08/18/2005 | US20050179175 Method and apparatus for producing nano-particles of silver |
| 08/18/2005 | CA2596214A1 Remediation of heavy metals in ammunition traps and shooting ranges |
| 08/18/2005 | CA2472495A1 Process to recover base metals |
| 08/17/2005 | EP1563107A1 Production of titania |
| 08/17/2005 | CN1656238A Process for the treatment or removal of impurities in a hydrometallurgical extraction process |
| 08/17/2005 | CN1215061C Process for preparing anticancer compound, and intermediate |
| 08/16/2005 | US6929677 Sulfidic iron-bearing copper concentrate is leached on the countercurrent principle, in a chloride environment with the aid of bivalent copper and an oxygen-bearing gas as a multistage continuous process |
| 08/16/2005 | CA2415732C Production of zinc oxide from acid soluble ore using precipitation method |
| 08/11/2005 | WO2005073416A1 Solvent extraction process for separating cobalt and/or nickel from impurities in leach solutions. |
| 08/11/2005 | WO2005073415A1 Solvent extraction process for separating cobalt and/or manganese from impurities in leach solutions |
| 08/11/2005 | WO2005073414A1 Heap bioleaching process |
| 08/11/2005 | WO2005072863A1 Noble metal adsorbent and using the same, method of noble metal adsorption and method of noble metal recovery |
| 08/11/2005 | US20050173349 Metal ion extraction materials and processes using same |
| 08/11/2005 | CA2554446A1 Solvent extraction process for separating cobalt and/or nickel from impurities in leach solutions. |
| 08/11/2005 | CA2554438A1 Solvent extraction process for separating cobalt and/or manganese from impurities in leach solutions |
| 08/10/2005 | EP1561103A1 Separating vessel |
| 08/10/2005 | EP1171641B1 Method for treating precious metal bearing minerals |
| 08/10/2005 | CN1653198A Method for separating platinum group element |
| 08/10/2005 | CN1653197A Method for the recovery of gold |
| 08/10/2005 | CN1652855A Method and equipment for compressing a dispersion in liquid-liquid extraction |
| 08/10/2005 | CN1652854A Method and equipment for guiding a dispersion in liquid-liquid extraction |
| 08/10/2005 | CN1652853A Method and equipment to control separation of a dispersion liquid-liquid extraction |
| 08/10/2005 | CN1651584A Production method of dentritic morphology nickel powder |
| 08/10/2005 | CN1214399C Method for isolating and purifying 9OY from 90 strontium in multi-curie quantities |
| 08/10/2005 | CN1214121C Method for producing active mineral liquid from granite |
| 08/09/2005 | US6926753 Non-biochemical method to heap leach copper concentrates |
| 08/04/2005 | WO2005071121A1 Extraction of metals with diquaternary ammonium salts |
| 08/04/2005 | US20050169823 Procedure to leach copper concentrates, under pressure and at ambient temperature, by forming a reactive gel in a sulfate-chloride medium |
| 08/04/2005 | US20050167609 Method and apparatus for production of 213bi from a high activity 225ac source |
| 08/04/2005 | CA2555790A1 Extraction of metals with diquaternary ammonium salts |
| 08/03/2005 | EP1559799A2 Procedure to leach copper concentrates, under pressure and at ambient temperature, by forming a reactive gel in a sulfate-chloride medium |
| 08/03/2005 | EP1558773A1 Heap leaching base metals from oxide ores |
| 08/03/2005 | EP1558772A1 Production of titania |