| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
|---|
| 02/08/2006 | CN1730680A Rare-earth element extraction separation process using nonsaponifying organic extractant |
| 02/08/2006 | CN1730679A Method for flotation concentrate from sulfuric-acid residue |
| 02/08/2006 | CN1240879C Method and system for recovering and removing copper from fluid |
| 02/08/2006 | CN1240859C Method for decomposing calcioscheelite and mixed wolframite calcioscheelite under normal pressure by sodium hydrate |
| 02/08/2006 | CN1240858C Carbon reducting baking process of producing RE chloride with mixed RE concentrate |
| 02/08/2006 | CN1240857C Extraction of nickle oxide from serpentine by sulfuric acid leaching out |
| 02/07/2006 | CA2272370C Production of aromatic carboxylic acids and recovery of co/mn cattalyst from ash |
| 02/02/2006 | US20060024223 Dissolving neutron-irradiated barium containing barium and Cs-131 in a an acid, adding the solution to a second solution of carbonate (ammonium carbonate) to precipitate barium carbonate, leaving the Cs-131 in solution; separating the precipitate; solids may be stored to allow more Cs-131 to be formed |
| 02/01/2006 | EP1620576A1 Improved heap leach |
| 02/01/2006 | CN1729305A Production of titania |
| 02/01/2006 | CN1729304A Production of titania |
| 02/01/2006 | CN1729303A Production of titania |
| 02/01/2006 | CN1239721C Method for treating materiel of containing arsenic |
| 02/01/2006 | CN1239720C Method for producing high purity metal zinc from zinc oxide ore |
| 01/26/2006 | WO2005103308A8 Method for extracting copper with solvent |
| 01/26/2006 | CA2574617A1 Solid/liquid reaction process and vessel incorporating buoyant covers |
| 01/26/2006 | CA2574240A1 Tank bioleaching process |
| 01/25/2006 | EP1618221A1 Method of and apparatus for simulating a biological heap leaching process |
| 01/25/2006 | EP1618220A1 Extraction of metals with diquaternary amines |
| 01/25/2006 | EP1453985B1 A method for precipitating iron from a zinc sulphate solution as hematite |
| 01/25/2006 | EP1346070B1 Method for leaching copper concentrate |
| 01/25/2006 | CN1724698A Three-layer trough series-parallel slag washing method |
| 01/25/2006 | CN1724697A Method of manufacturing electrolytic metal manganese using titanium white waste acid and manganese dioxide ore |
| 01/25/2006 | CN1238539C Electrolytic manganese tank slag quenching cleaning method to produce high quality manganese dioxide |
| 01/25/2006 | CN1238537C Method for producing low-stacking density nano-zinc oxide by ammonia leaching method |
| 01/25/2006 | CN1238536C Process for clean conversion of tantalum niobium ore |
| 01/25/2006 | CN1238535C Process for separating antimony from gold-antimony ore using wet metallurgical technology |
| 01/25/2006 | CN1238534C Method for recovering manganese from low content manganese carbonate raw ore |
| 01/19/2006 | US20060011014 Copper is obtained into the solution in divalent form by leaching into an aqueous solution of copper chloride and hydrochloric acid at a high redox potential in a solution of the oxidizing substance, stripped with sulphuric acid, electrodepositing the copper |
| 01/19/2006 | DE102004032255A1 Method for removing dissolved heavy metals, transition metals and/or metalloids from aqueous solution comprises contacting the solution with a water-insoluble hydrophilic polymer complex structure unit present in particle form |
| 01/18/2006 | EP1616040A1 Method for handling waste material generated in a metallurgical process |
| 01/18/2006 | CN1721559A Process for comprehensive recovery of rare earth and thorium from rare earth ore |
| 01/18/2006 | CN1237192C Deep purifying method for manganese sulfate solution |
| 01/18/2006 | CN1237191C Method for preparing mixed rare earths by modified extracting fatty acid of castor oil |
| 01/18/2006 | CN1237190C One-step conversion and grouping process of extracting RE sulfuric acid solution with di (2-ethylhexyl) phosphoric acid |
| 01/17/2006 | US6986192 Method for reclamation of precious metals from circuit board scrap |
| 01/11/2006 | EP1613785A1 Reductive ammoniacal leaching of nickel and cobalt bearing materials |
| 01/11/2006 | EP1613784A1 Composition and process for the solvent extraction of metals using aldoxime or ketoxime extractants |
| 01/11/2006 | CN1720343A A process for the recovery of adsorbed palladium from spent silica |
| 01/11/2006 | CN1718787A Method of bulk infusion extracting nickel cobalt from low grade red soil nickel ore |
| 01/11/2006 | CN1718786A Normal temperature normal pressure ammonia infusion-extraction-electrodeposition-slag infusion flotation of copper oxide green ore |
| 01/11/2006 | CN1718784A Method of recovery copper, nickel and noble metal in waste water and slag by combined technology of wet method and fire method |
| 01/11/2006 | CN1718783A Technololgy of extracting zinc, copper, nickel, cobalt from oxide ore by hydrometallurgy and its device |
| 01/11/2006 | CN1718782A Production method of zinc indium by pressurized acid leaching neutralization precipitation separation indium from indium containing high iron zinc sulfide concentrate |
| 01/11/2006 | CN1718779A Preparation method of super iron concentrate |
| 01/11/2006 | CN1718750A Comprehensive recovery method of pyrite slag |
| 01/11/2006 | CN1236082C Wet method copper-extracting process |
| 01/11/2006 | CN1236081C Leaching process of zinc oxide ore |
| 01/11/2006 | CN1236080C Wet separation process of waste ZnCuNi alloy |
| 01/11/2006 | CN1236079C Wet process sulfide mineral leaching-out method |
| 01/11/2006 | CN1236034C Compositions for removing metal ions from aqueous process solutions and methods of use thereof |
| 01/05/2006 | WO2006001700A1 Process for complete utilisation of olivine constituents |
| 01/05/2006 | CA2583068A1 Process for complete utilisation of olivine constituents |
| 01/05/2006 | CA2571492A1 Method for nickel and cobalt recovery from laterite ores by reaction with concentrated acid water leaching |
| 01/04/2006 | EP1432836A4 Metal ion recovery |
| 01/04/2006 | CN1715430A Process for separating zinc from rare-earth and preparing basic zinc carbonate |
| 01/04/2006 | CN1715429A 7815 extracting agent as germanium extracting additive and extracting method using said additive |
| 01/04/2006 | CN1715428A Method for extracting metal solvent |
| 01/04/2006 | CN1715427A Self protection process for preparing fluorescent grade europium oxide extractor by reducing extracting method |
| 01/04/2006 | CN1234888C Technology for treating calcined pyrite by chemical submersion washing method |
| 01/03/2006 | USH2140 Bio-oxidation process and apparatus |
| 12/29/2005 | WO2005124921A1 Method of disposing of lithium battery |
| 12/29/2005 | WO2005123971A2 Scavenger supports with amino-functionalised pendant ketoester or ketomide groups for removing metals from solutions |
| 12/29/2005 | WO2005123308A1 Copper-containing tin powder and method for producing the copper-containing tin powder, and electroconductive paste using the copper-containing tin powder |
| 12/29/2005 | WO2004096400A3 Interlaced series parallel configuration for metal solvent extraction plants |
| 12/29/2005 | US20050284824 Filter cake treatment apparatus and method |
| 12/29/2005 | US20050284546 Tantalum sputtering target and method of manufacture |
| 12/29/2005 | US20050284259 Tantalum sputtering target and method of manufacture |
| 12/29/2005 | CA2571135A1 Copper-containing tin powder and method for producing the copper-containing tin powder, and electroconductive paste using the copper-containing tin powder |
| 12/28/2005 | EP1608787A1 Microorganism and method for leaching mineral sulphides |
| 12/28/2005 | EP1366201B1 A method for the removal of calcium from a zinc process sulfate solution |
| 12/28/2005 | EP1303641B1 Method for recovery of copper from sulfidic ore materials using super-fine grinding and medium temperature pressure leaching |
| 12/28/2005 | CN1713943A Production of pure molybdenum oxide from low grade molybdenite concentrates |
| 12/28/2005 | CN1233855C Method for promoting activated carbon fibers to reduction and adsorbing noble metal ions by organic chelating agent |
| 12/27/2005 | US6979429 Contacting the metal containing material with a mineral acid and a complexing agent to digest ore residue under temperature and pressure conditions suitable to form a (complexing agent)/(fluoride) complex and solubilize; separating |
| 12/27/2005 | CA2391939C Carbonyl process for recovery of purified cobalt |
| 12/22/2005 | WO2005120677A1 Method and apparatus for purification of slightly water-soluble organic solution from aqueous entrainment |
| 12/22/2005 | WO2005120676A1 Method and apparatus for purification of an aqueous solution form droplets of extraction solution |
| 12/21/2005 | EP1606424A1 Method for the fine refinement of gold |
| 12/21/2005 | EP1257674B1 Method for upgrading steel plant dust |
| 12/21/2005 | CN1710119A Process for removing impurity element aluminium from rate-earth solution by fatty acid extraction |
| 12/21/2005 | CN1710118A Detinning method of tungstate solution |
| 12/21/2005 | CN1710117A Deep-purifying detinning method of sodium tungstate solution |
| 12/21/2005 | CN1710116A Method for extracing zinc from waste zinc acetate |
| 12/21/2005 | CN1232662C Method for extracting cobalt from industrial waste residue |
| 12/21/2005 | CN1232444C Method for separating rhenium |
| 12/15/2005 | WO2005118894A1 Leaching process for copper concentrates |
| 12/15/2005 | US20050274227 Lead-free bonding systems |
| 12/15/2005 | DE102004022705A1 Verfahren zur Abtrennung von Uranspecies aus Wasser Process for the separation of uranium species from water |
| 12/14/2005 | EP1604047A1 Method for the refinement of gold |
| 12/14/2005 | CN1708595A A process for simultaneous recovery of chromium and iron from chromite ore processing residue |
| 12/14/2005 | CN1706973A Zinc powder reduction process of preparing europium-enriched solution |
| 12/14/2005 | CN1706972A Improvent of RE extracting and separating process and circular waste liquid utilizing method |
| 12/13/2005 | CA2251433C Process for upgrading copper sulphide residues containing nickel and iron |
| 12/13/2005 | CA2233417C Copper recovery |
| 12/08/2005 | WO2005116281A1 Method of recovering nickel or cobalt |
| 12/08/2005 | WO2005116279A1 Method of recovering nickel and cobalt |
| 12/08/2005 | US20050269208 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 |
| 12/07/2005 | CN1705525A Method for clarifying soil |
| 12/07/2005 | CN1230657C Apparatus for heating flowing material containing solids |