| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 12/03/1996 | CA2013536C Recovery of dissolved gold by sodium borohydride reduction |
| 11/27/1996 | CN1136535A Products of poly aluminium-ferrous chloride and polymerized aluminium-ferrous sulfate and technology |
| 11/26/1996 | US5578547 Peat moss, sodium silicate or polysulfone binder |
| 11/26/1996 | US5578217 Use a solvent impregnated crosslinked matrix for metal recovery |
| 11/19/1996 | US5575981 Method for acidic leaching of lateritic ores |
| 11/13/1996 | EP0741802A1 Leaching of titaniferous materials |
| 11/13/1996 | CN1135533A Method for recovering cobalt |
| 11/13/1996 | CN1033279C Technology for separation of zirconium and hafnium by distillation and extraction with trioctylamine |
| 11/13/1996 | CN1033278C Gold extracting method by low-pressure hot acid immersing polyurethane foam |
| 11/12/1996 | US5573739 Selective bismuth and antimony removal from copper electrolyte |
| 11/12/1996 | US5573575 Separating ore into fines and coarse fraction, forming heap with coarse fraction, producing concentrate from fines, adding concentrate to heap, biooxidizing ore in heap, hydrometallurgically treating ore to recover precious metal |
| 11/05/1996 | US5571308 Method for recovering nickel from high magnesium-containing Ni-Fe-Mg lateritic ore |
| 11/05/1996 | US5571306 Feedstock for steel making |
| 10/31/1996 | WO1996034121A1 Method of treating intractable gold- and silver-containing materials, ores and concentrates |
| 10/30/1996 | EP0739430A1 Process for making copper wire |
| 10/30/1996 | CN1134730A Upgrading titaniferous materials |
| 10/30/1996 | CN1134472A Process for production of pure solutions of tungsten and molybdenum |
| 10/24/1996 | WO1996033132A1 Extraction of cesium and strontium ions from nuclear waste |
| 10/17/1996 | WO1996032512A1 Hydrometallurgical treatment for the purification of waelz oxides through lixiviation with sodium carbonate |
| 10/16/1996 | EP0677118B1 Hydrometallurgical recovery of metals from complex ores |
| 10/16/1996 | CN1133617A Gold lixiviation using nitrogen and sulfur beterocyclic aromatic |
| 10/16/1996 | CN1133346A Sorting cerium process by extraction from rare-earth sulfate solution containing fluorine |
| 10/15/1996 | US5565039 Method for dissolution of soft metals from a substrate of a harder metal |
| 10/10/1996 | DE19512498A1 Extraction of metals, e.g. copper@ and gold@, from ores |
| 10/09/1996 | CN1133071A Recovery of palladium catalyst |
| 10/02/1996 | EP0734355A1 Recovery of spent catalyst |
| 10/02/1996 | CN1132104A Extraction of acids and metal salts from queous solutions with diethyl dodecylphosphonate |
| 10/01/1996 | US5560960 Polymerizing bilayer lipid vesicles, providing catalytic metal salt in interior, removing salt on outer surfaces, diffusing solution for electroless deposition of metal into interior of vesicles, depositing metal by reduction |
| 09/26/1996 | WO1996029439A1 Atmospheric mineral leaching process |
| 09/25/1996 | CN1032871C Method of extrating and separating zirconium from scandium oxide |
| 09/24/1996 | CA2027514C Process for the recovery of rhodium from distillation residues of products of the oxo synthesis |
| 09/18/1996 | EP0731805A1 Amides of acids of phosphorus for the extraction of metals |
| 09/18/1996 | CN1131442A Process for elution of precious metals adsorbed on active carbon |
| 09/18/1996 | CN1131441A Method for removing zinc from sulphured concentrates |
| 09/18/1996 | CN1131200A Solvent extraction and separation new system of thulium, ytterbium and lutetium |
| 09/18/1996 | CN1131199A Method for leaching nickel-copper matte |
| 09/17/1996 | US5557003 Alkylphenoxy substituted bis (thio phosphoryl) amines |
| 09/17/1996 | CA2014733C Treatment of high nickel slimes |
| 09/12/1996 | WO1996027556A1 Purification of metal containing solutions |
| 09/12/1996 | DE19608905A1 Bis:1,1,3,3=tetra:methyl-butyl phosphinic and thio-phosphinic acids |
| 09/11/1996 | CN1130595A Comprehensive utilization method for decomposition of B-Mg-Fe ore with sulfuric acid |
| 09/11/1996 | CN1032765C Method for separating americium and curium from rare earth elements of fission products |
| 09/11/1996 | CN1032764C Method for extracting noble metal and valueable metal from tin anode mud |
| 09/04/1996 | EP0729437A1 Metal and fluorine values recovery from mineral ore treatment |
| 08/29/1996 | WO1996026004A1 Colloidal metal preparation and method for producing it |
| 08/29/1996 | DE19506113A1 Kolloidale Metallzubereitung und Verfahren zu ihrer Herstellung Colloidal metal composition and methods for their preparation |
| 08/28/1996 | CN1032657C Controlling pollution method for wet process of smelting Mn or Zn by increasing or decreasing pressure |
| 08/27/1996 | US5549811 Process for decontamination soils polluted with metals |
| 08/22/1996 | WO1996025525A1 Modifiers for aldoxime extractant of metal values |
| 08/22/1996 | WO1996025393A1 Amphiphilic compounds with at least two hydrophilic and at least two hydrophobic groups based on dicarboxylic acid diamides |
| 08/21/1996 | CN1129256A Technology for concentrating rare earth feed liquid by extraction method |
| 08/21/1996 | CN1032597C Method for recovering gold of low concentration |
| 08/21/1996 | CN1032596C Method for separating americium and rare-earth element by multi-stage fractionation extraction without complex agent |
| 08/20/1996 | US5547583 Method for separating contaminants from solution employing an organic-stabilized metal-hydroxy gel |
| 08/15/1996 | WO1996024699A1 Treatment of titanium-containing material |
| 08/14/1996 | CN1128961A Solvent extraction for metalic matter |
| 08/13/1996 | US5544756 Dynamic mining system comprsing hydrated multiple recovery sites and related methods |
| 08/08/1996 | WO1996023905A1 Hydrometallurgical processing of flue dust |
| 08/07/1996 | CN1128296A Method for extracting noble metal by using modified lime-sulfur mixture |
| 08/06/1996 | US5542957 Recovery of platinum group metals and rhenium from materials using halogen reagents |
| 08/06/1996 | CA2090468C Silver recovery process |
| 07/31/1996 | EP0723599A1 Recovery of palladium catalyst |
| 07/31/1996 | EP0642595B1 Continuous ore reaction process |
| 07/31/1996 | CN1127791A Method for enriching and making high purity scandium from rare-earth mixture contg. Sc |
| 07/30/1996 | US5540843 Method for preferential retention of cesium cations and their separation from other inorganic cations |
| 07/24/1996 | CN2231689Y Desorption equipment for carbon carrying gold |
| 07/23/1996 | CA2008063C Hydrometallurgical leaching process and apparatus |
| 07/17/1996 | CN1126764A Metallurgical technology of sulfuric acid treatment of concentrated gold ore powder |
| 07/16/1996 | US5536387 Silver removal |
| 07/16/1996 | US5536297 Gold recovery from refractory carbonaceous ores by pressure oxidation and thiosulfate leaching |
| 07/16/1996 | US5535992 Apparatus and method for acidic leaching of lateritic ores |
| 07/16/1996 | CA2028293C Method for treating zinc-containing sulfate solution |
| 07/10/1996 | EP0721017A1 Process for preparing pure solutions of tungsten and molybdenum |
| 07/10/1996 | EP0720661A1 Process for the elution of precious metals adsorbed on active carbon |
| 07/10/1996 | CN1126499A Process for removing, separating, and concentrating metals |
| 07/10/1996 | CN1126498A Recovery of metals from sulphidic material |
| 07/10/1996 | CN1126247A Polyhydroxy aromatic acids reduction leaching method of manganese oxide ore |
| 07/10/1996 | CN1126246A Arylamine reduction leaching method of ocean manganese nodules |
| 07/10/1996 | CN1126245A Ascorbic acid reduction leaching method of manganese oxide ore |
| 07/10/1996 | CN1126244A Phenol reductin leaching method of manganese oxide ore |
| 07/10/1996 | CN1126177A Prodn. of alumina by salting-out method |
| 07/04/1996 | WO1996020291A1 Recovery of nickel and cobalt from laterite ores |
| 07/04/1996 | CA2166368A1 Process for the production of pure solutions of tungsten and molybdenum |
| 07/03/1996 | EP0719347A1 Method for removing zinc from sulphured concentrates |
| 07/03/1996 | EP0719346A1 Ilmenite processing using cold milling |
| 07/03/1996 | EP0658214A4 Upgrading titaniferous materials. |
| 07/03/1996 | CN1125962A Method for treatment of residues from organochlorosilane and/or chlorosilansynthesis |
| 07/02/1996 | US5531970 Calcium fluoride sediments, complexing, reacting with acid, separating primary values of ta and nb from secondary values of u or th, solubilizing |
| 06/27/1996 | WO1996019841A1 Process for recovery of metals from used nickel-metal hydride accumulators |
| 06/27/1996 | WO1996019840A1 Process for recovery of metals from used nickel-metal hydride accumulators |
| 06/27/1996 | WO1996019593A1 Chloride assisted hydrometallurgical copper extraction |
| 06/27/1996 | DE4446618A1 Electronic waste metal processing method for esp. circuit board |
| 06/27/1996 | DE4445496A1 Verfahren zur Rückgewinnung von Metallen aus gebrauchten Nickel-Metallhydrid-Akkumulatoren A process for the recovery of metals from used nickel-metal hydride storage batteries |
| 06/27/1996 | DE4445495A1 Verfahren zur Rückgewinnung von Metallen aus gebrauchten Nickel-Metallhydrid-Akkumulatoren A process for the recovery of metals from used nickel-metal hydride storage batteries |
| 06/27/1996 | CA2208320A1 Process for recovery of metals from used nickel/metal hydride storage batteries |
| 06/26/1996 | EP0717783A1 Upgrading titaniferous materials |
| 06/26/1996 | CN1125261A Organic phase continuous saponification technique |
| 06/26/1996 | CN1125260A Method for removing europium oxide from high pure gadolinium oxide |
| 06/26/1996 | CN1032143C Process for leaching Au and Ag by use of mercaptoacetic acid (salt) and thiourea combination |
| 06/25/1996 | US5529672 Mineral recovery apparatus |