| Patents for C22B 58 - Obtaining gallium or indium (821) |
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| 04/21/2004 | CN1490433A Preparation of high purity indium |
| 03/04/2004 | WO2003084864A3 Method of producing high-purity indium powder |
| 03/04/2004 | US20040042945 Electrolysis; solvent extraction; ion exchanging |
| 02/11/2004 | CN1138008C Preparation process of radioactive isotope gallium-67 |
| 10/16/2003 | WO2003084864A2 Method of producing high-purity indium powder |
| 10/09/2003 | WO2003083147A1 Process for recovery of gallium |
| 08/14/2003 | US20030150293 Apparatus for enhanced purification of high-purity metals |
| 08/13/2003 | EP1335032A1 Vacuum distillation method and apparatus for enhanced purification of high-purity metals like indium |
| 08/07/2003 | US20030145683 Method and apparatus for enhanced purification of high-purity metals |
| 04/08/2003 | US6544353 Surface chemical treatment for liquid gallium or gallium alloy mirrors |
| 03/18/2003 | US6533838 High purity gallium for preparation of compound semiconductor, and method and apparatus for purifying the same |
| 12/24/2002 | US6497744 Apparatus and method for generating indium ion beam |
| 11/28/2002 | DE10204831A1 Verfahren zur Herstellung indiumhaltiger wässriger Lösungen, die verminderte Mengen an metallischen Verunreinigungen enthalten A process for the preparation of aqueous solutions indiumhaltiger which reduced amounts of metallic contaminants |
| 11/27/2002 | CN1381402A Method for preparing aqueous solution container indium with low-content metal impurities |
| 11/07/2002 | US20020162419 Progressively solidifying a raw gallium material provided in liquid state inside a vessel while stirring, such that diameter of tubular solidification boundary gradually advances from inner wall plane of vessel towards center; separating |
| 10/24/2002 | US20020153521 Methods for producing indium-containing aqueous solutions containing reduced amounts of metal impurities |
| 07/24/2002 | CN1360069A Process for extracting Ga from Ga-containing ore |
| 06/12/2002 | EP1213371A2 Surface chemical treatment for liquid gallium or gallium alloy mirrors |
| 06/12/2002 | CN1353442A Apparatus and method for producing indium ion beam |
| 05/30/2002 | US20020062883 Contacting surface of liquid gallium or gallium alloy with aqueous solution of a halogenic acid to cause dissolution of gallium oxide; adding surfactant and water; allowing uniform passivating oxide layer to form |
| 05/20/2002 | CA2362106A1 Surface chemical treatment for liquid gallium or gallium alloy mirrors |
| 05/16/2002 | US20020056342 Apparatus and method for generating indium ion beam |
| 03/27/2002 | CN1341762A Preparation process of radioactive istope gallium-67 |
| 03/14/2002 | WO2002020861A1 Method for extracting gallium contained in alkaline sodium aluminate solutions |
| 11/20/2001 | US6319483 Separating jarosite from other components of the solution and concentrating the gallium by dividing into solid and liquid fractions; |
| 09/05/2001 | CN1311343A Process for recovering high purity metal gallium from liquid phase epitaxial waste liquid |
| 05/23/2001 | CN1066204C Technology of extracting indium by roasting and leaching iron vitriol slag |
| 05/16/2001 | EP1099770A1 High purity gallium for preparation of compound semiconductor, and method and apparatus for purifying the same |
| 03/14/2001 | CN1287575A High purity gallium for preparation of compound semiconductor, and method and apparatus for purifying the same |
| 02/13/2001 | US6187163 Method for plutonium-gallium separation by anodic dissolution of a solid plutonium-gallium alloy |
| 10/03/2000 | US6126719 Recovery of group III element component from group III-V waste materials |
| 07/19/2000 | EP1020537A1 Separation and concentration method for recovering gallium and indium from solutions by jarosite precipitation |
| 06/27/2000 | CA1341041C Gallium purification using n-organohydroxamic acids |
| 05/11/2000 | WO2000026422A1 High purity gallium for preparation of compound semiconductor, and method and apparatus for purifying the same |
| 10/26/1999 | US5972073 Adding alkaline earth salt to high ph waste water to form group alkaline earth-group v oxyanion salt precipitate and water soluble group iii hydroxide, filtering precipitate, then lowering ph to precipitate out group iii hydroxide |
| 07/29/1999 | WO1999037824A1 Recovery of group iii element component from group iii-v waste materials |
| 07/07/1999 | CN1221800A Tech. of extracting indium by roasting and leaching iron vitriol slag |
| 04/15/1999 | WO1999018041A1 Recovery of the components of group iii-v material aqueous wastes |
| 08/06/1996 | US5543031 Method for recovering indium by electrowinning and apparatus therefor |
| 04/02/1996 | CA2029937C Process to recover gallium from basic solutions |
| 12/19/1995 | CA1337737C Process for recovering gallium |
| 11/21/1995 | CA1337577C Dioxime kinetic enhancer for solvent extraction of gallium from basic aqueous solutions thereof |
| 10/17/1995 | US5458669 Process for purification of gallium material |
| 09/19/1995 | CA1337021C Process for the extraction and purification of gallium from bayer liquors |
| 08/29/1995 | CA1336799C Hydrometallurgic process for the treatment of an indium chloride solution |
| 06/13/1995 | US5424050 Recovering gallium compounds from aqueous sodium aluminate solutions by using treated polystyrene resin which has been impregnated with 7-alkyl(or alkenyl)-8-hydroxyquinoline, then elution |
| 03/28/1995 | CA1334892C Gallium liquid-liquid extraction process using aqueous alkaline solutions and an organic phase |
| 09/27/1994 | CA1332109C Extraction of gallium from bayer liquor with a soaked adsorbing resin |
| 09/06/1994 | US5344567 Recovery of indium by solvent extraction using trialkylphosphine oxides |
| 08/30/1994 | US5342937 Heterocyclic thione |
| 03/05/1994 | CA2077601A1 Recovery of indium by solvent extraction using trialkyl-phosphine oxides |
| 12/15/1993 | CN1023131C Process for separating gallium from basic solutions |
| 12/07/1993 | CA1324977C Process of treating residues from the hydrometallurgical production of zinc |
| 11/11/1993 | WO1993022478A1 Electrolytic method of obtaining gallium metal |
| 08/10/1993 | CA1321076C Gallium recovery process by liquid-liquid extraction |
| 05/19/1993 | CN1020757C Process for recovery of gallium using liquid-liquid extraction |
| 04/20/1993 | US5204074 Recovery of gallium values from basic aqueous solutions thereof |
| 04/07/1993 | CN1070691A Recovery of metal values from aqueous solutions |
| 11/10/1992 | CA1309869C Method for production of gallium |
| 10/06/1992 | CA1308261C Recovery of gallium |
| 07/29/1992 | CN1017631B Indium recovery technology from ferrous solution with high-indium content |
| 06/16/1992 | US5122241 Process for the hydrometallurgical treatment of a solution of materials containing gallium |
| 04/28/1992 | US5108497 From melt; treating with soda ash; water leaching |
| 04/07/1992 | US5102512 Extraction using absorbent resin, reduction, electrolysis |
| 03/24/1992 | US5098753 For screening an electrical connector, cable, tubes coated with indium that deforms without cracking |
| 02/12/1992 | CN1015437B Method for extracting and purifying gallium from bayer-liquid |
| 12/24/1991 | US5074911 Extracting metal values from aqueous solution with immiscible solvent and dissolved heterocyclic thione |
| 11/05/1991 | CA1291764C2 Gallium complexes and solvent extraction of gallium |
| 07/23/1991 | US5033712 Container for fusible materials |
| 07/09/1991 | US5030427 Washing solutions of n-organohydaoxamic acid complexes |
| 07/09/1991 | US5030426 Biomining of gallium and germanium containing ores |
| 07/09/1991 | US5030425 Biodegradation and recovery of gallium and other metals from integrated circuits |
| 06/19/1991 | EP0433107A1 Process for the recovery of gallium from basic solution |
| 05/29/1991 | CN1051760A Process for separating gallium from basic solutions |
| 05/28/1991 | US5019363 Tributyl Phosphate |
| 04/16/1991 | US5008016 Liquid/liquid extraction of gallium values from basic aqueous solutions thereof |
| 03/21/1991 | WO1991003424A1 Biomining of gallium and germanium containing ores |
| 03/12/1991 | US4999171 Process for recovery of gallium by chelate resin |
| 01/22/1991 | US4986969 Precipitation of gallium ferrocyanide |
| 01/16/1991 | EP0408203A2 Heterocyclic thione |
| 01/13/1991 | CA2020846A1 Heterocyclic thione |
| 01/10/1991 | WO1991000369A1 Biodegradation and recovery of gallium and other metal from integrated circuits |
| 12/12/1990 | EP0402046A2 Heat-shrinkable article |
| 11/28/1990 | CN1010595B Extract ga from bar solution using soaking and adsorbing resin |
| 09/11/1990 | US4956159 Process for recovering gallium trichloride from gallium-containing waste |
| 08/07/1990 | CA1272464A1 Method of recovering gallium from scrap containing gallium |
| 07/24/1990 | US4943420 Process for recovering gallium |
| 06/27/1990 | EP0375483A1 Container for a fusible material |
| 06/06/1990 | EP0371832A1 Recovery of Gallium contained in aqueous solutions |
| 05/23/1990 | CN1042383A Method for extracting gallium from ga contg. slag |
| 05/22/1990 | US4927609 Recovery of gallium/rare earth values from oxide mixtures thereof |
| 04/04/1990 | EP0362116A2 Dioxime kinetic enhancer for solvent extraction of gallium from basic aqueous solutions thereof |
| 01/24/1990 | CN1039064A Process for purification of gallium by partial solidification |
| 01/03/1990 | EP0349449A1 Process for purifying gallium by partial solidification |
| 12/27/1989 | CN1006235B Method of extracting gallium form dissociation mother liquor form the prodn. of alumina |
| 12/21/1989 | DE3820500A1 Process for concentrating the gallium present in bauxites |
| 12/19/1989 | US4888051 Method for the zone refining of gallium |
| 12/05/1989 | CA1263539A1 Process for the separation of indium from acidic solutions containing it |
| 11/29/1989 | EP0344143A2 Gallium purification |
| 11/08/1989 | EP0340547A1 Method for recovering gallium |