| Patents for C01G 55 - Compounds of ruthenium, rhodium, palladium, osmium, iridium, or platinum (1,459) |
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| 02/10/1994 | DE4243699C1 Refining impure platinum@ in electrolytic cell - using PTFE membrane as a cation exchange membrane |
| 02/08/1994 | US5284633 Solvent extraction of precious metals with hydroxyquinoline and stripping with acidified thiourea |
| 01/18/1994 | US5279803 Precious metal recovery process from carbonaceous ores |
| 01/18/1994 | US5279802 Oxidation of metal sulfide at alkaline pH; complexing |
| 01/11/1994 | CA2058620C Oxidative secondary rhodium recovery process |
| 12/28/1993 | US5273628 Using a ceramic membrane having high ambipolar conductivity and a bismuth-containing solid solution of homogeneous microstructure |
| 12/23/1993 | WO1993025306A1 Process of removing ions from solutions using a complex with sulfur-containing hydrocarbons also containing electron withdrawing groups bonded to a solid hydrophilic matrix |
| 12/07/1993 | CA1325016C Process for the recovery of rhodium from aqueous solutions containing rhodium complexes |
| 12/07/1993 | CA1325015C Recovery process |
| 11/30/1993 | US5266558 Superconducting circuit elements with metallic substrate and method for manufacturing the same |
| 11/25/1993 | WO1993023855A1 Thick film resistor composition |
| 11/23/1993 | US5264156 Resistor composition for producing thick film resistors |
| 11/11/1993 | WO1993022472A1 Use of organo-metallic compounds for precipitating metals on substrates |
| 11/03/1993 | CN1077908A Recovery of rh from residue of reaction of carbonation |
| 10/28/1993 | DE4213292A1 Verwendung von metallorganischen Verbindungen zur Abscheidung des Metalls auf Substraten Use of organometallic compounds for the deposition of the metal on substrates |
| 10/27/1993 | EP0567438A1 Optically pure cis-oxalato(trans-l-1,2-cyclohexanediamine)Pt(II) and process for resolving optical isomers of a platinum complex compound |
| 10/13/1993 | EP0564862A1 Process for recovering rhodium from waste material generated in carbonylation reactions |
| 10/13/1993 | EP0564471A1 Recovery of rhodium values. |
| 10/12/1993 | US5252305 Heating and melting with copper or its oxide and flux material to absorb PT group metal, separation |
| 09/28/1993 | US5248496 Method of obtaining ruthenium tetroxide by oxidation of an aqueous alkali metal ruthenate solution |
| 09/22/1993 | CN1076543A Process for trapping gaseous ruthenium on polyvinyl pyridine, more particularly usable for recovering radioactive ruthenium from irradiated nuclear fuels |
| 09/14/1993 | US5244647 Process of preparing hexaamminerhodium trihydroxide, hexaammineplatinum (IV) tetrahydroxide, tetraammineplatinum (II) dihydroxide and tetraamminepalladium dihydroxide |
| 09/14/1993 | US5244601 Resistor composition and its use |
| 09/08/1993 | EP0559536A1 Process for gettering gaseous ruthenium onto polyvinylpyridine, in particular useful for the recuperation of radioactive ruthenium from irradiated nuclear fuels |
| 09/04/1993 | CA2090810A1 Process for trapping gaseous ruthenium on polyvinyl pyridine, more particularly usable for recovering radioactive ruthenium from irradiated nuclear fuels |
| 08/04/1993 | EP0504277B1 Oxidative secondary rhodium recovery process |
| 07/28/1993 | EP0552170A1 Alkali metal hydroxide generation system and the method therefor |
| 07/21/1993 | CN1021657C Transition metal recovery |
| 07/21/1993 | CN1021656C Catalytic metal recovery from non-polar organic solutions |
| 07/06/1993 | CA1319928C Catalyst for the oxidation of carbon compounds |
| 06/15/1993 | US5219540 Method of removing ruthenium contained in uranium-containing solutions |
| 06/09/1993 | EP0545586A1 Synthesis of palladium hydroxide compounds |
| 06/09/1993 | CN1072967A Synthesis of palladium hydroxide componunds |
| 05/19/1993 | EP0541937A1 Process for high temperature sintering of a resistor material based on ruthenium oxide or compounds thereof |
| 05/19/1993 | EP0541529A1 Magnetic materials and products made therefrom. |
| 05/13/1993 | WO1993009063A1 Recovery of rhodium values |
| 04/27/1993 | US5206000 Process for the recovery of rhodium from aqueous solutions containing rhodium complexes |
| 04/21/1993 | EP0537363A1 Oxide superconductor and production thereof |
| 03/03/1993 | EP0529195A1 Resistant paste for manufacturing thick-film resistors |
| 03/02/1993 | US5190661 Process of removing ions from solutions using a complex with sulfur-containing hydrocarbons |
| 02/18/1993 | WO1993002791A1 Compositions and processes for removing, separating and concentrating desired ions from solutions |
| 02/16/1993 | US5186794 Solar radiation heating of solution for electrolysis of aqueous alkali halide which also yields hydrogen and halogen gas; solar cells |
| 01/12/1993 | CA1312624C Extraction of metals |
| 12/29/1992 | CA1312087C Palladium-based complexes |
| 12/23/1992 | WO1992022674A1 Low pressure drop, high surface area platinum recovery system in a nitric acid plant |
| 12/23/1992 | EP0519701A1 Low pressure drop, high surface area platinum recovery system in a nitric acid plant |
| 12/23/1992 | CA2111198A1 Low pressure drop, high surface area platinum recovery system in a nitric acid plant |
| 12/22/1992 | US5173470 Compositions and processes for removing, separating and concentrating desired ions from solutions using sulfur and aralkyl nitrogen containing ligands bonded to inorganic supports |
| 12/10/1992 | WO1992021419A1 Treating rhodium, iridium and ruthenium solutions |
| 12/10/1992 | WO1992018232A3 Combustion catalysts containing binary oxides and processes using the same |
| 12/08/1992 | US5169300 Oxidation catalysts for carbonaceous fuels |
| 12/04/1992 | CA2103144A1 Treating rhodium, iridium and ruthenium solutions |
| 11/25/1992 | CN1019192B Rhodium recovery from hydroformylation reaction product |
| 11/11/1992 | EP0512960A1 Process of preparing hexaamminerhodium trihydroxide |
| 11/11/1992 | EP0512959A2 Process of recovering platinum group metal |
| 11/04/1992 | EP0511450A1 Superconducting circuit elements with metallic substrate and method for manufacturing the same |
| 10/29/1992 | WO1992018243A1 Praseodymium-palladium binary oxide, catalyst compositions containing the same, and methods of use |
| 10/15/1992 | WO1992017407A1 Oxide superconductor and production thereof |
| 10/13/1992 | WO1992018232A2 Combustion catalysts containing binary oxides and processes using the same |
| 10/13/1992 | CA2108031A1 Combustion catalysts containing binary oxides and processes using the same |
| 09/29/1992 | US5151537 Process for the recovery of rhodium from the residues of distillation processes |
| 09/23/1992 | EP0505339A1 Process of preparing rhodium nitrate solution |
| 09/23/1992 | EP0504277A1 Oxidative secondary rhodium recovery process. |
| 09/21/1992 | CA2063538A1 Process of preparing rhodium nitrate solution |
| 09/17/1992 | WO1992015526A1 METHOD FOR OBTAINING HIGH-PURITY PLATINUM BY TRANSFORMATION OF THE HALOGEN COMPLEXES OF Pt IN AQUEOUS SUSPENSION OR SOLUTION |
| 09/17/1992 | DE4107583A1 Verfahren zur gewinnung von platin hoher reinheit durch transformation der halogenokomplexe des pt in waessriger suspension bzw. loesung A method for extraction of platinum-high purity by transformation of the halogenokomplexe pt dissolved in aqueous suspension or spoon |
| 09/17/1992 | CA2082815A1 Method for obtaining high-purity platinum by transformation of the halogen complexes of pt in aqueous suspension or solution |
| 08/26/1992 | EP0500150A1 Catalytic metal recovery from polar organic solutions |
| 08/12/1992 | EP0498743A1 Process for the elimination of ruthenium from uranous solutions |
| 08/04/1992 | US5135622 Electrochemical synthesis of palladium hydroxide compounds |
| 07/15/1992 | EP0294387B1 Method and apparatus for biological processing of metal-containing ores |
| 07/01/1992 | EP0492691A1 Two-step method for recovering dispersed noble metals |
| 07/01/1992 | CN1017216B Recovery of noble metals |
| 06/16/1992 | US5122185 Bringing lost precious metal into contact with a foraminate element fabricated from palladium by itself or with a minor amount of another metal |
| 06/09/1992 | US5120443 Processes for removing, separating and concentrating rhodium, iridium, and ruthenium from solutions using macrocyclic and nonmacrocyclic polyalkylene-polyamine-containing ligands bonded to inorganic supports |
| 05/19/1992 | US5114473 Transition metal recovery |
| 05/19/1992 | CA1301190C Rhodium recovery from hydroformylation reaction product |
| 04/21/1992 | CA1298976C Recovery of noble metals |
| 04/14/1992 | US5105053 Catalytic oxidative dehydrogenation of light hydrocarbons to form heavier hydrocarbons |
| 04/07/1992 | US5102639 Praseodymium-palladium binary oxide, catalyst compositions containing the same, and methods of use |
| 04/07/1992 | US5102632 First chlorinating with reducing agent at low temperature, vaporizing and separating, second chlorinating the residue at higher temperature; minimizing the production of aluminum trichloride |
| 04/02/1992 | WO1992005108A1 Alkali metal hydroxide generation system and the method therefor |
| 03/18/1992 | EP0475036A1 Process for recovering rhodium from residues of the destillation of products of the oxosynthesis |
| 02/25/1992 | US5091546 Novel rhodium recovery |
| 02/25/1992 | US5091350 Extracting with aqueous solution of organic phosphine sulfonate or carboxylate and solubilizer |
| 02/11/1992 | CA1295486C Extraction of transition metals from organic solutions |
| 02/05/1992 | EP0469463A1 Metal-magnesium compounds, process for preparing same and the use thereof for the preparation of finely divided metal and alloy powders and intermetallic compounds |
| 02/04/1992 | US5085835 Oxidation of rhodium complex in presence of water soluble salt of a carboxylic acid; recovering aswater insoluble precipitate |
| 01/15/1992 | WO1992001819A1 Method for the solvent extraction of palladium from aqueous solutions |
| 01/15/1992 | CA2080686A1 Method for the solvent extraction of palladium from aqueous solutions |
| 12/31/1991 | US5076839 Precious metal refining with fluorine gas |
| 12/03/1991 | US5069824 Oxides of the pyrochlore family and electrically resistant materials that contain them |
| 10/23/1991 | EP0453214A2 Oxide superconductor and process for producing the same |
| 09/25/1991 | CN1014028B New extracting device of solvent with compact structure |
| 09/03/1991 | US5045290 Recovery of pure platinum and palladium |
| 08/21/1991 | EP0232380B1 Process for purifying silver refinery slimes |
| 07/09/1991 | US5030331 Evaporating iridium and carbon by electron beam or sputtering, heating composite film in oxidizing atmosphere, electrolytic oxidation by alternating potential in aqueous solution |
| 06/19/1991 | EP0432353A2 Resistor paste and its use |
| 06/05/1991 | WO1991008050A1 Oxidative secondary rhodium recovery process |
| 05/14/1991 | US5015461 Hydrorefining catalysts of niobium, tantalum and a divalent metal |