| Patents for C01G 7 - Compounds of gold (484) |
|---|
| 09/10/1985 | US4540435 Solvent extraction of gold and silver anions under alkaline conditions |
| 08/27/1985 | US4537628 Recovery of precious metals |
| 07/09/1985 | US4528166 Recovery of gold and/or silver from cyanide leach liquors on activated carbon |
| 06/04/1985 | CA1188109A1 Metal recovery |
| 05/02/1985 | EP0139056A1 Recovering of gold and silver from an aqueous solution containing cyanic compounds of gold and silver |
| 04/03/1985 | EP0135950A1 Process for winning copper and optionally silver and gold by leaching oxidic and sulphurized materials using cyanides soluble in water |
| 01/31/1985 | WO1985000384A1 Improvements in or relating to the dissolution of noble metals |
| 01/02/1985 | CA1180315A Stripping gold or silver from particulate materials |
| 11/20/1984 | CA1178063A1 Process for the extraction of precious metals for concentrates thereof |
| 11/06/1984 | CA1177254A1 Process for the extraction of precious metals for concentrates thereof |
| 10/30/1984 | US4479922 Solvent treatment in the separation of palladium and/or gold from other platinum group and base metals |
| 09/25/1984 | CA1174861A1 Selective extraction of gold |
| 09/18/1984 | CA1174474A1 Process for separating metals from aqueous solutions |
| 08/28/1984 | US4468303 Metal recovery |
| 06/26/1984 | CA1169773A1 Preparation and use of a su195m xxau-containing liquid |
| 05/15/1984 | US4448694 Metal extraction from solution and immobilized chelating agents used therefor |
| 04/25/1984 | EP0106327A2 Selective separation of noble metals |
| 03/27/1984 | US4439235 Chlorination process for removing precious metals from ore |
| 01/24/1984 | US4427571 Composition for stripping gold or silver from particulate materials |
| 11/08/1983 | US4414145 Preparation and use of a 195M-AU-containing liquid |
| 09/27/1983 | CA1154265A1 Precious metals recovery process |
| 08/30/1983 | CA1152754A1 Process for the recovery of gold from carbonaceous ores |
| 08/09/1983 | US4397690 Process for recovering gold |
| 08/09/1983 | US4397689 Process for the extraction of precious metals from concentrates thereof |
| 07/12/1983 | US4392962 Process for separating metals from aqueous solutions |
| 06/28/1983 | US4390366 Process for the extraction of precious metals from solutions thereof |
| 03/02/1983 | EP0073108A1 A process for the recovery of metals |
| 02/08/1983 | US4372830 Recovery of gold in gold plating processes |
| 02/01/1983 | US4371393 Reduction |
| 01/11/1983 | US4368073 Preferential precipitation |
| 12/22/1982 | EP0067537A1 Process for the lowering of the oxidation state of metal salts |
| 08/18/1982 | EP0057684A1 Recovery of metal values |
| 08/03/1982 | US4342591 Process for the recovery of gold and/or silver and possibly bismuth contained in sulfuretted ores and/or sulfoarsenides |
| 06/15/1982 | CA1125729A1 Regeneration of activated carbon |
| 05/26/1982 | EP0052253A2 Process for winning metals from aqueous solutions |
| 04/15/1982 | WO1982001196A1 Gold recovery process |
| 04/14/1982 | EP0049567A1 Process for the extraction of precious metals from solutions thereof |
| 04/07/1982 | EP0049172A1 Gold recovery process |
| 03/24/1982 | EP0048103A1 Process for the extraction of precious metals from concentrates thereof |
| 02/18/1982 | WO1982000478A1 Recovery of metal values |
| 02/17/1982 | EP0046025A2 Selective extraction of gold |
| 10/27/1981 | US4297134 Method of recovering gold |
| 10/06/1981 | US4293530 Removal of iron as sulfate |
| 09/29/1981 | US4292280 Hydrometallurgy |
| 07/14/1981 | CA1104967A1 Vacuum pipestill operation |
| 06/09/1981 | CA1102557A1 Desorption of gold from activated carbon |
| 06/09/1981 | CA1102525A1 Chlorides of lead, zinc, copper, silver and gold |
| 06/02/1981 | CA1102142A1 Recovery of useful materials from calcines |
| 05/26/1981 | US4269621 Recovering, gold, platinum, palladium, rhodium, ruthenium, osmium, and iridium from waste solutions |
| 05/12/1981 | US4267069 Using an aqueous copper salt solution |
| 04/14/1981 | US4261814 Vacuum pipestill operation |
| 03/24/1981 | US4257807 Precious metals recovery process |
| 03/17/1981 | US4256705 Leaching agglomerated gold - silver ores |
| 01/07/1981 | EP0020826A1 A hydrometallurgical process for recovering precious metals from anode slime |
| 01/06/1981 | CA1092784A1 Electroplating of gold |
| 11/25/1980 | CA1090141A1 Method for recovering silver and gold in solid silver or gold bearing matter |
| 09/16/1980 | US4223173 Nonionic crosslinked resin containing amine or phosphine groups adducted to borane; hydrogenating olefins, ketones or aldehydes |
| 07/15/1980 | CA1081469A1 Sodium sulfide leach process |
| 06/24/1980 | US4209501 Chlorination of sulfides in a fused salt bath |
| 06/17/1980 | US4208378 Desorption of gold from activated carbon |
| 04/30/1980 | EP0010381A1 Regeneration of activated carbon |
| 03/25/1980 | CA1074127A1 Process for precipitating precious metals from solutions which contain them |
| 03/25/1980 | CA1074126A1 Process for separating and recovering rhodium and iridium from their mixtures with other precious metals |
| 03/11/1980 | US4192723 Aqueous solution of monovalent gold and ammonium sulfite complex, process for the preparation thereof and electrolytic bath obtained therefrom for the plating of gold or gold alloys |
| 03/11/1980 | CA1073203A2 Apparatus for refining metal concentrates |
| 10/23/1979 | CA1064711A1 Extraction method for non-ferrous metals |
| 08/28/1979 | CA1061121A1 Separation of platinum group metals and gold |
| 08/07/1979 | US4163664 Process for precipitating precious metals from solutions which contain them |
| 05/22/1979 | US4155983 Activated carbon |
| 04/17/1979 | CA1052586A1 Process for oxidizing metal sulfides to elemental sulfur using activated carbon |
| 03/20/1979 | US4145212 Process for recovering silver and optionally gold from a solid starting material containing said metals |
| 12/26/1978 | US4131454 Process for recovering silver and gold from chloride solutions |
| 10/24/1978 | CA1040837A1 Process for the recovery of group 1-b metal halides from bimetallic salt complexes |
| 06/13/1978 | US4094668 Leaching, roasting, slurrying |
| 03/28/1978 | US4081271 Process for separating and recovering rhodium and iridium from their mixtures with other precious metals |
| 09/27/1977 | US4051220 Sodium sulfide leach process |
| 05/17/1977 | US4024228 Process for the preparation of anhydrous gold trichloride |
| 10/12/1976 | US3985552 Separation of platinum group metals and gold |
| 09/21/1976 | US3981782 Electroplating of gold and gold compounds therefor |
| 07/20/1976 | US3970737 Metal, particularly gold, recovery from adsorbed cyanide complexes |
| 06/29/1976 | US3966880 Method for producing alkali metal gold sulfite |
| 05/25/1976 | US3958985 Inorganic acids, heat treatment |
| 01/27/1976 | US3935006 Process for eluting adsorbed gold and/or silver values from activated carbon |
| 01/06/1976 | US3930969 Leaching |