| Patents for C01G 28 - Compounds of arsenic (688) |
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| 03/11/1986 | CA1201593A1 Selective removal of arsenical materials in the alkaline treatment of uranium and/or molybdenum containing ores, with a magnesium compound |
| 03/11/1986 | CA1201592A1 Process for extraction arsenic from solutions containing alkaline carbonate, sulfate and eventually hydroxyde, and at least one metal of a group containing vanadium, uranium and molybdenum |
| 02/25/1986 | US4572822 Leaching with sulfuric acid in sulfur dioxide atmosphere |
| 01/28/1986 | US4567207 Polymeric material adapted for physico-chemical separation of substances and method for producing same |
| 01/14/1986 | US4564509 Method and apparatus for improved gettering for reactant gases |
| 01/02/1986 | EP0166469A2 Method for removing arsenic from waste sulphuric acid |
| 10/15/1985 | US4547346 Process for the separation of arsenic from acid solutions containing it |
| 08/27/1985 | US4537628 Recovery of precious metals |
| 08/20/1985 | CA1192021A1 Detoxification of spent antimony halide catalyst and recovery of antimony values |
| 07/23/1985 | CA1190720A1 Process for removing heavy metal ions and arsenic from wet-processed phosphoric acid |
| 07/02/1985 | US4526855 Reacting lithium nitride, lithium halide, to form pressed body, heating, annealing |
| 07/02/1985 | US4526844 Rhombohedral nasicon compound and battery |
| 03/27/1985 | EP0134947A1 Method and apparatus for improved gettering for reactant gases |
| 03/13/1985 | EP0134077A2 Novel arsenate dopant compounds |
| 03/06/1985 | EP0133718A2 Inorganic cation exchangers and the process for their preparation |
| 03/05/1985 | US4503015 Method of removing arsenic from a copper electrolyte |
| 02/05/1985 | US4497780 Method and apparatus for removing arsenic from an arsenic-containing material |
| 01/22/1985 | US4495159 Extraction of arsenic in solution in liquors containing alkali metal carbonate, sulphate and possibly hydroxide, and at least one of the metals vanadium, uranium and molybdenum |
| 12/18/1984 | US4489046 Arsenic trioxide |
| 12/11/1984 | CA1179147A1 Process for the extraction of arsenic from solutions containing carbonates, sulfates, possibly an alcaline hydroxide and at least one of the metals vanadium, uranium and molybdenum |
| 11/27/1984 | US4485075 Addition of lime |
| 11/20/1984 | US4483845 Reduction of arsenic compound, then solvent extraction |
| 10/16/1984 | CA1176062A1 Recovery of copper from arsenical drosses |
| 08/21/1984 | US4466948 Process for removing heavy metal ions and arsenic from wet-processed phosphoric acid |
| 08/14/1984 | US4465546 Selenides, tellurides, arsenides, phosphides |
| 07/03/1984 | US4457897 Process for the selective dissolution of cobalt from cobaltite-pyrite concentrates |
| 06/12/1984 | US4454098 Also containing arsenic; digestion with alkali metal hydroxide, slurrying with water, adding ferric salt |
| 05/08/1984 | US4447405 Oxidation with hydrogen peroxide, ozone, or chromium |
| 04/25/1984 | EP0106118A1 Process for removing arsenic from a copper-bearing electrolyte |
| 03/20/1984 | US4438079 Method for manufacture of arsenious anhydride |
| 03/07/1984 | EP0102130A1 Method of growing monocrystalline bodies of volatile compounds |
| 02/01/1984 | EP0099514A1 Process for removing heavy metal ions and arsenic from wet-process phosphoric acid |
| 01/17/1984 | US4426237 Volatile metal oxide suppression in molecular beam epitaxy systems |
| 11/23/1983 | EP0094919A2 Ion exchange inorganic films made up of layered structure insoluble acid salts of tetravalent metals and/or their derivatives and process for the preparation of the same |
| 11/01/1983 | CA1156047A1 Recovery of uranium from material containing iron, arsenic and siliceous matter |
| 10/25/1983 | US4411874 Detoxification of spent antimony halide catalyst and recovery of antimony values |
| 10/11/1983 | US4409189 Recovery of tungsten from brines |
| 10/11/1983 | CA1154971A1 Method for working-up arsenic-containing waste products |
| 09/27/1983 | US4406864 Recovery of uranium from material containing iron, arsenic and siliceous matter |
| 09/20/1983 | US4405569 Hydrometallurgical process for extracting metal values from complex ores containing arsenic and sulfur |
| 08/30/1983 | US4401632 Solubilizing and reducing an aqueous slurry with sulfur dioxide; precipitation using sulfuric acid |
| 05/31/1983 | US4386020 Galvanic cells |
| 05/24/1983 | CA1146906A1 Treating cement copper cake by acid leach and caustic leach to produce zinc arsenate |
| 02/17/1983 | WO1983000509A1 Selective purification of arsenical material during an alkaline process for the treatment of a uranium-bearing and/or molybdenum-bearing mineral by means of a magnesium compound |
| 01/18/1983 | US4369164 Recovery of copper from arsenical drosses by ammonium arsenate leach |
| 01/11/1983 | CA1139466A1 Removal of arsenic from aqueous solutions |
| 12/28/1982 | US4366128 Removal of arsenic from aqueous solutions |
| 12/01/1982 | EP0065863A2 Method of producing ceramic-forming metal hydroxide and oxide powders |
| 11/02/1982 | US4357261 Method for manufacture of a composite copper-arsenic compound mixture |
| 10/28/1982 | WO1982003620A1 Method for extracting arsenic from solutions containing alcaline carbonates, sulphate, optionally hydroxide, as well as at least one of vanadium, uranium and molybdenum metals |
| 12/01/1981 | CA1113253A1 Process for the treatment of raw materials containing arsenic and metal |
| 11/03/1981 | US4298037 Method of shipping and using semiconductor liquid source materials |
| 09/17/1981 | WO1981002568A1 A method for working-up arsenic-containing waste products |
| 03/25/1981 | EP0025466A1 A process for the recovery of arsenic as zinc arsenate from cement copper cake and a process for the purification of an impure zinc electrolyte using zinc arsenate so obtained |
| 01/13/1981 | US4244927 Process for recovering arsenic compounds by sodium hydroxide leaching |
| 12/23/1980 | US4240826 Process for the recovery of arsenic as a zinc arsenate and its _utilization in the purification of zinc plant electrolytes |
| 11/04/1980 | US4231838 Method for flux growth of KTiOPO4 and its analogues |
| 09/16/1980 | US4223173 Nonionic crosslinked resin containing amine or phosphine groups adducted to borane; hydrogenating olefins, ketones or aldehydes |
| 09/02/1980 | US4220627 Process for the treatment of raw materials containing arsenic and metal |
| 08/19/1980 | US4218425 Leaching with arsenic acid lixiviant |
| 05/06/1980 | CA1076815A1 Method for removing arsenic from copper and/or nickel bearing aqueous acidic solutions by solvent extraction |
| 02/05/1980 | CA1071075A1 Method of cleaning surfaces |
| 01/29/1980 | CA1070504A1 Method for removing arsenic from copper electrolytic solutions or the like |
| 01/22/1980 | CA1070083A1 Lewis acid-fluorine compounds of carbon |
| 01/08/1980 | CA1069316A1 Treatment of ores or metallurgical by-products containing arsenic and antimony |
| 12/25/1979 | US4180551 Ion exchanging |
| 10/31/1979 | EP0004974A2 Process for producing a single crystal of KTiOPO4 or its analogues |
| 04/03/1979 | US4147571 Method for vapor epitaxial deposition of III/V materials utilizing organometallic compounds and a halogen or halide in a hot wall system |
| 01/30/1979 | CA1047233A1 Gas mixer for sublimation purposes |
| 01/16/1979 | US4134514 Liquid source material container and method of use for semiconductor device manufacturing |
| 12/05/1978 | US4128499 Lewis acid-fluorine compounds of carbon |
| 09/19/1978 | US4115512 Method for removing arsenic from copper and/or nickel bearing aqueous acidic solutions by solvent extraction |
| 08/22/1978 | US4108746 Irradiating to induce oxidation |
| 07/25/1978 | US4103000 Method for preparing copper arsenate compositions |
| 07/25/1978 | US4102976 Leaching with acid, adding arsenic and/or phosphorus |
| 07/18/1978 | US4101640 Production of OH3+ salts |
| 06/27/1978 | US4097273 Dissolving in morpholine, piperidine, or a primary or secondary amine, evaporation |
| 04/11/1978 | US4083924 Method of regenerating used contaminant-removing material |
| 12/27/1977 | US4065550 Reacting lithium perchlorate and potassium hexafluoro arsenate in an alkyl ester solvent |
| 11/22/1977 | US4059679 Modified zirconium phosphates |
| 10/11/1977 | US4053571 Process for purifying lithium hexafluoroarsenate |
| 07/05/1977 | US4034069 Method of preparing arsenic trifluoride |
| 01/25/1977 | US4005232 Coatings of metal phosphates on metals or glass |
| 11/16/1976 | US3992159 Process for purification by cryogenic sublimation |
| 09/21/1976 | US3981970 Method for the production of a zeolite material |
| 08/10/1976 | US3974265 Chlorine pentafluoride complexes |
| 04/20/1976 | US3951741 Process and apparatus for the synthesis of peptides by use of n-carboxyanhydrides |
| 04/06/1976 | US3949323 Crystals of (K, Rb, NH4)TiO(P, As)O4 and their use in electrooptic devices |