| Patents for C01G 21 - Compounds of lead (978) |
|---|
| 06/12/1984 | US4454363 Oxidation catalyst |
| 06/12/1984 | CA1169122A1 Process for recovering lead and lead-compounds from scrap lead-acid accumulators |
| 05/09/1984 | EP0107918A1 A method of synthesizing high surface area unagglomerated noble metal pyrochlore compounds |
| 04/17/1984 | US4443253 Recovery of zinc from zinc containing sulphidic materials |
| 04/03/1984 | US4440670 Lead or bismuth-iridium or ruthenium oxides |
| 02/01/1984 | EP0099514A1 Process for removing heavy metal ions and arsenic from wet-process phosphoric acid |
| 01/17/1984 | CA1160609A1 Method and a device for manufacturing partially oxidised lead dust |
| 12/21/1983 | EP0096499A1 Recovery of zinc from zinc-containing sulphidic material |
| 11/15/1983 | US4415531 Semiconductor materials |
| 11/08/1983 | CA1156471A1 Process for the treatment of solutions of lead chloride |
| 11/01/1983 | US4412658 Method and a device for manufacturing partially oxidized lead dust |
| 11/01/1983 | CA1156048A1 Process for the recovery of lead and silver from minerals and process residues |
| 10/12/1983 | EP0091043A1 Method of separating heavy metal compounds from intermediate products of phosphatic fertilizer manufacture |
| 09/28/1983 | EP0089842A2 Lead acid electric storage cell and a positive electrode therefor |
| 09/20/1983 | CA1153897A1 Hydrometallurgical process for the recovery of lead |
| 09/07/1983 | EP0088006A1 Process for the preparation of porous products based on cobalt fluoride or lead fluoride |
| 08/17/1983 | EP0086056A1 Process for preparation of ultrapure thorium fluoride |
| 06/14/1983 | US4388210 Used for anodes in batteries |
| 05/24/1983 | US4384683 Crushing, rinsing, concurrent low-temperature drying and crushing; classifying particle sizes |
| 03/22/1983 | US4377555 Removal of metal from solution |
| 03/17/1983 | WO1983000869A1 Lead-containing composite metal oxide precursor composition, and process for its preparation |
| 03/15/1983 | EP0050640A4 Process and equipment for the performance of recipitate forming reactions by using an ion-exchange auxiliary phase. |
| 02/08/1983 | US4372782 Recovery of lead and silver from minerals and process residues |
| 10/05/1982 | US4352786 Treatment of copper refinery anode slime |
| 07/14/1982 | EP0056001A2 Chemical process on the surface of a rotating body with subsequent discharge of the reaction product |
| 06/22/1982 | US4336236 Double precipitation reaction for the formation of high purity basic lead carbonate and high purity normal lead carbonate |
| 06/22/1982 | CA1125994A1 Chemical process on the surface of a rotating body |
| 06/15/1982 | CA1125477A1 Production of lead monoxide from lead sulfate with acetic acid |
| 05/25/1982 | CA1124035A1 Production of lead monoxide from lead sulfate with acidic ammonia acetate |
| 05/05/1982 | EP0050640A1 Process and equipment for the performance of recipitate forming reactions by using an ion-exchange auxiliary phase |
| 04/13/1982 | US4324768 Reaction of lead monoxide with acid in presence of hydroxylamine salt |
| 03/16/1982 | CA1119775A1 Process for preparation of lead compounds |
| 01/19/1982 | US4311570 Chemical process on the surface of a rotating body |
| 01/12/1982 | CA1116002A1 Electrophotographic material containing tetragonal lead monoxide and method of manufacturing same |
| 12/30/1981 | EP0042702A1 Process for the recovery of lead and silver from minerals and process residues |
| 12/08/1981 | US4304052 Drying intumescent material |
| 12/01/1981 | CA1113224A1 Process for the preparation of lead chloride from lead salts, sulphate or carbonate, containing foreign metals |
| 11/11/1981 | EP0039478A1 Process and apparatus for the production of technical lead oxide |
| 10/29/1981 | WO1981003016A1 Process and equipment for the performance of precipitate forming reactions by using an ion-exchange auxiliary phase |
| 10/28/1981 | EP0038517A1 Process and apparatus for the production of partially oxidized lead dust |
| 10/27/1981 | US4297183 Process for the treatment of solutions of lead chloride |
| 10/27/1981 | CA1111228A1 Halogenation of lead sulfide |
| 10/14/1981 | EP0037546A1 Process for the preparation of dust-free and fluid-like lead-containing compounds |
| 09/15/1981 | CA1108867A1 Hydrometallurgical process for the treatment of sulphidized compounds containing lead |
| 09/08/1981 | US4288423 Method of recovering metallic tellurium |
| 06/30/1981 | US4276084 Leaching with cupric chloride |
| 06/16/1981 | US4273746 Desulfation of battery mud |
| 06/09/1981 | CA1102525A1 Chlorides of lead, zinc, copper, silver and gold |
| 06/02/1981 | US4271244 Cathode of nonstoichiometric lead oxide |
| 06/02/1981 | CA1102347A1 Removal of metal from solution |
| 05/26/1981 | US4269811 Treating battery mud with ammonium carbonate; decomposition; purification of lead oxide using acetic acid and then carbon dioxide; decomposition |
| 05/26/1981 | US4269810 Adding an aqueous solution of an alkali metal salt or hydroxide |
| 05/06/1981 | EP0027992A1 Thermostable lead white, process for its preparation and articles of thermoplastic and elastic polymers pigmented by it |
| 04/07/1981 | CA1098715A1 Purifying molybdenum flotation concentrates |
| 03/11/1981 | EP0024987A1 Process for the treatment of lead chloride solutions |
| 01/07/1981 | EP0021809A1 Chloride leaching |
| 09/02/1980 | US4220628 Production of lead monoxide from lead sulfate with acidic ammonium acetate |
| 08/26/1980 | CA1084505A1 Certain sulfonamidoquinolines, metal complexes thereof, and solutions containing such sulfonamidoquinolines and metal complexes |
| 08/26/1980 | CA1084242A1 Lead monoxide and process for preparation thereof |
| 06/24/1980 | US4209501 Chlorination of sulfides in a fused salt bath |
| 06/24/1980 | US4209419 Certain sulfonamidoquinolines, metal complexes thereof, and solutions containing such sulfonamidoquinolines and metal complexes |
| 11/06/1979 | US4173623 Fluidized bed |
| 10/23/1979 | CA1064708A1 Process for separation and recovery of metal values from sulfide ore concentrates |
| 09/05/1979 | EP0003907A1 Chemical process on the surface of a rotating body, the subsequent discharging of the reaction product and the reactor used |
| 09/05/1979 | EP0003906A1 Chemical process on the surface of a rotating body with subsequent discharge of the reaction product |
| 10/24/1978 | US4121933 X-ray electrophotographic recording material and method of manufacturing same |
| 09/26/1978 | US4117104 Milling metallic lead and oxygen |
| 07/18/1978 | US4101452 Photosensitizing, persulfate, thiourea, lead acetate and sodium hydroxide |
| 07/11/1978 | US4100163 Substituted 8-sulfonamidoquinolines |
| 04/11/1978 | US4083921 Purifying molybdenum flotation concentrates |
| 08/09/1977 | US4041127 Method of treating the fluorine-containing mud produced by the acid polishing of lead glass so as to form basic lead carbonate |
| 05/17/1977 | US4024055 Lead oxide |
| 04/26/1977 | US4019950 Hydrothermal; lead carbonate from the carbonate or basic carbonate; alkali metal bicarbonate |
| 03/01/1977 | US4010249 From water |
| 09/14/1976 | US3980752 Hydrometallurgical |
| 05/25/1976 | US3959453 Lead dioxide |
| 05/11/1976 | US3956004 Ceramics, lead oxide, silicon dioxide, roasting |
| 01/20/1976 | US3933973 Treatment of lead sulphide bearing material |