| Patents for C22B 21 - Obtaining aluminium (4,001) |
|---|
| 02/24/1981 | US4252776 Aluminum dross processing |
| 02/24/1981 | US4252774 Method of processing aluminous ores |
| 02/10/1981 | CA1095490A1 Process for lowering.. sodium in aluminium melts |
| 01/27/1981 | US4247325 pH Control during leaching of aluminum slags |
| 01/27/1981 | CA1094329A1 Method of carbothermically producing aluminum-silicon alloys |
| 01/20/1981 | US4245822 Process for the production of aluminium |
| 01/20/1981 | CA1093833A1 Reduction of stable oxides |
| 01/13/1981 | US4244926 Moving bed chlorination of bauxite and ilmenite |
| 01/06/1981 | US4243520 Method for separation of large sized salt containing minerals |
| 01/06/1981 | US4243411 Reduction of metal sulfides |
| 01/06/1981 | CA1092831A1 Method for the production of aluminum-silicon alloys |
| 01/06/1981 | CA1092787A1 Chlorination process for producing aluminum |
| 12/02/1980 | CA1090587A1 Apparatus and method for in-line degassing and filtration of molten metal |
| 11/27/1980 | WO1980002586A1 Pump for gasodynamic mixing of molten metal |
| 11/25/1980 | US4235627 Method and apparatus for the degassing of molten metal |
| 11/25/1980 | CA1090144A1 Stirring molten metal |
| 10/28/1980 | CA1088316A1 Ore halogenation process |
| 10/21/1980 | US4229182 Recovery of aluminum from composite propellants |
| 10/21/1980 | CA1088226A1 Concentration of hydrated aluminum oxide minerals by flotation |
| 10/15/1980 | EP0017285A1 Process for the recovery of metals from catalysts used in the hydrodesulfurization of hydrocarbons |
| 10/15/1980 | EP0017150A1 Apparatus for refining molten aluminium |
| 10/07/1980 | US4226632 Process for producing high-purity alumina and hydraulic cement |
| 10/07/1980 | US4226618 Carbothermic production of aluminium |
| 10/07/1980 | US4226588 Smelting furnace |
| 09/30/1980 | US4225544 Method for fabricating a sparger plate for use in degassing of molten metal |
| 09/30/1980 | CA1086506A1 Continuous recovery of base metal from insulated wire scrap |
| 09/30/1980 | CA1086504A1 Process for the production of alumina from mineral component of solid fuels |
| 09/23/1980 | US4224059 Carbothermic production of aluminium |
| 09/23/1980 | US4224055 Process for the production of aluminium |
| 09/23/1980 | US4224054 Process for the production of aluminium |
| 09/16/1980 | US4222830 Production of extreme purity aluminum |
| 09/09/1980 | US4221590 Purification of aluminum |
| 09/09/1980 | US4221589 Process for melting aluminum or its alloys in an induction melting furnace |
| 09/02/1980 | US4220629 Chlorination of ores with catalyzed metal chlorides |
| 09/02/1980 | CA1084974A1 Process for the production of aluminium |
| 08/06/1980 | EP0014165A1 Mechanically and physiochemically effective filtration block for liquid metals and alloys, and process for producing said block |
| 08/05/1980 | US4216010 Aluminum purification system |
| 07/29/1980 | CA1082466A1 Method and apparatus for treating aluminous metal skim material |
| 07/29/1980 | CA1082456A1 Apparatus for refining molten metal |
| 07/22/1980 | US4213599 Molten alumina slag containing combined carbon |
| 07/22/1980 | CA1082125A1 Production of aluminium |
| 06/03/1980 | CA1078626A1 Treatment of carbothermically produced aluminum |
| 05/29/1980 | WO1980001082A1 Purification process of molten aluminum |
| 05/20/1980 | US4203762 Process for separating and recovering aluminum and steel from bimetal scrap |
| 05/20/1980 | US4203581 Apparatus for refining molten aluminum |
| 05/20/1980 | CA1077724A1 Apparatus for filtering metal melts |
| 05/20/1980 | CA1077722A1 Method of removal of alkali and alkaline earth metals from light metal melts |
| 05/20/1980 | CA1077679A1 Production of aluminum chloride |
| 04/29/1980 | CA1076366A1 Aluminium extraction process |
| 04/22/1980 | CA1075899A1 Device for limiting surface oxidation of glowing hot metal dross |
| 04/15/1980 | CA1075437A1 Porous silicon oxynitride refractory shapes |
| 04/08/1980 | CA1075325A1 Plasma reactor and procedure for reduction of metal oxides |
| 03/25/1980 | CA1074128A1 Fluxless recovery of metallic aluminum from wastes |
| 03/18/1980 | US4193791 Concentration of hydrated aluminum oxide minerals by flotation |
| 03/04/1980 | US4191559 Passing fluxing gas therethrough |
| 02/26/1980 | CA1072299A1 Production of alumina from ores |
| 02/12/1980 | US4188207 Aluminum production |
| 02/06/1980 | EP0007884A1 Process and apparatus for treating a liquid metal or alloy by means of a solid and liquid flux, application to the treatment of aluminium, magnesium, or their respective alloys |
| 01/15/1980 | US4183745 Demagging process for aluminum alloy without air pollution |
| 01/09/1980 | EP0006453A1 Process for increasing the lifetime of flush gas lances with porous lance heads made of graphite and inertion cage used therefor |
| 12/25/1979 | CA1068486A Aluminum melting furnace |
| 12/18/1979 | US4179102 Apparatus for the degassing and filtration of molten metal |
| 12/04/1979 | US4177066 Method and apparatus for the removal of impurities from molten metal |
| 12/04/1979 | US4177065 Method for the degassing and filtration of molten metal |
| 12/04/1979 | US4177060 Reduction of stable oxides |
| 11/20/1979 | US4174826 Apparatus for lowering the concentration of sodium in aluminum melts |
| 11/13/1979 | CA1066026A1 Redox treatment of alunite ore |
| 11/13/1979 | CA1066025A1 Method of treating alunite ore |
| 10/09/1979 | CA1063776A1 Method for working-up shale |
| 10/02/1979 | US4169584 Gas injection apparatus |
| 09/04/1979 | US4166604 Mold for fabricating a sparger plate |
| 08/21/1979 | US4165235 Method for inline degassing and filtration of molten metal |
| 08/14/1979 | CA1060216A1 Treatment of aluminous material |
| 07/31/1979 | CA1059535A1 Ceramic foam filter |
| 07/03/1979 | US4159928 Process for production of aluminum |
| 07/03/1979 | US4159907 Method for melting aluminum scraps |
| 06/26/1979 | US4159310 Process for recovering aluminum and other metal values from fly ash |
| 06/26/1979 | US4159104 Apparatus for inline degassing and filtration of molten metal |
| 06/19/1979 | US4158632 Filter for use in filtration of molten metal |
| 05/29/1979 | CA1055257A1 Gas injection apparatus |
| 05/15/1979 | US4154972 Apparatus and procedure for reduction of metal oxides |
| 05/15/1979 | US4154689 Filtering and inline degassing of molten metal |
| 05/15/1979 | CA1054378A1 Reduction of mangenese |
| 05/08/1979 | US4153669 Removal of metals from waste materials that contain bimetallic salt complexes |
| 05/08/1979 | US4153452 Recovery of metals from bimetallic salt complexes |
| 05/01/1979 | US4152470 Method of making particles useful for removal of alkali and alkaline earth metals from light metal melts |
| 05/01/1979 | US4152141 Method of removal of alkali and alkaline earth metals from light metal melts |
| 04/03/1979 | US4147531 Method and apparatus for removing surface contaminants from metallic scrap |
| 03/27/1979 | US4146389 Thermal reduction process of aluminium |
| 03/13/1979 | US4144054 Process for the removal of impurities from aluminum melts |
| 03/06/1979 | CA1049795A1 Process for extracting alumina from alumina-containing ores |
| 02/20/1979 | CA1048790A1 Continuous reflux refining of metals |
| 02/06/1979 | US4138246 Process for lowering the concentration of sodium in aluminum melts |
| 02/06/1979 | US4138245 Process for the removal of impurities from aluminum melts |
| 01/30/1979 | US4137073 Method and apparatus for treating aluminous metal skim material and by-products of said method |
| 01/30/1979 | CA1047257A1 Process and device for the production of aluminium |
| 01/16/1979 | CA1046286A1 Process for removing alkali-metal impurities from molten aluminum |
| 01/09/1979 | CA1045826A1 Carbothermic production of aluminum |
| 12/19/1978 | US4130627 Process for recovering mineral values from fly ash |
| 12/19/1978 | CA1044469A1 Production of bauxite and aluminium chloride of low iron content |