| Patents for C22B 21 - Obtaining aluminium (4,001) |
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| 06/19/1984 | CA1169248A1 Apparatus for refining molten metal |
| 06/19/1984 | CA1169247A1 Apparatus for refining molten aluminum |
| 06/05/1984 | US4452634 Method of stirring molten metal and refractory cylinder for the purpose |
| 05/29/1984 | US4451287 Flux in recovery of aluminum in reverberatory furnace |
| 05/16/1984 | EP0108178A1 Removal of alkali metals and alkaline earth metals from molten aluminium |
| 05/08/1984 | US4447906 Arc furnace for producing aluminum |
| 05/02/1984 | EP0107345A2 Improved alumina molten metal filters |
| 05/02/1984 | EP0107310A1 Production of a purified aluminum monochloride from alumina, bauxites and clays and the subsequent production of aluminum metal |
| 05/01/1984 | US4445934 Smelting alumina, combustion of carbon material |
| 04/24/1984 | US4444585 Process for producing metals in a very high state of purity in respect of eutectic elements |
| 04/17/1984 | US4443004 Device for the treatment of a stream of aluminum or magnesium-based liquid metal or alloy during its passage |
| 04/10/1984 | US4441920 Method for the thermal production of metals |
| 04/10/1984 | CA1165117A1 Gas injection for the treatment of a molten metal bath |
| 03/27/1984 | US4439145 Aluminum furnace and preheater therefor |
| 03/20/1984 | US4437887 Production of aluminum metal from alumina bauxites and clays by firstly producing a purified aluminum monochloride |
| 03/13/1984 | US4436550 Energy efficient |
| 02/21/1984 | US4432791 Using combustion product of gas-fuel burner in tubes to heat exchange with air for burner, and heating solid aluminum |
| 02/14/1984 | CA1162055A1 Method of carbothermically producing aluminum |
| 02/08/1984 | EP0099948A1 Process for producing high-purity aluminum |
| 02/08/1984 | EP0099894A1 Electrocatalytic energy conversion and chemicals production |
| 02/07/1984 | US4430120 Reducing agent, alkali chloride, coking, heating, iron chloride, aluminum monochloride, alkali silicate, aluminum trichloride |
| 02/07/1984 | US4430119 Selective removal of magnesium in the consumption of aluminum used beverage container scrap |
| 02/01/1984 | EP0099858A1 Aluminium purification process |
| 02/01/1984 | EP0099435A1 Method of stirring molten metal and refractory cylinder for the purpose |
| 01/31/1984 | US4428912 From chlorination of aluminum in clay or bauxite |
| 01/24/1984 | US4427443 Process and apparatus for automating a vacuum degasification cycle for metal alloys |
| 01/24/1984 | US4427185 Method and apparatus for gaseous cleaning of aluminum |
| 01/17/1984 | US4426287 Molten metal filtering device |
| 01/17/1984 | US4426068 Rotary gas dispersion device for the treatment of a bath of liquid metal |
| 01/11/1984 | EP0097993A1 Process for producing an aluminium-silicon alloy from leucite |
| 01/10/1984 | CA1160059A1 Method and installation for scrubbing the flues for recovering the salts in a process for the production of secondary aluminum |
| 12/20/1983 | CA1158866A1 Separation of aluminum from articles composed of aluminum bonded to ferrous metal |
| 12/13/1983 | CA1158417A1 Removal of iron and titanium minerals from aluminum bearing materials by chlorination and beneficiation |
| 12/06/1983 | US4419126 Aluminum carbide |
| 12/06/1983 | US4418892 Aluminum furnace skim recovery system |
| 12/06/1983 | US4418460 Method and apparatus for separating a lid from a container |
| 11/29/1983 | US4417923 Halogenated hydrocarbons and sodium or potassium chloride |
| 11/08/1983 | CA1156493A1 Molten metal sampling device |
| 11/08/1983 | CA1156472A1 Method and apparatus for the degassing of molten metal |
| 11/02/1983 | EP0092983A1 Molten metal stirring equipment |
| 10/25/1983 | US4411747 Process of electrolysis and fractional crystallization for aluminum purification |
| 10/25/1983 | US4411695 Mixing, agitation with oxidizing gases |
| 10/12/1983 | EP0091386A1 Process for purifying metals by segregation |
| 10/11/1983 | US4409021 Slag decarbonization with a phase inversion |
| 10/05/1983 | EP0090750A1 Process for obtaining very high purity aluminium in entectic elements |
| 10/04/1983 | CA1154600A1 Energy efficient production of aluminum by carbothermic reduction of alumina |
| 09/20/1983 | CA1153895A1 Process for purifying aluminum |
| 09/06/1983 | US4402741 Process for the precise and continuous injection of a halogenated derivative in the gaseous state into a liquid metal |
| 09/01/1983 | WO1983002958A1 Method and apparatus for submerging, entraining, melting and circulating metal charge in molten media |
| 08/30/1983 | US4401467 Continuous titanium process |
| 08/30/1983 | US4401295 Apparatus for treating molten metal |
| 08/30/1983 | CA1153019A1 Molten metal filter |
| 08/30/1983 | CA1152751A1 Vortex melting system |
| 08/09/1983 | US4397687 Horizontal and vertical agitation |
| 08/09/1983 | CA1151429A1 Process for beneficiation of oxidic ores |
| 08/04/1983 | WO1983002605A1 Electrocatalytic energy conversion and chemicals production |
| 07/26/1983 | US4394978 Grinding and separation into powders of metal and metal oxide |
| 07/20/1983 | EP0083936A2 Metal treatment system |
| 07/19/1983 | US4394167 Method of carbothermically producing aluminum |
| 07/19/1983 | US4394166 Scrap metal recovery process |
| 07/12/1983 | US4392888 Metal treatment system |
| 07/05/1983 | US4391918 Ceramic foam filter and aqueous slurry for making same |
| 06/28/1983 | US4390431 Process for treating aqueous streams containing aluminum |
| 06/28/1983 | US4390364 Removal of fine particles from molten metal |
| 06/21/1983 | CA1148363A1 Carbothermic production of aluminium |
| 06/14/1983 | US4388280 Extraction of aluminum from clay |
| 06/14/1983 | US4388107 Minimum-energy process for carbothermic reduction of alumina |
| 06/07/1983 | US4386956 Metal recovery process from aluminum dross |
| 06/07/1983 | US4386764 Apparatus for submerging, entraining, melting and circulating metal charge in molten media |
| 05/31/1983 | US4386057 Reacting magnetic fly ash with alkali to precipitate aluminosilicate hydrate salts soluble with mineral acid |
| 05/31/1983 | US4385930 In electric arc furnace with gas flow separators-which permit fluid flow |
| 05/24/1983 | US4384888 Treating molten aluminum |
| 04/20/1983 | EP0077282A1 Installation for the continuous treatment of liquid metals or liquid metal alloys in the form of magnesium or aluminium |
| 04/13/1983 | EP0076781A2 Filter medium in the form of a stable porous body |
| 04/12/1983 | US4379718 Process for separating solid particulates from a melt |
| 04/12/1983 | CA1144378A1 Process for decreasing the contaminant content of aluminium melts and aluminium alloy melts |
| 04/06/1983 | EP0075971A2 Process for preparing slag from aluminium melts |
| 04/05/1983 | CA1143952A1 Process for recovering metals from catalysts for the hydrodesulfurization of hydrocarbons |
| 03/30/1983 | EP0074978A1 Ceramic filter, method for manufacturing and utilizing this filter |
| 03/29/1983 | CA1143694A1 Method of winning aluminum metal from aluminous ore |
| 03/09/1983 | EP0073729A1 Stirring equipment for the dispersion of gas during the treatment of metal baths |
| 03/01/1983 | CA1141968A2 Process for recovering aluminum and other metals from fly ash |
| 02/22/1983 | CA1141538A1 Molten metal and alloy filtration body with mechanical and physico chemical action |
| 02/17/1983 | WO1983000508A1 Treating molten aluminum |
| 02/16/1983 | EP0071679A1 Production of aluminium and uranium products |
| 02/15/1983 | US4373950 Reduction of dendrites at interface of solid and liquid phase with ultrasonic vibrations to release impurities |
| 02/15/1983 | US4373704 Apparatus for refining molten metal |
| 02/15/1983 | CA1141170A1 Aluminum purification system |
| 02/08/1983 | US4372541 Apparatus for treating a bath of liquid metal by injecting gas |
| 01/20/1983 | WO1983000165A1 A furnace for melting metal swarf |
| 01/12/1983 | EP0069434A1 Apparatus for refining molten metal |
| 01/11/1983 | US4368274 Method for removing aluminum from polyethylene teraphthalate (PET) bottle scrap |
| 01/11/1983 | US4368070 Method for scrubbing the flues and for recovering _the salts in a process for the production of secondary aluminum |
| 01/11/1983 | CA1139420A1 Probes for the ultrasonic treatment or inspection of molten aluminum |
| 01/05/1983 | EP0068901A1 A furnace for melting metal swarf |
| 01/04/1983 | US4366721 Molten metal sampling device |
| 01/04/1983 | CA1138649A1 Process for recovering aluminum and other metals from fly ash |
| 12/28/1982 | US4365993 Recovery of coated aluminium scrap |
| 12/28/1982 | CA1138374A1 Production of extreme purity aluminum |
| 12/14/1982 | CA1137523A1 Ceramic porous body |