| Patents for C22B 21 - Obtaining aluminium (4,001) |
|---|
| 12/05/1978 | US4128415 Aluminum scrap reclamation |
| 11/21/1978 | US4126673 Method for processing dross |
| 11/07/1978 | US4124506 Method for the filtration of molten metal in a crucible type furnace |
| 10/31/1978 | CA1041305A1 Recovery of gallium |
| 10/31/1978 | CA1041304A1 Process for recovering valuable metals from sulfate solutions |
| 10/24/1978 | US4121810 Aluminium dross treatment apparatus |
| 10/24/1978 | CA1040868A1 Process for recovery of valuable metals from solution using neutralization by lime or limestone |
| 10/17/1978 | US4120934 Crushing, leaching, roasting |
| 09/12/1978 | US4113241 Apparatus for the filtration of molten metal in a crucible type furnace |
| 09/05/1978 | US4111686 Forming a cyanide complex, reduction with hydrogen |
| 08/22/1978 | US4108741 Process for production of aluminum |
| 08/22/1978 | CA1036826A1 Solvent extraction (lix) of aluminum |
| 08/15/1978 | US4106928 Free of aluminum carbides, multistage, manganese and silicon and their chlorides, oxidation, reduction, circulation |
| 08/15/1978 | US4106759 Device and method for the introduction of gases into reaction vessels containing liquids |
| 07/11/1978 | US4099965 Method of using MgCl2 -KCl flux for purification of an aluminum alloy preparation |
| 07/11/1978 | US4099959 Process for the production of aluminium |
| 06/27/1978 | US4097270 Reacting with silica to form magnesium oxide |
| 06/27/1978 | US4097027 Device and process for limiting surface oxidation of glowing hot metal dross |
| 05/30/1978 | US4092153 Filtering and inline degassing of molten metal |
| 05/23/1978 | US4090916 Salt cake evaporator apparatus |
| 05/02/1978 | US4087080 Apparatus for filtering metal melts |
| 04/04/1978 | US4082833 Carbo-chlorination to produce aluminum chloride and silicon chloride; sulfur or sulfur compound as promoter |
| 03/28/1978 | US4081371 Filtering of molten metal |
| 02/21/1978 | US4075303 Method of preparation of ceramic foam |
| 02/21/1978 | US4075067 Production of aluminium |
| 02/14/1978 | US4073644 Salt cake processing method and apparatus |
| 02/07/1978 | US4072512 Charge for manufacturing aluminium-silicon alloys |
| 01/17/1978 | US4069058 Porous silicon oxynitride refractory shapes |
| 01/10/1978 | US4067731 Purification of aluminum and its alloys |
| 11/29/1977 | US4060408 Melting process |
| 11/29/1977 | US4060118 Recovering chloride flux salts for aluminum |
| 11/22/1977 | US4059673 Production of bauxite and aluminium chloride of low iron content |
| 11/01/1977 | US4056586 Method of preparing molten metal filter |
| 10/25/1977 | US4055334 Recycle burner system |
| 10/11/1977 | US4053303 Method of carbothermically producing aluminum-silicon alloys |
| 10/04/1977 | US4052199 Gas injection method |
| 10/04/1977 | US4052198 Method for in-line degassing and filtration of molten metal |
| 09/27/1977 | US4050925 Process for the production and use of activated alumina in refining steel |
| 09/20/1977 | US4049425 Reducing oxidic aluminum material with carbon and a catalyst of iron, nickel andor cobalt |
| 09/20/1977 | US4049248 Dynamic vacuum treatment |
| 09/06/1977 | US4046558 Method for the production of aluminum-silicon alloys |
| 08/30/1977 | US4044955 Recovery of aluminum from aluminum-glass cloth residues |
| 08/23/1977 | US4043802 Purification, crystallization |
| 08/09/1977 | US4040820 Processing aluminum skim |
| 08/09/1977 | US4040610 Apparatus for refining molten metal |
| 08/02/1977 | US4039647 From aluminum oxide, reducing agent and chlorine, iron, chromium, copper, europium, cerium |
| 08/02/1977 | US4039173 Aluminum dross recovery method |
| 07/12/1977 | US4035180 Catalytic process for the reduction of aluminum chloride by manganese |
| 07/05/1977 | US4033760 Aluminum nitrides, oxides |
| 07/05/1977 | US4033757 Carbothermic reduction process |
| 06/28/1977 | US4032613 Removal of iron from aluminum nitrate |
| 06/28/1977 | US4032124 Apparatus and method for in-line degassing and filtration of molten metal |
| 06/21/1977 | US4030914 Melting under a cover flux containing calcium chloride |
| 06/14/1977 | US4029499 And alumina from bauxite |
| 05/24/1977 | US4025335 Method for the recovery of useful metallic components |
| 05/17/1977 | US4024212 Ceramic foam and method of preparation |
| 05/17/1977 | US4024056 Filtering of molten metal |
| 05/10/1977 | US4022638 Continuous recovery of base metal from insulated wire scrap |
| 05/10/1977 | US4022614 Fluoride flux |
| 05/03/1977 | US4021026 Protection for externally heated cast iron vessel used to contain a reactive molten metal |
| 04/05/1977 | US4016238 Process for the obtention of alumina and phosphate values by the alkaline decomposition of silica-containing aluminum phosphate ores |
| 04/05/1977 | US4016075 Adding ammonium hydroxide |
| 04/05/1977 | US4016003 Beneficiation of metal scrap |
| 03/08/1977 | US4010935 High efficiency aluminum scrap melter and process therefor |
| 03/01/1977 | US4010023 Utilization of formerly wasted slag |
| 02/22/1977 | US4008884 Stirring molten metal |
| 02/15/1977 | US4007923 Molten metal filter |
| 02/15/1977 | US4007771 Process for the production of aluminum |
| 02/08/1977 | US4007036 Method of smelting aluminum |
| 02/01/1977 | US4006215 Recovering iron, nickel, or cobalt from sulfate solution |
| 01/18/1977 | US4003738 Method of purifying aluminum |
| 01/18/1977 | US4003560 Gas-treatment plant for molten metal |
| 01/11/1977 | US4002468 Scrap smelting process |
| 12/28/1976 | US3999980 Melting aluminum scraps |
| 12/14/1976 | US3997650 Process for extracting alumina from alumna-containing ores |
| 12/14/1976 | US3997336 Metal scrap melting system |
| 12/07/1976 | US3996412 Aluminum melting furnace |
| 12/07/1976 | US3996333 Method for dehydrating ores |
| 10/05/1976 | US3984234 Method and apparatus for circulating a molten media |
| 09/14/1976 | US3980742 Protection for externally heated cast iron vessel used to contain a reactive molten metal |
| 08/17/1976 | US3975187 Treatment of carbothermically produced aluminum |
| 08/10/1976 | US3973763 System for melting metal |
| 07/27/1976 | US3971653 Forming aluminum carbide from aluminum oxide and carbon then decomposing |
| 06/29/1976 | US3966909 Solvent extraction of aluminum |
| 06/08/1976 | US3962081 Molten metal |
| 06/08/1976 | US3961778 Installation for the treating of a molten metal |
| 06/01/1976 | US3961030 Fluorination to aluminum trifluoride followed by pyrolysis |
| 05/25/1976 | US3959154 Method and composition for retarding the evaporation of ammonia and amines |
| 05/25/1976 | US3958982 Aluminum extraction process |
| 05/25/1976 | US3958981 Process for degassing aluminum and aluminum alloys |
| 05/25/1976 | US3958980 Process for removing alkali-metal impurities from molten aluminum |
| 05/25/1976 | US3958979 Titanium, melting, fluoride flux |
| 05/11/1976 | US3956454 Process for producing aluminum trichloride |
| 05/11/1976 | US3955970 Continuous melting of aluminum scrap |
| 05/04/1976 | US3954443 Aluminum process |
| 04/13/1976 | US3950162 Reduction to manganese metal using metal transporting compounds |
| 03/30/1976 | US3947363 Ceramic foam filter |
| 03/23/1976 | US3945575 Recovery of salvageable components from waste materials |
| 02/17/1976 | US3939079 Filter medium which permits increased amount of filtration |
| 02/17/1976 | US3938988 Method for producing aluminum metal from its salts |