Patents for C01F 7 - Compounds of aluminium (12,677)
01/1984
01/17/1984US4426363 Process for extracting alumina from aluminous ores
01/17/1984CA1160425A1 Preparation of dihydroxyaluminium sodium carbonate
01/11/1984EP0097892A1 Process for the hydrothermal decomposition of chemical wastes and residues with a high content of calcined aluminium oxides
01/10/1984US4425311 Production of a purified alumina-silica product and substantially pure aluminum trichloride from bauxites and clays
01/10/1984US4425310 Production of aluminum chlorides from bauxites and clays
01/10/1984US4425309 Production of a purified alumina-silica product and substantially pure aluminum trichloride from bauxites and clays
01/10/1984US4425308 Roasting, chlorination
01/04/1984EP0097539A1 Process for the manufacture of alumina spheres formed by droplet coagulation
12/1983
12/27/1983US4423013 Process for the purification of solutions containing alkali metal carbonate, sulphate, hydroxide or possibly hydrogen carbonate, and one at least of the metals vanadium, uranium and molybdenum
12/27/1983US4423009 Carbonate, sulphate and hydroxide or hydrogen carbonate
12/27/1983US4422946 Calcined α-alumina filter aids
12/20/1983US4421876 Resinous compositions containing modified alumina hydrate crystals
12/20/1983US4421726 Using fly ash from coal burning power plant
12/13/1983CA1158417A1 Removal of iron and titanium minerals from aluminum bearing materials by chlorination and beneficiation
12/07/1983EP0095783A2 Catalyzed aldol condensations
12/06/1983US4419394 Catalyst and method of making the same
11/1983
11/30/1983EP0094983A1 Process for removing transition metal ions from an aqueous solution with a reticular ion exchange resin containing a crystalline transition metal aluminate
11/24/1983WO1983004017A1 Thermal decomposition of aluminum chloride hexahydrate
11/22/1983US4416862 Process for the preparation of aluminium trichloride and silicon dioxide by chlorination of alumina with silicon tetrachloride
11/16/1983EP0094132A1 Luminescent screen
11/16/1983EP0094081A2 Thermal decomposition of aluminum chloride hexahydrate
11/15/1983US4415412 Dehydration of an aluminum compound using an acidic extractant; heating with alkali metal chlorides
11/10/1983WO1983003823A1 Method for fabricating ceramic materials
11/09/1983EP0093339A2 Process for the treatment of red mud
11/08/1983US4414115 Iron oxide coated with zinc sulfide as a filter aid
11/08/1983CA1156432A1 Process for receiving, storing and handling aluminum hydroxide wet hydrate
11/08/1983CA1156431A1 Method and apparatus for producing anhydrous alumina
11/02/1983EP0092778A1 Process for preparing basic aluminum carbonate gels substantially free from foreign anions and fibrous colloidal alumina monohydrate of a boehmite crystal lattice structure
11/02/1983EP0092562A1 Chlorination of an aluminous material
10/1983
10/26/1983EP0092028A2 Process for the winning of refractory raw materials with simultaneous elimination of organic substances from alkaline mother liquor of the Bayer process
10/25/1983US4411771 Process for hydrotreating heavy hydrocarbons and catalyst used in said process
10/18/1983US4410423 Separation of spent cathode carbon and alkaline ore
10/12/1983EP0090994A2 Process for the preparation of spherical alumina
10/12/1983EP0090946A1 Process for the preparation of dihydroxyaluminium sodium carbonate
10/11/1983CA1154932A1 Preparation of aluminum hydroxycarbonate gel
10/05/1983EP0090767A2 Process for the preparation of large crystalline alumina
10/05/1983EP0090109A1 The recovery of alkali metal catalyst constituents by the use of sulphurous acid in a coal conversion process
10/04/1983US4407735 Method of impregnating spheres of activated alumina for use in catalyst support with cerium
09/1983
09/28/1983EP0089353A1 Method for the selective chlorination of metal oxide mixtures of natural or synthetic origine.
09/27/1983CA1154234A1 Process for purifying solutions containing alkaline carbonates, sulfates, hydroxides or eventually hydrogen carbonates, and at least one of vanadium, uranium or molybdenum metals
09/27/1983CA1154233A1 Method for the manufacture of pure aluminum oxide from aluminum ore
09/27/1983CA1154232A1 Nitric acid reconstitution
09/27/1983CA1154231A1 Basic aluminum nitrate crystallization
09/27/1983CA1154230A1 High pressure chlorination of alpha-alumina
09/21/1983EP0088988A1 Process for the production of hydrogen cyanide with simultaneous production of aluminium nitride
09/21/1983EP0088848A2 Process for the preparation of a stable sol or a dispersible gel
09/20/1983US4405595 Immersion aluminum hydroxide gel spheres in lithium hydroxide, and sintering
09/13/1983CA1153749A1 Process for producing a crystalline silico-aluminate of type a, with a high capacity for absorption of water, and in particular of type 4a, and the resulting product
09/07/1983EP0087852A1 Hydraulic fracturing propping agent
09/06/1983US4402932 Thermal decomposition of aluminum chloride hexahydrate
09/06/1983US4402924 Preparation of high surface area metal fluorides and metal oxyfluorides, especially aluminum fluoride extrudates
09/06/1983CA1153353A1 Process for the preparation of alumina agglomerates
09/06/1983CA1153187A1 Method for preparing alumina, least in part as extra fine boehmite
08/1983
08/30/1983US4401574 Clarifying waste water with basic alumunum chorides
08/23/1983US4400431 Magnesium aluminum spinels
08/16/1983US4399119 Oil drop method
08/16/1983US4399113 Process for treating a gas containing a fluorine compound
08/10/1983EP0085592A1 Boehmites and extremely pure pseudoboehmites, and process for their manufacture
08/10/1983EP0085287A1 A method for recovering useful products from waste products obtained when manufacturing aluminium fluoride
08/09/1983US4397822 Process for the recovery of alumina from fly ash
07/1983
07/26/1983CA1150711A1 Crystallising of a zeolithe during industrial manufacturing processes
07/26/1983CA1150517A1 Method of decreasing the organic substance of alum earth production cycle performed according to the bayer technology
07/21/1983WO1983002444A1 A method for recovering useful products from waste products obtained when manufacturing aluminium fluoride
07/20/1983EP0083974A1 A process for the production of sintered spheres
07/19/1983US4394455 Spinel slip casting composition and articles
07/19/1983US4394368 High temperature hydrolysis of aluminum sulfate solutions
07/19/1983CA1150063A1 Method of acid leaching of silicates
07/12/1983US4392987 Alumina spheroids with controlled small particle size and a process for producing them
07/12/1983US4392980 Ion exchangers, spinel precursors
07/12/1983US4392979 Complexing, ion exchanging, spinels
07/12/1983US4392961 Magnesium aluminate anion exchangers
07/06/1983EP0083275A1 Process for the preparation of aluminas of high purity from impure solutions of aluminium chloride
07/05/1983CA1149178A1 Precipitation of metal values from organic media
06/1983
06/28/1983US4390508 Solvent extraction, thermal decomposition of ammonium or potassium
06/28/1983US4390456 Automobile exhaust systems
06/28/1983US4390445 Aluminium chloride composition and a method for its manufacture
06/28/1983US4390431 Process for treating aqueous streams containing aluminum
06/28/1983CA1148724A1 Process for producing coarse grains of aluminium hydroxide
06/21/1983US4389385 Production of porous gels and ceramic materials
06/14/1983US4388280 Extraction of aluminum from clay
06/14/1983US4388208 Aluminium sulphate composition for water-purifying, paper-sizing and plant dewatering purposes and a method for producing the composition
06/14/1983CA1148168A1 Agent for promoting filtration dehydration of metal hydroxide slurry
06/07/1983US4387085 Process for preparing high surface area alumina
05/1983
05/31/1983US4385964 By addition of titanium tetrachloride
05/31/1983US4385903 Agent for promoting filtration dehydration of metal hydroxide slurry
05/31/1983CA1147128A1 Process for transforming hydrargilite into boehmite
05/11/1983WO1983001612A1 Chlorination of an aluminous material
05/03/1983US4382010 Scrubbing with sodium aluminate-sodium oxide maxture
04/1983
04/26/1983US4381349 Alumina compounds in ion exchange resins
04/14/1983WO1983001249A1 Method for the selective chlorination of metal oxide mixtures of natural or synthetic origine
04/12/1983CA1144699A1 Alumina compounds in ion exchange resins
04/12/1983CA1144454A1 Coarse crystalline alumina and method for its production
04/06/1983EP0076094A2 Extraction
04/05/1983US4379134 Process of preparing high purity alumina bodies
03/1983
03/29/1983US4378337 Still heating process for purifying aluminum chloride
03/29/1983CA1143694A1 Method of winning aluminum metal from aluminous ore
03/22/1983US4377566 Novel process for the preparation of high purity alumina from ammonium alum
03/15/1983EP0059212A4 Magnesium aluminium spinels.
03/15/1983EP0050640A4 Process and equipment for the performance of recipitate forming reactions by using an ion-exchange auxiliary phase.
03/02/1983EP0073120A2 Coating of substrates