| Patents for C01F 7 - Compounds of aluminium (12,677) |
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| 05/03/1989 | EP0314166A1 Process for the production of monodisperse ceramic powders |
| 05/03/1989 | CN1032650A Method of prepg. aluminium hydroxide |
| 05/02/1989 | US4826606 Manufacture and use of polymer modified aluminum hydroxide and basic aluminum sulfate |
| 04/26/1989 | CN1032554A Process for recovtry of gallium using liquid-liquid extraction |
| 04/26/1989 | CN1032512A Bonded abrasives |
| 04/20/1989 | WO1989003365A1 Continuous process for production of fine particulate ceramics |
| 04/18/1989 | US4822593 Chromatographic packing |
| 04/18/1989 | US4822592 Reduced particle sizes; for ceramics which can be sintered at lower temperatures |
| 04/18/1989 | US4822421 Thixotropic cement compositions |
| 04/18/1989 | CA1252606A1 Process for the production of an aluminum trihydroxide of large and regular particulates |
| 04/11/1989 | US4820498 Method for producing substantially pure alumina material |
| 04/11/1989 | CA1252344A1 Particles, modified at their surface by hydrophilic and hydrophobic groups |
| 04/06/1989 | WO1989002869A1 Process for preparing metallic oxides |
| 04/05/1989 | EP0310554A1 Process for the reduction of lye impurities in the Bayer process |
| 04/05/1989 | EP0310553A1 Process for the reduction of lye impurities in the Bayer process |
| 04/05/1989 | EP0309509A1 Process for reducing the impurities in lyes in the bayer process |
| 04/05/1989 | CN2035269U Convection type vertical furnace for al ore powder heat decomposition |
| 04/05/1989 | CN1032150A Process for producing flocculant of polymeric aluminium chloride |
| 04/04/1989 | US4818515 Alpha-alumina in the form of spherical non-aggregated particles having a narrow size distribution and sizes below 2 microns and process for preparing same |
| 04/04/1989 | US4818512 Activated aluminum chlorhydroxide |
| 04/04/1989 | US4818499 Apparatus for the decomposition of sodium aluminate liquor for the production of alumina |
| 04/04/1989 | CA1251917A1 Clarification of bayer process liquors |
| 03/29/1989 | EP0309312A1 Process for the recuperation of gallium by liquid-liquid extraction |
| 03/29/1989 | EP0308937A2 Activated aluminum chloride hydroxide |
| 03/28/1989 | US4816142 Process and apparatus for grain-sizing in alumina hydrate slurry |
| 03/28/1989 | US4816122 Preparation of aluminum fluoride from scrap aluminum cell potlinings |
| 03/28/1989 | CA1251894A1 Silicon and/or fluorine treated alumina |
| 03/23/1989 | WO1989002344A1 Bonded abrasive |
| 03/22/1989 | EP0307674A2 Hexaammine aluminium iodide monoammine, and method for its preparation |
| 03/22/1989 | EP0307669A2 Process for preparing ammine salts of aluminium iodide |
| 03/21/1989 | US4814106 Manufacture of a basic metal hydroxysulfate complex in solid form |
| 03/16/1989 | DE3729391A1 Process for the production of powder material |
| 03/15/1989 | EP0306540A1 Process and plant for producing energy from toxic wastes with simultaneous disposal of the latter |
| 03/15/1989 | CN1031690A Process for producing sandish aluminium oxide by carbonating decomposition |
| 03/15/1989 | CN1031689A Process for producing sandy alumina through continuous stirring and decomposition of seed |
| 03/15/1989 | CN1031688A Continuous desiliconizing process of crude liquor of sodium aluminate by indirect heating |
| 03/14/1989 | US4812245 Thickeners for hydrocarbon oils |
| 03/14/1989 | CA1251226A1 Mixed oxides of alumina and zirconia consisting essentially of spherical particles having a narrow granulometric distribution and process for their preparation |
| 03/08/1989 | CN1031516A Sintering method of lime stone (lime) suitable for bauxite at high aluminium-silicate ratio |
| 03/08/1989 | CN1003507B Red mud separating technique in process of aluminum oxide preparation |
| 03/07/1989 | US4810682 Production of useful materials including synthetic nepheline from Bayer red mud |
| 03/07/1989 | US4810524 Plasma polymerization |
| 03/07/1989 | US4810441 Process for the preparation of a ceramic fiber |
| 03/01/1989 | EP0304721A1 Preparation of microcrystalline boehmite and ceramic bodies |
| 03/01/1989 | EP0304616A1 Abrasive |
| 02/28/1989 | US4808397 Process for preparing fine particles of metal oxides |
| 02/22/1989 | EP0304243A1 Production of ceramic powders by emulsion precipitation processes and the products thereof |
| 02/22/1989 | CN1031243A Abrasive material |
| 02/21/1989 | US4806513 Silicon and fluorine-treated alumina containing a chromium catalyst and method of producing same |
| 02/21/1989 | US4806333 Finely divided oxide and its manufacture |
| 02/21/1989 | CA1250130A1 Aluminum oxide powders and products |
| 02/09/1989 | WO1989000980A1 Method for the multistage, waste-free processing of red mud to recover basic materials of chemical industry |
| 02/08/1989 | EP0302368A2 Process for the production of sinterable powders for binary and multinary ceramic oxidic materials |
| 02/08/1989 | EP0302252A2 Filter for small particles |
| 01/31/1989 | CA1249419A1 METHOD FOR PRODUCING .beta.-ALUMINAS |
| 01/25/1989 | EP0300320A2 Process for preparation of silane |
| 01/25/1989 | CN1030560A Method for processing bauxite into alumina |
| 01/24/1989 | US4800051 Method for fabricating ceramic materials |
| 01/24/1989 | US4799938 Dispersing, drying, communiting |
| 01/17/1989 | US4798710 Process for the manufacture of a powder for ceramic materials, containing at least one metal oxide |
| 01/17/1989 | CA1248733A1 Manufacture of basic aluminum chlorosulphates |
| 01/11/1989 | CN1030218A Method of production of aluminium oxide containing lithium |
| 01/11/1989 | CN1030217A Process fo extraction of alumina from powder coal ash with formation of gel material b-c2s |
| 01/10/1989 | US4797271 Screening, treatment with steam, agglomeration |
| 01/10/1989 | US4797270 Method for the obtention of an especial alumina from the powder produced in metallurgical alumina calcination |
| 01/10/1989 | US4797269 Firing |
| 01/10/1989 | US4797139 Boehmite produced by a seeded hydyothermal process and ceramic bodies produced therefrom |
| 01/04/1989 | EP0297998A1 Process for extracting and purifying gallium from Bayer liquors |
| 01/03/1989 | US4795588 Method of preparing a luminescent Eu2 + activated strontium aluminate |
| 12/27/1988 | US4793979 Process for chemical separation of phosphorus ore |
| 12/21/1988 | EP0295541A2 Process for producing flux for brazing |
| 12/21/1988 | EP0295389A2 Process and apparatus for producing ceramic powders |
| 12/21/1988 | CN88103282A Method for extractting and purifying gallium from bayer-liquid |
| 12/20/1988 | CA1246833A1 Hydrous aluminium oxide containing substantially pseudobohmite, a process for producing same and the use thereof |
| 12/14/1988 | CN88103256A Method of treating by silicopyrohydrolysis worn linings from hall-heroult electrolysis tanks |
| 12/13/1988 | US4790982 Reducing sulfur and/or nitrogen oxide emissions in hydrocarbon conversion processes |
| 12/07/1988 | EP0294300A1 Process for treating the linings of Hall-Heroult electrolytic cells by silicopyrohydrolysis |
| 12/07/1988 | EP0294208A2 Microcrystalline alumina-based ceramic articles |
| 12/07/1988 | CN87103820A Prodn. process of powdery alum |
| 12/06/1988 | US4789485 Clarification of bayer process liquors |
| 11/30/1988 | EP0293247A1 Ultra low alpha-particle-emitting aluminum hydroxide and alumina |
| 11/30/1988 | EP0293163A2 Abrasive grits formed of ceramic, impregnation method of making the same and products made therewith |
| 11/22/1988 | US4786482 Bayer process for producing aluminum hydroxide having improved whiteness |
| 11/16/1988 | CN85105213A Process for producing sandy aluminium hydroxide |
| 11/15/1988 | US4784686 Synthesis of ultrafine powders by microwave heating |
| 11/15/1988 | CA1244628A1 Removal of high molecular weight organic compounds from bayer process caustic liquor |
| 11/09/1988 | CN87103074A Process for preparation of silver-containing catalyst |
| 11/03/1988 | DE3813454A1 Verfahren zur herstellung von anorganischen metallverbindungen mit ultrahoher reinheit Process for the preparation of inorganic metal compounds with ultra-high purity |
| 11/02/1988 | CN88102321A Method for reduction of impurity in alkaline solution in producing aluminium hydroxide by bayer-process |
| 11/01/1988 | USRE32777 Chlorination, bromination or iodination of metal, fluorination |
| 11/01/1988 | US4781982 Dentifrices |
| 10/26/1988 | CN88101926A Use of surfactants in alumina precipitation in the bayer process |
| 10/25/1988 | US4780307 Aluminum hydroxide |
| 10/24/1988 | EP0227797A4 Reduction of organohalogen compounds in metal and metalloid chloride production streams. |
| 10/20/1988 | WO1988007975A1 Process for reducing the impurities in lyes in the bayer process |
| 10/18/1988 | US4778668 Reacting silicon halide and metal aluminum hydride in hydrocarbon medium with quaternary ammonium salt promoter |
| 10/12/1988 | EP0286180A1 Method of preparing a luminescent Eu2+ activated strontium aluminate, aluminate obtained by said method and low-pressure mercury vapour discharge lamp provided with such an aliminate |
| 10/12/1988 | EP0286034A1 Use of surfactants in Alumina precipitation in the Bayer process |
| 10/05/1988 | EP0285339A1 Metal oxide and metal sulfide particles and production thereof |
| 10/05/1988 | EP0285282A2 Aluminium salt and antiperspirant composition comprising it |