| Patents for C01F 7 - Compounds of aluminium (12,677) |
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| 02/19/1992 | CN1015538B Prodn. process of powdery alum |
| 02/19/1992 | CN1015537B Process for extraction of alumina from powder coal ash with formation of gelmaterial b-c25 |
| 02/18/1992 | US5089247 Process for producing zirconium-doped pseudoboehmite |
| 02/12/1992 | EP0470573A2 Method for the treatment of fluor-containing wastes |
| 02/12/1992 | CN1058574A Crystal growth modifier |
| 02/12/1992 | CN1015437B Method for extracting and purifying gallium from bayer-liquid |
| 02/11/1992 | US5087330 Anodizing aluminum substrate, changing voltage to form pores of different sizes |
| 02/11/1992 | CA1295455C Hexaamminealuminum iodide monoammoniate and process for its preparation |
| 02/11/1992 | CA1295454C Process for preparing ammine salts of aluminum iodide |
| 02/09/1992 | CA2048520A1 Method for working up fluorine-containing residues |
| 02/06/1992 | WO1992001645A1 Composite alumina/metal powders, cermets made from such powders and production methods |
| 02/06/1992 | WO1992001644A1 Aluminium oxide fibres and process for producing them |
| 02/05/1992 | EP0469257A2 Aluminiumhydroxyd for its insertion in plastic and process for its preparation |
| 02/04/1992 | CA1295313C Stabilized magnesia and its use in catalytic processes |
| 01/30/1992 | DE4023782A1 Poly-aluminium chloride soln. prepn., for ceramic - by splitting water and hydrogen chloride from aluminium chloride hexa-hydrate, to give high ratio of aluminium to chlorine |
| 01/29/1992 | CN1058197A Method for producing liquid aluminium sulphate |
| 01/28/1992 | US5084209 Mixing alkoxide salts and hydrolyzing, gelation |
| 01/28/1992 | US5083712 Continuous milling, classification |
| 01/22/1992 | EP0467617A2 Improved precipitation vessel |
| 01/22/1992 | EP0467550A2 Fireproofing composition and its use |
| 01/21/1992 | CA2047539A1 Composition and use |
| 01/11/1992 | CA2046170A1 Basic aluminum antiperspirant active materials having enhanced activity, antiperspirant active compositions containing such materials, and methods for preparation of such materials and compositions |
| 01/09/1992 | WO1992000355A1 Pigments based on double-layer hydroxides, process for manufacturing the pigments, and their use |
| 01/09/1992 | WO1992000246A1 Process for producing particles of magnesium spinel from waste products and the particles so-produced |
| 01/09/1992 | DE4030307C1 Solns. for electrochemical and/or chemical processing of metal - contg. salt and/or sulphuric acid, useful for disposing of aluminium metal |
| 01/08/1992 | EP0465055A1 Crystal growth modification |
| 01/08/1992 | EP0464627A1 Heat resistant transition alumina and process for producing the same |
| 01/07/1992 | US5079203 Polyoxometalate intercalated layered double hydroxides |
| 01/07/1992 | US5078983 Process for producing dawsonite |
| 01/07/1992 | CA1293967C Metal-containing spinel composition and process for using same |
| 01/07/1992 | CA1293857C Method of treating fluoride contaminated wastes |
| 01/02/1992 | EP0463049A1 Apparatus |
| 01/02/1992 | DE4020272A1 Pigmente auf basis von doppelschicht-hydroxiden, verfahren zu deren herstellung sowie deren verwendung Pigments based on double-layer hydroxides, processes for their preparation and their use |
| 01/01/1992 | CN1057444A Method for preparation of liquid palymeric aluminium sulfate and its applications |
| 01/01/1992 | CN1057443A Process for production of aluminium hydroxide gel series products by carbon dioxide method |
| 01/01/1992 | CN1057442A Method for producing aluminium hydroxide used as filling material |
| 12/31/1991 | US5077114 Heat resistant nondeforming membrane for filtering exhaust gases, microorganisms dialysis |
| 12/31/1991 | US5077105 Gas tight; thin, uniform interior coating; heat resistant; hig h strength |
| 12/31/1991 | US5077032 Hydrolyzing aluminum alkoxide in polyether solvent |
| 12/31/1991 | US5076940 Treatment of impure aqueous solutions |
| 12/30/1991 | CA2046007A1 Heat resistant transition alumina and process for producing the same |
| 12/27/1991 | EP0462388A2 Coated particles, hollow particles, and process for manufacturing the same |
| 12/27/1991 | EP0462216A1 Process for improving the physical and catalytic properties of a fluid cracking catalyst |
| 12/26/1991 | WO1991019679A1 Coagulants based on double-layer hydroxide compounds |
| 12/26/1991 | CA2045306A1 Crystal growth modifier |
| 12/25/1991 | CN1057211A Process using sorbents for removal of sox from flue gas and other gas streams |
| 12/24/1991 | US5075472 Aluminum hydroxide lithium oxalate compounds |
| 12/24/1991 | US5075265 Pyrolysis |
| 12/24/1991 | US5075092 Process for preparation of silane |
| 12/24/1991 | US5075090 Atomizing, ignition, combustion of organometallic and/or organosilicon compounds in combustible organic liquid |
| 12/18/1991 | EP0461949A1 Composition containing alumina doped with rare earths and/or alkaline earths and process for its preparation |
| 12/17/1991 | US5073385 Aluminum oxyhydroxide sulfate |
| 12/17/1991 | US5072886 Method of preparing a new ultra-fine particle transition alumina |
| 12/12/1991 | DE4018628A1 Koagulationsmittel auf der basis von doppelschichthydroxid-verbindungen Coagulating agent on the basis of double layer hydroxide compounds |
| 12/11/1991 | EP0460987A1 Ceramic preforms, process for their production and applications thereof |
| 12/11/1991 | CN1056827A Polyoxometatate intercalated layered double hydroxides |
| 12/11/1991 | CN1015064B Abrasive material |
| 12/09/1991 | WO1991018667A1 PROCESS USING SORBENTS FOR THE REMOVAL OF SOx FROM FLUE GAS AND OTHER GAS STREAMS |
| 12/09/1991 | CA2064715A1 Process using sorbents for the removal of sox from flue gas and other gas streams |
| 12/04/1991 | CN1056675A Ceramics preparative green bodies, process of production and use thereof |
| 12/04/1991 | CN1056666A Basic aluminum chloride producing method |
| 12/04/1991 | CN1015039B Mixed lanthanum-magnesium aluminates, their production process and lasers using these aluminates |
| 11/28/1991 | DE4116523A1 Alpha-alumina prodn. with narrow particle size distribution - by preparing beta-di:ketone complex, hydrolytic condensation to colloid and crystallisation |
| 11/28/1991 | DE4116522A1 Alpha-alumina-coated substrates for sepn. membranes etc. - by coating with colloidal solns. of hydrolysed aluminium beta-di:ketone complexes, and heating to at least 900 deg. C |
| 11/27/1991 | EP0458389A1 Method for separating organic substances |
| 11/27/1991 | EP0263872B1 Alkaline earth metal spinels and processes for making and using same |
| 11/27/1991 | EP0220026B1 Silica or alumina sol using reactive monomer as dispersion medium |
| 11/26/1991 | WO1991018670A1 Polyoxometalate intercalated layered double hydroxides |
| 11/26/1991 | US5068095 Method for reducing the amount of colorants in a caustic liquor |
| 11/26/1991 | CA2043019A1 Method for separating organic substances |
| 11/24/1991 | CA2043029A1 Ceramic preforms, making process and applications thereof |
| 11/21/1991 | EP0429548A4 Small sized alpha alumina particles and platelets |
| 11/20/1991 | CN1056295A Process for preparing ferro-type aluminium iron polychloride purifier |
| 11/19/1991 | US5066387 Process for removing fine particles from a powder |
| 11/14/1991 | DE4014490A1 Very finely divided hydrargillite prodn. with low alkali content - by hydrothermal crystallisation using small amt. of seed suspension prepd. from gel |
| 11/13/1991 | CN1056091A Producing sand like synthetic cryolite by clay bittern method |
| 11/12/1991 | US5064791 Ion exchanging, precipitation, uniform surface coating |
| 11/12/1991 | US5064783 Production of spherical ceramic powders |
| 11/12/1991 | US5064690 Method for coating surface of inactive granules |
| 11/06/1991 | EP0455489A2 Preparation of a basic aluminium antiperspirant active material having enhanced activity |
| 11/05/1991 | US5063033 Process for the production of boehmite |
| 10/31/1991 | WO1991016265A1 Process for the synthesis of high porosity, high specific surface metallic oxides, oxides obtained and catalysts containing same |
| 10/31/1991 | WO1991014019A3 Process and device for regenerating alkaline solutions for pickling aluminium |
| 10/30/1991 | CN1014509B Method for producing substantially pure alumina material |
| 10/29/1991 | US5061544 Differentiation in pore size; dimensional stability upon heat treatment; used as separation membrane |
| 10/29/1991 | US5061474 Amorphous aluminum oxides, methods of production and uses |
| 10/22/1991 | US5059367 Adding water, binder, plasticizer to alumina powder; kneading; extruding, pre-sintering, cooling, interior; sintering; gas-tight, heat resistant |
| 10/22/1991 | CA1290920C Production of useful materials including synthetic nepheline from bayer red mud |
| 10/16/1991 | EP0451395A1 Preparation of basic aluminium chlorides |
| 10/16/1991 | CN1055354A Process for isomerization of hydrochloro-fluorocarbons |
| 10/12/1991 | CA2014589A1 Preparation of basic aluminium chlorides |
| 10/09/1991 | EP0450467A2 Process for isomerization of hydrochlorofluorocarbons |
| 10/08/1991 | US5055443 Attrition resistant agglomerates of active alumina |
| 10/08/1991 | US5055019 Process for the production of boehmitic aluminas |
| 10/08/1991 | CA1290137C Intercalations of crystalline lithium aluminates |
| 10/08/1991 | CA1290136C Process for preparing fine particles of metal oxides |
| 10/02/1991 | EP0449672A1 Activated alumina agglomerates and process for their preparation |
| 10/02/1991 | CN1054955A Method and apparatus for production of basic aluminium chloride from al contg. ores |
| 10/01/1991 | US5053144 Method for the multistage, waste-free processing of red mud to recover basic materials of chemical industry |
| 10/01/1991 | CA2039430A1 Process for isomerization of hydrochlorofluorocarbons |