| Patents for C01B 33 - Silicon; Compounds thereof (28,579) |
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| 05/07/1991 | US5013770 Coated With Silylalkyl-Or Silylaryl-Urethanes Or Ureas |
| 05/07/1991 | US5013585 Method for the preparation of surface-modified silica particles |
| 05/07/1991 | US5013537 Process for the synthesis of zeolites of the ferrisilicate type, products so obtained |
| 05/02/1991 | EP0425428A2 Method for preparation of sodium silicates |
| 05/02/1991 | EP0425427A2 Method for preparation of sodium silicates |
| 05/02/1991 | EP0424981A1 Parallelepiped shaped crucible for single or quasi-single crystal silicon ingots |
| 04/30/1991 | US5011690 Mixing aqueous stabilized silica sol containing dispersed material and aqueous polymer solution to form two-phase system, condensing to aggregate silica drops into spheres containing included material |
| 04/30/1991 | US5011669 Process for producing a rod-form silica |
| 04/30/1991 | US5011591 Large-pored crystalline titanium molecular sieve zeolites |
| 04/30/1991 | US5011534 Degritting, spray drying, pulverizing, roasting and repulverizing |
| 04/30/1991 | CA1283647C Layered silicates and their synthesis |
| 04/30/1991 | CA1283646C Layered metal oxides containing interlayer oxides and their synthesis |
| 04/24/1991 | EP0424187A1 Process for the preparation of pillared clays and the pillared clays obtained from the process |
| 04/24/1991 | EP0424001A1 Animal dross absorbent and method |
| 04/24/1991 | EP0423948A2 Removal of hydrogen-containing silanes from organosilane mixtures |
| 04/24/1991 | CN1050857A Making method of silicon dioxde solution |
| 04/24/1991 | CN1012429B Molecular sieve composition of b-a1-p-si-o |
| 04/23/1991 | US5010048 Zeolite containing fluoride |
| 04/23/1991 | US5009874 Hydrophobic precipitated silica granules |
| 04/23/1991 | US5009703 Silicon smelting process in direct current furnace |
| 04/23/1991 | CA1283372C Container for aggressive liquids |
| 04/20/1991 | WO1991005736A1 Hydrophilic polymer-silicate mineral composite and its use |
| 04/18/1991 | DE3934473A1 Hydrothermal synthesis of highly swelling saponite, hectorite etc. - with addn. of sodium hydrogen carbonate, used in cosmetics, paint, drilling mud etc. |
| 04/17/1991 | EP0422202A1 Opacifying kaolin pigments and process for making same |
| 04/17/1991 | EP0422013A1 Method for intercalating organic-swelled layered metal chalcogenide with polymer chalogenide by treatment with organic, hydrolyzable, polymeric chalcogenide precursor wherein organic hydrolysis by-products are removed |
| 04/17/1991 | CN1050707A Process for preparing potassium silicate solution |
| 04/17/1991 | CN1012369B Process for preparation of organoclay gelatinizer |
| 04/16/1991 | US5008233 Reacting alumina with ammonium hexafluorosilicate |
| 04/16/1991 | US5008223 Calcining silicon dioxide and zirconium oxide to obtain zirconium silicate transparent crystals; carbon black |
| 04/16/1991 | US5008094 Alkali or alkaline earth metal silicates with specific molar ratios and containing tetramethylammonium ion |
| 04/16/1991 | CA1283090C Bonded phase of silica for solid phase extraction |
| 04/09/1991 | US5006574 Cationcally dispersed slurries of calcined kaolin clay |
| 04/09/1991 | US5006317 Process for producing crystalline silicon ingot in a fluidized bed reactor |
| 04/04/1991 | WO1991004225A1 Composite primary particle of noncrystalline silica, composite secondary particle of noncrystalline silica, shaped form thereof and production thereof |
| 04/04/1991 | WO1991004223A1 Gas separation by semi-permeable membranes |
| 04/03/1991 | EP0420437A1 Opaliform procellanite and process for the preparation thereof |
| 04/03/1991 | EP0419581A1 Method for intercalating organic-swelled layered metal chalcogenide with a polymeric chalcogenide by plural treatments with polymeric chalcogenide precursor |
| 04/03/1991 | CN1050365A Process for preparing porous calcium silicate filler |
| 04/03/1991 | CN1050364A Sio2 slurry of high solid content |
| 04/02/1991 | US5004716 Synthetic stevensite and process for preparation thereof |
| 04/02/1991 | US5004488 Heating low density silica flour; forming fused silica; grinding |
| 04/02/1991 | CA1282225C Manufacturing process of high purity silicon bars |
| 03/27/1991 | EP0419358A1 Process for the preparation of disilane |
| 03/27/1991 | EP0418847A1 Plant for processing a filtration slurry containing essentialy diatomaceous earth and process for operating the plant |
| 03/23/1991 | CA2025823A1 Process for the preparation of disilane |
| 03/20/1991 | EP0417253A1 Low temperature method of forming materials using one or more metal reactants and a halogen-containing reactant to form one or more reactive intermediates |
| 03/19/1991 | US5001183 Method of hydrophobing silica |
| 03/19/1991 | US5000933 Process for hydrothermal production of sodium silicate solutions |
| 03/19/1991 | CA2025190A1 Opaliform porcellanite and process for the preparation thereof |
| 03/19/1991 | CA1281600C Polymeric resin composition incorporating a latex-coated inorganic filler |
| 03/07/1991 | DE3929635A1 Solid particle sepn. from silicon melt - by time-variable crucible rotation during directional solidification |
| 03/06/1991 | CN1011880B Prepn. of sodium-base bentonite from calcium-base bentonite |
| 03/06/1991 | CN1011879B Prepn. of trichlorosilane |
| 03/05/1991 | US4997477 Uranium silicide dispersion fuel utilizing rapid solidification by atomization |
| 03/05/1991 | US4997474 Reduction of silicon dioxide with silicon carbide |
| 03/05/1991 | CA1281021C Layered silicate |
| 03/05/1991 | CA1280858C Comminuting and rapidly solidifying particles of metalloids and additive metal |
| 02/27/1991 | EP0413783A1 Thickening agents for aqueous systems |
| 02/27/1991 | CN1049485A Process for production of composite of metal oxides, composite powders of metal oxides and ceramic materials |
| 02/26/1991 | US4996174 Production of ceramic materials |
| 02/26/1991 | US4995964 Catalyst selectivity, stability |
| 02/21/1991 | WO1991001952A1 Mullite whisker preparation |
| 02/20/1991 | EP0413564A2 Formation of polymeric metal oxide materials |
| 02/20/1991 | CN1049300A Agglomerates of malachite crystals and method for their preparation |
| 02/19/1991 | US4994425 Magnesia-silica cogels with controlled porosity for hydrorefining catalysts |
| 02/19/1991 | US4994107 Varying temperature, homogeneous nucleation |
| 02/19/1991 | CA1280399C Spherical sio2 particles |
| 02/13/1991 | EP0412342A2 Process for hydration of halogen-substituted compounds |
| 02/12/1991 | US4992251 Amorphous, specific properties; abrasives in transparent toothpastes |
| 02/12/1991 | US4992245 Annular heated fluidized bed reactor |
| 02/12/1991 | CA2023074A1 Process for the hydrogenation of halogen-substituted compounds |
| 02/07/1991 | WO1991001271A1 Method for obtaining molybdenum disilicide powder |
| 02/06/1991 | EP0411471A1 Process for the dismutation of chlorosilanes |
| 02/06/1991 | EP0411053A1 Method for intercalating organic-swelled layered metal chalcogenide with polymer chalcogenide |
| 02/05/1991 | US4990405 High strength; waterproofing; gasket seals; dielectrics; dielectrics; papers, films, boards and laminates; construction materials |
| 01/30/1991 | EP0410694A2 Mullite articles and their manufacture |
| 01/30/1991 | EP0410264A1 Cross-linkable surface-modified micaceous particulates and compositions containing the same |
| 01/29/1991 | US4988882 Medical imaging; positron emission tomography |
| 01/29/1991 | CA2020453A1 Thermal shock and creep resistant porous mullite articles |
| 01/28/1991 | CA2020493A1 Cross-linkable surface-modified micaceous particulates and coating compositions containing the same |
| 01/23/1991 | EP0409319A1 Process for the preparation of a metal oxide composite, composite metal oxide powders and ceramic materials |
| 01/23/1991 | EP0409167A2 High purity silica and method for producing high purity silica |
| 01/23/1991 | EP0409083A1 Process for the preparation of SiO2 aerogels |
| 01/23/1991 | EP0409082A1 Process for the preparation of SiO2 aerogels |
| 01/23/1991 | EP0409015A2 Method for the production of raw material moulded bodies and raw material moulded bodies so produced |
| 01/23/1991 | EP0408664A1 Synthesis of a crystalline molecular sieve |
| 01/23/1991 | EP0408549A1 Method for the purification of silicon |
| 01/23/1991 | CN1011302B Process for preparing magnesium-aluminum-phosphorus-silicon-oxide molecular sieve |
| 01/23/1991 | CN1011301B Process for producing manganese-aluminum-phosphorus-silicon-oxide molecular sieve |
| 01/22/1991 | US4987106 Seeding metal silicate gel in aqueous solution with sepiolite or attapulgite, heating, crystallization |
| 01/22/1991 | US4987012 Maintaining constant ph during alkaline hydrolysis of metal alkoxide in seeded dispersion |
| 01/22/1991 | US4986971 From silicon powder produced by gas atomization of molten silicon |
| 01/22/1991 | CA1279427C Spherical fused silica and its use in fillers and resin compositions |
| 01/21/1991 | CA2021549A1 Process for making a metallic oxide composite, metallic oxide composite powders and ceramic materials thereof |
| 01/19/1991 | CA2021229A1 High purity silica and method for producing high purity silica |
| 01/16/1991 | EP0408300A1 Low density/low surface area silica-alumina composition |
| 01/16/1991 | EP0214147B1 Crystalline magnesia-silica composites and process for producing same |
| 01/16/1991 | CN1048530A Coutrolled porosity silica and process of preparation thereof |
| 01/16/1991 | CN1011223B Iron-aluminium-phsphorus-silicon-oxide molecular sieve compositions |
| 01/16/1991 | CN1011222B Cobalt-aluminium-phosphorus-silicon-oxide molecular sieve composition |