| Patents for C01B 33 - Silicon; Compounds thereof (28,579) |
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| 02/25/1992 | US5091009 For forming inorganic film on glass, ceramic, metal, or plastic surface |
| 02/20/1992 | WO1992002454A1 Silicas |
| 02/19/1992 | EP0471590A1 Thermal shock and creep resistant porous mullite articles prepared from topaz and process for manufacture |
| 02/19/1992 | EP0471370A2 Silane products from reaction of silicon monoxide with hydrogen halides |
| 02/19/1992 | EP0471049A1 Silicate products. |
| 02/19/1992 | CN1015537B Process for extraction of alumina from powder coal ash with formation of gelmaterial b-c25 |
| 02/18/1992 | US5089554 Silica reinforced elastomers |
| 02/18/1992 | US5089458 Synthetic saponite-derivatives, a method for preparing such saponites and their use in catalytic (hydro) conversions |
| 02/18/1992 | US5089456 Process for preparing cordierite |
| 02/18/1992 | US5089244 Process for preparing disilane by using molecular sieves |
| 02/18/1992 | US5089056 Opacifying kaolin pigments and process for making same by reacting with sodium hydroxide in water |
| 02/17/1992 | CA2048502A1 Thermal shock and creep resistant porous mullite articles prepared from topaz and process for manufacture |
| 02/16/1992 | WO1992003387A1 High performance pigments of low oil absorption: preparation, properties and end-use applications |
| 02/14/1992 | CA2047278A1 Silicon smelting process in direct current furnace |
| 02/12/1992 | EP0470936A1 Removal of impurities from a hydride gas |
| 02/12/1992 | CN1015448B Transparent non-vitreous ceramic particulate |
| 02/11/1992 | US5087598 Method for production of pillared clay |
| 02/11/1992 | US5087433 Method and apparatus for the production of SiC whisker |
| 02/11/1992 | CA2048881A1 Foamable compositions |
| 02/06/1992 | WO1992001740A1 Preparing nitridable silicon-containing material, resulting material |
| 02/05/1992 | EP0470009A1 Storage means for a normally gaseous combustible in its liquid phase |
| 02/05/1992 | EP0469180A2 Process for the production of organosilica sol and surface treating agent containing same |
| 02/05/1992 | CN1058381A Method for preparing white carbon black with cacoxenite slag |
| 02/04/1992 | US5086031 Pressed parts based on pyrogenically produced silicon dioxide, method of their production and their use |
| 02/04/1992 | US5085838 Conversion into environmentally safe material; heating with alkaline flux to change crystal structure |
| 02/04/1992 | US5085416 Sterilized food cutting board |
| 01/31/1992 | CA2047657A1 Method for storing in the liquid phase a fuel normally found in a gaseous form |
| 01/29/1992 | EP0468070A1 A method for preparing spherular silica gel particles |
| 01/28/1992 | US5084428 Method for enhancing cation-exchange capacity of montmorillonite decreased by fixation of ion |
| 01/28/1992 | US5084262 Reaction of silica and potassium oxide and potassium hydroxide |
| 01/28/1992 | CA1294755C Polysilicon produced by a fluid bed process |
| 01/22/1992 | EP0466958A1 Surface-treated silica |
| 01/22/1992 | EP0466709A1 Synthesis of kenyaite-type layered silicate material and pillaring of said material |
| 01/21/1992 | US5082887 Aggregated composite mineral pigments |
| 01/21/1992 | US5082641 Silicon/titanium oxide mfi zeolites |
| 01/17/1992 | WO1992001509A1 COMPOSITE CLAY MATERIALS FOR REMOVAL OF SOx FROM GAS STREAMS |
| 01/15/1992 | EP0466012A2 Method for preparation of crystalline zeolite like gallosilicates and their use for the preparation of catalysts and adsorbents |
| 01/15/1992 | EP0465855A2 Process for manufacturing polished silicon wafers having stabilized surfaces for storing |
| 01/15/1992 | EP0465642A1 New zeolite ssz-31 |
| 01/15/1992 | EP0382795A4 Polyaluminosilicate microgel process and composition |
| 01/15/1992 | CN1057818A Preparing method of high purity, single dispersing hydrophobic superfine sio2 granulars |
| 01/14/1992 | WO1992000915A1 Crystalline molecular sieve composition |
| 01/14/1992 | US5080804 Pollution control; disposal |
| 01/14/1992 | CA2084756A1 Crystalline molecular sieve composition |
| 01/09/1992 | WO1992000245A1 Method of producing polycrystalline silicon rods for semiconductors and thermal decomposition furnace therefor |
| 01/09/1992 | DE4041902A1 Pyrolytic graphite-coated graphite clamp - used to hold starter wire for poly-silicon rod prod. |
| 01/09/1992 | CA2046438A1 Synthetic crystalline aluminosilicate for the catalytic conversion of hydrocarbons in petrochemical processes |
| 01/08/1992 | EP0464289A2 Preparation of silica sols |
| 01/07/1992 | US5079208 Synthetic, macroporous, amorphous alumina silica and a process for refining glyceride oil |
| 01/07/1992 | US5078927 Mixing pitch and(or) coal with quartz sand |
| 01/02/1992 | EP0463049A1 Apparatus |
| 01/02/1992 | EP0393138A4 Crystalline molecular sieve |
| 01/02/1992 | DE4019789A1 Verfahren zur herstellung von natriumsilikatloesungen A process for the production of sodium silicate solutions |
| 12/31/1991 | US5077248 Synthetic stevensite and process for preparation thereof |
| 12/31/1991 | US5077028 Depositing silicon on surface of high purity silicon particles while feeding in chlorosilance at high temperature |
| 12/31/1991 | US5077027 Method for producing silicon halides by reducing silicon tetrhalides under a plasma torch |
| 12/27/1991 | EP0462494A1 Process and apparatus for casting silicon blocks with columnar structure to be used in the manufacture of solar cells |
| 12/26/1991 | WO1991019673A1 Process for preparing sodium silicate solutions |
| 12/26/1991 | WO1991019672A1 Reinforced precipitated silica |
| 12/24/1991 | US5075092 Process for preparation of silane |
| 12/24/1991 | US5075033 Reacting smectite-type clay slurries with cationic organic compounds, separation, recycling liquid |
| 12/19/1991 | DE4018967A1 Polycrystalline silicon blocks with column crystallised structure |
| 12/17/1991 | US5073672 Catalyst of the gallosilicate type and its utilization for the aromatization of light C2 -C4 gases |
| 12/17/1991 | US5073107 Rotary drum furnace having burners which heat quartz sand bed |
| 12/17/1991 | CA1293239C Synthetic alkali metal alumino-silicates, compositions and their methods of preparation |
| 12/17/1991 | CA1293105C Production of ceramic materials |
| 12/14/1991 | CA2044389A1 Process and equipment for casting silicon blocks of columnar structure as the base material for solar cells |
| 12/12/1991 | WO1991018834A1 Silicates |
| 12/12/1991 | WO1991018833A1 Large-pored molecular sieves containing at least one octahedral site and tetrahedral sites of at least one type |
| 12/11/1991 | EP0460868A1 Amine catalysts for the low temperature conversion of silica precursors to silica |
| 12/10/1991 | CA1292973C Aged silica |
| 12/05/1991 | CA2042689A1 Amine catalysts for the low temperature convension of silica precursors to silica |
| 12/04/1991 | EP0459711A2 Method and apparatus for processing image data |
| 12/04/1991 | EP0459421A1 Method and apparatus for purifying silicon |
| 12/04/1991 | EP0275267B1 Process for photochemical vapor deposition of oxide layers at enhanced deposition rates |
| 12/04/1991 | CN1014975B Layered oxides containing interlayer polymeric oxides and their syntesis |
| 12/04/1991 | CN1014974B Process for mfg. silica particle |
| 12/03/1991 | US5069893 Polymeric basic aluminum silicate-sulphate |
| 12/03/1991 | US5069816 Zirconium silica hydrogel compositions and methods of preparation |
| 12/01/1991 | CA2043421A1 Water resistant/repellant vermiculite articles and method of their manufacture |
| 11/28/1991 | WO1991017953A1 Simplified process for making expandable stratified silicates |
| 11/28/1991 | WO1991017952A1 Process for producing crystalline silicon ingot in a fluidized bed reactor |
| 11/27/1991 | EP0458286A1 Method for preparing a sintered body of light-transmitting cordierite |
| 11/27/1991 | EP0220026B1 Silica or alumina sol using reactive monomer as dispersion medium |
| 11/21/1991 | EP0456707A1 HYDROTHERMAL PROCESS FOR PREPARING SODIUM SILICATE SOLUTIONS WITH A HIGH SiO 2?:Na 2?O MOLAR RATIO |
| 11/21/1991 | EP0456655A1 Hydrothermal process for preparing sodium silicate solutions |
| 11/21/1991 | EP0456654A1 HYDROTHERMAL PROCESS FOR PREPARING POTASSIUM SILICATE SOLUTIONS WITH A HIGH SiO 2?:K 2?O MOLAR RATIO |
| 11/21/1991 | DE4123288A1 Crystalline silica granulate treatment with supercritical liquid - esp. hydrothermal water to remove inclusions and cause fracture along planar surface |
| 11/21/1991 | DE4123287A1 Treatment of silica granulate to remove inclusions - uses hydrofluoric acid mixed with organic acid to reduce dissolution of silica from clean material and increase removal of inclusions |
| 11/21/1991 | DE4123286A1 Silicon di:oxide granule cleaner - has angled tube with upper feed for granules and acid to give fresh acid action |
| 11/21/1991 | DE4015857A1 Vereinfachtes verfahren zur herstellung von quellfaehigen schichtsilikaten (ii) Simplified process for the preparation of quellfaehigen phyllosilicates (ii) |
| 11/19/1991 | US5066472 Hydrolysis with water vapor, recovering hydrochloric acid |
| 11/19/1991 | US5066420 Production of silica colloids |
| 11/19/1991 | CA2034885A1 Process for producing crystalline silicon ingot in a fluidized bed reactor |
| 11/13/1991 | EP0220198B1 Preparing metal compounds by pyrolysis |
| 11/13/1991 | CN1014694B Method for manufacturing sodium silicate |
| 11/12/1991 | US5064790 Electronics; crack-free |
| 11/12/1991 | US5064783 Production of spherical ceramic powders |
| 11/06/1991 | EP0274488B1 New compositions based on derivatives of silica modified by organic groups, preparation and application thereof, particularly as cationic conductors |
| 11/06/1991 | CN1055908A Process for producing reactive silicon dioxide phase |