Patents
Sitemap › C01 - Inorganic chemistry › C01B - Non-metallic elements; Compounds thereof › C01B 33 - Silicon; Compounds thereof
Patents for C01B 33 - Silicon; Compounds thereof (28,579)
09/1990
09/25/1990US4959200 Process for manufacturing silane
09/23/1990CA2012954A1 Controlled precipitation and use of amorphous silica from geothermal fluid or aqueous media having a silicic acid concentration
09/20/1990WO1990010496A1 Apparatus
09/19/1990EP0387638A2 Purification of chlorosilanes
09/19/1990EP0387307A1 Chemical reactions in reverse micelle systems
09/16/1990WO1990010596A1 Improved vitreous silica products
09/12/1990CN1045252A Purifying process of diatomaceous earth through flocculation and magneto-seperation by specific gravity
09/11/1990US4956337 Nb-Si-Al-O superconductors with high transition temperatures and process for manufacturing the same
09/11/1990US4956329 High surface area cordierite catalyst support structures
09/11/1990US4956326 Corrosion resistant ceramics or graphite
09/11/1990US4956167 Silicas
09/11/1990US4956121 Multilayer silicate dimethylacetamidelithium chelate complexes at cationic sites
09/11/1990US4956059 Treatment with chlorine or hydrogen chloride, electric fields to remove alkali
09/07/1990WO1990009844A1 Method for intercalating organic-swelled layered metal chalcogenide with polymer chalcogenide
09/05/1990EP0385247A1 Grey-black mixed-phase pigments and process for manufacturing them
09/05/1990CN1009455B Treatment of zircon
09/05/1990CN1009454B Process for preparing halosilanes
09/05/1990CN1009438B Process for preparing agglomerates of malachite crystals and their application
09/04/1990US4954327 Production of silica aerogels
09/04/1990US4954220 Flocculate the pulp and filler fines using polysilicate microgel and water soluble cationic polymer
08/1990
08/30/1990DE4005149A1 Verbesserte puzzolanische zubereitungen Improved pozzolanic preparations
08/29/1990EP0384728A2 Preparation method for zircon powder
08/29/1990EP0384596A2 Thin silica flakes and method of making
08/29/1990EP0384284A2 Process for preparing silica having a low silanol content
08/29/1990EP0384226A1 Inorganic hydrogel flatting agents
08/29/1990EP0272306B1 Oligomerization of olefins
08/29/1990EP0271563B1 Layered silicates and their synthesis
08/29/1990EP0270659B1 Layered metal oxides containing interlayer oxides and their synthesis
08/29/1990CN1009336B Double-injection method for preparing uniform corpuscles of silicon dioxide
08/28/1990US4952544 Cracking catalysts for heavy oils; gasoline
08/24/1990CA2010816A1 Pozzolanic compositions
08/23/1990CA2008449A1 Thin silica flakes and method of making
08/22/1990EP0382795A1 Polyaluminosilicate microgel process and composition.
08/22/1990EP0180900B1 Process for the adjustment of the structure and/or surface characteristics of oxidized materials
08/21/1990US4950626 Production of ceramic materials
08/21/1990US4950502 Method of hydrophobing silica
08/21/1990US4950373 Process for the production of disilane from monosilane
08/21/1990US4950310 Process for the preparation of crystalline sheet sodium silicates
08/21/1990CA1272999A1 Crystalline layered and large pore catalytic material
08/16/1990EP0382427A2 Cationically dispersed slurries of calcined kaolin clay
08/16/1990EP0382310A2 Process for preparing monoliths of aerogels of metal oxides
08/15/1990CN1044634A Method of hydrothermal producting solution of solidum silicate at high ratio of si:na
08/15/1990CN1044633A Process for hydrothermal preparing solution of solidum silicate at high ratio of si:k
08/15/1990CN1044632A Method of hydrothermal preparating solution of solidum silicate
08/14/1990US4948102 Method of preparing high-purity metal and rotary cooling member for use in apparatus therefor
08/14/1990CA1272740A1 Production of ceramic materials
08/10/1990CA2007945A1 Cationically dispersed slurries of calcined kaolin clay
08/09/1990WO1990008735A1 HYDROTHERMAL PROCESS FOR PREPARING SODIUM SILICATE SOLUTIONS WITH A HIGH SiO2:Na2O MOLAR RATIO
08/09/1990WO1990008734A1 Hydrothermal process for preparing sodium silicate solutions
08/09/1990WO1990008733A1 HYDROTHERMAL PROCESS FOR PREPARING POTASSIUM SILICATE SOLUTIONS WITH A HIGH SiO2:K2O MOLAR RATIO
08/09/1990WO1990008730A1 Process for removing fluoride from a wastewater and producing hydrofluoric acid therefrom
08/08/1990EP0380998A1 Process for the hydrothermal preparation of potassium silicate solutions with a high mole ratio Si02:K20
08/08/1990EP0380997A1 Process for the hydrothermal preparation of sodium silicate solutions
08/08/1990EP0380996A1 Process for the hydrothermal preparation of sodium silicate solutions with a high mole ratio Si02:Na20
08/08/1990EP0380837A1 Process for reducing silicon, germanium and tin halides
08/08/1990CN1009075B Prepn. of high purity silicon dioxide
08/07/1990US4946976 Cordierite composition and method of production
08/07/1990US4946614 By adding solid super acid dispersion
08/01/1990EP0380180A2 The preparation of composite crystalline silicates
08/01/1990EP0379590A1 Gel composition and nail cosmetic
08/01/1990CN1044269A Process for production of sodium silicate from mirabilite
07/1990
07/31/1990US4945074 Produced by controlled hydration and dehydration of alkali metal silicate glass powder
07/31/1990CA2009035A1 Process for hydrothermal production of sodium silicate solutions
07/25/1990EP0378916A1 Catalytic reactions using zeolites
07/25/1990CN1044052A Catalytic reactions using zeolites
07/25/1990CA2008316A1 Preparation of composite crystalline silicates
07/24/1990US4943425 Method of making high purity dense silica of large particle size
07/18/1990EP0377900A2 Process for preparation of silane
07/18/1990EP0129555B1 Process and apparatus for obtaining silicon
07/18/1990CN1043886A Accelerator for salt and silicon dioxde reaction
07/17/1990US4942026 Novel synthesis of sodipotassic copper tube silicates
07/17/1990US4941893 Gas separation by semi-permeable membranes
07/17/1990CA1271617A1 Preparation of silane and amine alanes
07/17/1990CA1271616A1 Process for production of silane
07/12/1990WO1990007337A1 Thickening agents for aqueous systems
07/12/1990CA2007271A1 Process for preparation of silane
07/11/1990EP0377302A2 Zeolite compositions
07/11/1990EP0377301A1 Stable silica suspensions
07/11/1990CN1008725B Method for improving dispersibility of organoclays
07/10/1990US4940571 From tetraalkyl silicate
07/10/1990US4940568 Arrangement for the continuous melting of granulated silicon for a band-drawing method
07/10/1990US4940477 Method for synthesizing topaz
07/10/1990CA1271307A1 Process for manufacturing high purity silica
07/04/1990EP0376406A1 Synthetic, macroporcous, amorphous alumina silica and a process for refining glyceride oil
07/04/1990EP0375693A1 Chemically delaminated mica containing mineral
06/1990
06/28/1990DE3841210A1 Process for preparing silicon tetrafluoride
06/27/1990EP0375548A1 Silicon oxynitride glass precursors, silica gels for the preparation of these precursors, silicon oxynitride glass obtained from these precursors, and methods for the preparation of these products
06/27/1990EP0374754A1 Coating composition and a process for manufacturing the same
06/27/1990EP0374206A1 New zeolite ssz-26.
06/27/1990CN1043270A Process for preparing cross-linking clay with increased acidic property
06/26/1990CA1270805A1 Process for preparation of synthetic mordenite molded body
06/22/1990CA2006146A1 Stable suspensions
06/20/1990EP0374017A1 Silicate granules with improved dissolution speed
06/20/1990CN1043112A Silicon powder and method production of silicon powder
06/20/1990CA2005931A1 Zeolite compositions
06/19/1990US4935391 Process for preparing a purified mineral coating
06/14/1990WO1990006283A1 Synthetic porous crystalline material, its synthesis and use
06/14/1990WO1990006177A1 High surface area cordierite catalyst support structures
06/13/1990EP0372918A2 Silicon powder and method for its production
06/13/1990EP0372771A1 Method of preparing heteropolyacid catalysts
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