Patents
Patents for C01B 33 - Silicon; Compounds thereof (28,579)
02/1989
02/21/1989US4806513 Silicon and fluorine-treated alumina containing a chromium catalyst and method of producing same
02/21/1989US4806386 Method for forming deposited film
02/21/1989US4806329 Hydrolyzing tetraalkoxysilane in presence of ammonium salt
02/21/1989US4806328 Hydrolysis of tetraethoxysliane
02/21/1989US4806327 Process for the preparation of crystalline sheet-type alkali metal silicates
02/21/1989US4805556 Reactor system and method for forming uniformly large-diameter polycrystalline rods by the pyrolysis of silane
02/21/1989CA1250319A1 Olefin upgrading with ferrosilicate zeolite catalyst
02/21/1989CA1250132A1 Process for recovery of silicon from a reaction mixture
02/21/1989CA1250131A1 Melt consolidation of silicon powder
02/21/1989CA1250129A1 Crystalline silicas
02/14/1989US4804422 Method of purifying quartz sand
02/09/1989WO1989000980A1 Method for the multistage, waste-free processing of red mud to recover basic materials of chemical industry
02/08/1989EP0302604A2 Process for the production of silicon tetrachloride
02/08/1989EP0302368A2 Process for the production of sinterable powders for binary and multinary ceramic oxidic materials
02/08/1989CN1030901A 矿物 Mineral
02/01/1989EP0301857A2 Production of soluble silicates from biogenetic silica
02/01/1989EP0301678A2 Method of selective reduction of polyhalosilanes with alkyltin hydrides
02/01/1989EP0301278A2 A particle-dispersing agent
02/01/1989CN1030773A Dispersible organoclay for unsaturated polyester resins
01/1989
01/31/1989US4801437 Combustion trapping oxide dust in water spray
01/31/1989US4801403 Delaminating vermiculite ore by shearing
01/31/1989CA1249564A1 Synthesis of molecular sieving metallosilicates using heteropolymetallates
01/31/1989CA1249417A1 Process for preparing silane from methyldichlorosilane and chlorosilane
01/26/1989WO1989000545A1 Chemically delaminated mica containing mineral
01/25/1989EP0300320A2 Process for preparation of silane
01/25/1989EP0300047A1 Synthetic mica powder, process for its production, and cosmetics containing said synthetic mica powder
01/24/1989US4800103 Inorganic fillers coated with latex
01/24/1989US4800041 Ion exchange
01/24/1989CA1249225A1 Dialytic silica dentifrice
01/18/1989EP0299488A2 Removal of arsine and phosphine from silane
01/18/1989EP0299351A1 Aqueous mineral dispersions
01/18/1989EP0170578B1 Processes for the preparation of silica colloids and spherical silicas
01/17/1989US4798713 Method of selective reduction of halodisilanes with alkyltin hydrides
01/17/1989US4798710 Process for the manufacture of a powder for ceramic materials, containing at least one metal oxide
01/17/1989US4798659 Silicon preparation
01/17/1989US4798630 Process for surface treating clay minerals and reactive intermediates produced by said process
01/17/1989CA1248824A1 Method of making a fire-resistant translucent layer
01/12/1989WO1989000083A1 Process of preparing mixed pillared clays and reduction products thereof
01/11/1989EP0298746A2 Coated inorganic materials
01/11/1989EP0298698A1 Method for producing a metal from its halide
01/11/1989CN1030217A Process fo extraction of alumina from powder coal ash with formation of gel material b-c2s
01/11/1989CN1030216A Preparation of water glass with higher modulus by wet process
01/11/1989CN1030196A Process for manufacturing silica particle
01/10/1989US4797524 Apparatus and method for regenerating active carbon
01/10/1989US4797377 Massive crystalline aluminosilicate with expanded structure and process for its manufacture
01/04/1989EP0298062A1 Silica particles, a method for preparation of silica particles and use of the particles
01/04/1989EP0297820A2 Dispersible organoclay for unsaturated polyester resin
01/03/1989CA1248077A1 Molecular sieve compositions
01/03/1989CA1247946A1 Method of and apparatus for the coating of quartz crucibles with protective layers
12/1988
12/28/1988EP0296401A1 Process for manufacturing fine silica particles
12/28/1988EP0224531B1 Zeolites of the borosilicate type, containing fluorine
12/28/1988CA1247325A Redistribution process for preparing hydrogenated silanes
12/21/1988EP0295269A1 Layered metal oxides containing interlayer oxides and their synthesis.
12/20/1988US4792539 Process for producing clay derivatives having a porous structure and novel clay derivatives obtained by the process
12/20/1988US4792460 Exposure of mixture of silane (or germane) in carrier inert gas to electric discharges
12/20/1988CA1247073A1 Metal oxide stabilized chromatography packings
12/20/1988CA1246855A1 Water swellable clay composition and method to maintain stability in salt contaminated water
12/15/1988EP0245474A4 Organoclay Composition.
12/14/1988EP0294908A2 Improved process for the production of ultra high purity polycrystalline silicon
12/14/1988EP0294753A2 Organic substituted silicates and process for their preparation
12/14/1988CN88103256A Method of treating by silicopyrohydrolysis worn linings from hall-heroult electrolysis tanks
12/13/1988US4791088 Hydrocarbon conversion catalyst
12/13/1988US4790954 Reacting monodispersed monolayer hydroxide gels with hydrophilic organics; oil drilling
12/12/1988EP0290602A4 Process for surface treating clay minerals and resultant products.
12/07/1988EP0294300A1 Process for treating the linings of Hall-Heroult electrolytic cells by silicopyrohydrolysis
12/07/1988EP0294206A2 Spheroidal silica
12/07/1988EP0294047A1 Minimizing carbon content of semiconductor materials
12/07/1988EP0293640A2 Process for the production of crystalline sodium silicates having a layer structure
12/07/1988CN88101836A Flocced 2:1 layered silicates and water-resistant articles made therefrom
12/07/1988CN87104483A Plasma smelting process for silicon
12/06/1988US4789596 For batch or continuous crystallization by pulling to obtain single crystals for uniformly doped silicon wafers
12/06/1988US4789560 Diffusion stop method for forming silicon oxide during the fabrication of IC devices
12/06/1988US4789534 Pyroysis of metal amide
12/06/1988US4789389 Sintering dried gel formed from organosilicon compound; casting, drying, sintering, isostatic pressing
11/1988
11/30/1988EP0293032A2 Synthetic, crystalline, porous material containing oxides of silicon and boron
11/30/1988EP0293016A2 A process for manufacturing organoclays having enhanced gelling properties
11/30/1988EP0293009A2 Fluidity improver for positively-charging resin powder
11/29/1988US4787986 Crucibles
11/29/1988CA1245437A1 Radiopaque, low visual opacity dental composites containing non-vitreous microparticles
11/29/1988CA1245423A1 Shaped articles of silicate material, a process for their production and their use
11/23/1988EP0292363A2 Zeolites having an MFI-structure, based on silica and titanium oxide, and method for their synthesis
11/23/1988EP0292179A2 Method for producing ultra-high purity, optical quality, glass articles
11/22/1988US4786477 Vapor deposition
11/22/1988CA1245109A1 Method of forming amorphous polymeric halosilane films and products produced therefrom
11/22/1988CA1245106A1 Method for treating activated silicon powder
11/17/1988EP0290602A1 Process for surface treating clay minerals and resultant products.
11/16/1988EP0215921A4 Stabilized silica gel and process for making same.
11/15/1988US4784982 Magnesium zinc, aluminum silicate
11/15/1988US4784840 Cementing silicon particles on semiconductors
11/15/1988CA1244813A1 Production of a zeolite through continuous feeding of an agueous sodium silicate solution and an aqueous sodium aluminate solution, product thus made and its use in detergents
11/09/1988EP0270650A4 Synthetic alkali metal alumino-silicates, methods and uses, compositions and their methods of preparation.
11/08/1988CA1244302A1 Lightwave-guide manufacturing process
11/03/1988WO1988008407A1 Process for surface treating clay minerals and reactive intermediates produced by said process
11/03/1988DE3739578A1 Cyclone in the preparation of chlorosilanes
11/02/1988EP0289440A1 A method for the production of beta'-sialon based ceramic powders
11/02/1988EP0288638A1 Method for flocculating suspensions containing swelled layered chalcogenide
11/01/1988US4781906 Alkylation and isomerization catalysts, molecular sieve absorbers
11/01/1988US4781858 Cyclodextrin-silica composite and a method for the preparation thereof
11/01/1988US4781565 Apparatus for obtaining silicon from fluosilicic acid
10/1988
10/26/1988EP0287934A2 Deactivation of spent silicon powder