Patents
Patents for C01B 33 - Silicon; Compounds thereof (28,579)
01/1979
01/02/1979US4132560 Pigmented microporous silica microspheres
01/02/1979CA1045309A1 Calcium carboaluminates and tobermorites
12/1978
12/26/1978US4131659 Process for producing large-size, self-supporting plates of silicon
12/26/1978US4131638 Process for the manufacture of calcium silicate hydrate objects
12/19/1978US4130632 Process for the manufacture of trichlorosilane and silicon tetrachloride
12/05/1978US4128499 Lewis acid-fluorine compounds of carbon
11/1978
11/28/1978US4127641 Process for the preparation of precipitated silicas having morphology similar to pyrogenic silicas
11/28/1978US4127437 Process for etching SiO2 utilizing HF vapor and an organic catalyst
11/21/1978US4126424 Method of compacting silica dust
11/21/1978US4126423 Method of increasing the bulk density of silica dust
11/14/1978US4125643 Process for depositing elemental silicon semiconductor material from a gas phase
11/07/1978US4124471 Controlling silica sol particle size
11/07/1978US4124410 Silicon solar cells with low-cost substrates
11/07/1978US4123989 Manufacture of silicon on the inside of a tube
11/07/1978CA1041896A1 Co-current absorber for recovering inorganic compounds from plant effluents
10/1978
10/31/1978US4123390 Molecular sieves
10/31/1978US4123229 Method and apparatus for making vitreous silica
10/24/1978US4122349 Europium activated fluosilicates
10/24/1978US4122161 Amorphous precipitate silica compositions
10/24/1978US4122031 Complex alkali metal-metal silicate material
10/24/1978CA1040838A1 Process for the production of ammonium fluoride from fluosilicic acid
10/24/1978CA1040808A1 Calcium trisulphaluminate compositions_
10/17/1978US4120938 Contacting tetraalkoxysilane with an aqueous alkali metal hydroxide solution
10/17/1978US4120937 Process for the production of halosilicon acids and organic silicon acid compounds and resinous products
10/10/1978US4119744 Method of manufacturing semiconductor devices in which a layer of semiconductor material is provided on a substrate
10/03/1978US4118464 Process for separating silica from silicate-bearing materials
10/03/1978US4118463 Preparation of highly alkaline silicates
09/1978
09/26/1978US4117103 Crystals with divalent cations, germanium, oxygen
09/26/1978US4117094 From silicon tetrahalide
09/26/1978US4117093 Method of making an amorphous silicon dioxide free of metal ions
09/26/1978US4116866 Reaction product of castor-fatty propylamido benzyl dialkyl ammonium compound and smectite clay
09/26/1978CA1039265A1 Catalyst support and method for preparing the same
09/19/1978CA1038937A1 Plasma heat treatment of particulate material
09/19/1978CA1038850A1 Method for producing open framework zeolites
09/12/1978US4113845 Disproportionation of chlorosilane
09/12/1978CA1038363A1 Laminar heavy metal aluminosillcates
09/05/1978US4112129 Diatomite, calcium silicate, magnesium silicate
09/05/1978US4112057 Process for purifying halogenosilanes
09/05/1978US4111843 Silica-alumina and silica catalyst support bodies
08/1978
08/22/1978US4109030 Method for thermally oxidizing silicon
08/22/1978US4108964 Process for the manufacture of silicon dioxide
08/22/1978US4108881 Synthesis of zeolite ZSM-11
08/22/1978US4108714 Process for producing plate-shaped silicon bodies for solar cells
08/22/1978CA1037017A1 Olefin hydration catalyst
08/15/1978US4107195 Butanediamine
08/15/1978US4106918 Method of recovering fluorine from vapor of crude phosphoric acid solution
08/15/1978CA1036623A1 Compositions comprising inorganic metal compounds and water-soluble organic silicone compounds
08/08/1978US4105757 Amorphous precipitated siliceous pigments for cosmetic or dentifrice use and methods for their production
08/08/1978US4105578 Organophilic clay having enhanced dispersibility
08/01/1978US4104363 Method for preparation of perfectly spherical particles of silicagel with controlled size and controlled pore dimensions
08/01/1978US4104294 Crystalline silicates and method for preparing same
07/1978
07/25/1978US4102985 Reaction of silicon tetrahalide
07/25/1978US4102767 Arc heater method for the production of single crystal silicon
07/25/1978US4102766 Alkali metal or an alkaline-earth metal reductant, silicon halide, doping agent reacted to produce metal salts and liquid silicon
07/25/1978US4102765 Arc heater production of silicon involving alkali or alkaline-earth metals
07/25/1978US4102764 High purity silicon production by arc heater reduction of silicon intermediates
07/18/1978US4101624 Method of casting silicon
07/11/1978US4099936 Process for the purification of silane
07/04/1978US4098714 Water softening materials
07/04/1978US4098676 Alumina gel, silica sol, metal hydroxides, crystallization
06/1978
06/27/1978US4097584 Purification by treatment with hydrogen containing gas in water
06/27/1978US4097329 Process for the production of monocrystalline silicon rods
06/20/1978US4096161 Process for the preparation of halogenosilanes
06/13/1978US4094771 Process for preparation of a sprayable precipitated silicic acid suspension
06/13/1978US4094731 Controlled crystallization of melt; removal of iron impurity
06/13/1978US4094690 Liquid composition
06/06/1978US4093502 Process for synthesizing and growing single crystalline beryl
05/1978
05/30/1978US4092446 Reacting with hydrogen halide
05/23/1978US4090887 Pigmented microporous silica microspheres produced by a water in oil emulsion
05/16/1978US4089932 Process for the production of spherical silica gel
05/16/1978US4089929 Hydrothermal crystallization in the presence of an alkali metal hydroxide and a trialkanolamine
05/09/1978US4088593 Washing, rinsing, cleaning agent
04/1978
04/25/1978US4086326 Process for the production of alkali metal cyanide silicate compounds and cyanide silicate compounds
04/25/1978US4086322 Acidulation of phosphate rock with solution containing primary potassium phosphate, precipitation of monocalcium phosphate and potassium fluosilicate
04/11/1978US4084024 Process for the production of silicon of high purity
04/11/1978US4083938 Process for the production of silicoformic cyanide and silicoformic dicyanide
04/11/1978US4083927 Boron chloride catalyst, preferential chlorination of aluminum over silica
04/11/1978US4083923 From clays bauxite, and laterite, carbo-chlorination
03/1978
03/28/1978US4081407 Silica, chromium compound, calining, ethylene polymerization
03/07/1978US4078043 Process for preparing calcium fluoride from hexafluoro silicic acid and production of silicic acid gel or active silicic acid from said calcium fluoride
03/07/1978US4077938 Sol of ultra-fine particles of layered structure material
02/1978
02/28/1978US4076842 Crystalline zeolite ZSM-23 and synthesis thereof
02/28/1978US4076651 Agglomerated siliceous bodies
02/28/1978US4076549 Amorphous precipitated siliceous pigments for cosmetic or dentifrice use and methods for their preparation
02/21/1978US4075055 Carbon-containing die
02/14/1978US4073865 Hydrophobic
02/14/1978US4073859 Technique for making silicon U-shaped members
02/07/1978US4072796 Process for hydrophobization of finely divided silica and silicates using prepolycondensed organosilane
02/07/1978US4072637 Process for the production of polyurethane resins and foams utilizing silico-formic acid
02/07/1978US4072622 Stable aqueous suspension of water-insoluble, calcium-binding aluminosilicates and organic suspending agents
01/1978
01/24/1978US4070444 Low cost, high volume silicon purification process
01/24/1978US4070283 Controlled surface porosity particles and a method for their production
01/24/1978US4070260 Process of sulfuric acid leaching silicated zinc ores
01/17/1978US4069391 Catalytic polymerization of allyl halide to polyallyl halide, hydrolysis to polyallyl alcohol, silicon acid
01/10/1978US4068024 Process for preparing finely divided hydrophobic oxide particles
01/10/1978US4068020 Pyrolysis
01/10/1978US4067954 Process for the production of finely divided silicon dioxide having a large specific surface
01/10/1978US4067819 Synthetic tetra-silicic mica and water sol thereof
01/10/1978US4067746 Amorphous precipitated silicas and methods for their preparation
12/1977
12/27/1977US4065533 Process for the continuous production of silicon rods or tubes by gaseous deposition into a flexible wound band