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)
09/1981
09/15/1981US4289629 Removal of contaminants from strongly alkaline solution
09/15/1981US4289572 Method of closing silicon tubular bodies
09/08/1981US4288414 Process for chlorinating clays and bauxite
09/02/1981EP0034897A1 Process for producing chlorides of elements of group III, IV or V of periodic table
09/02/1981EP0034727A2 Crystalline isotactic zeolites, process for their preparation and their use as catalysts
09/02/1981EP0034695A1 Process for producing zeolite A
09/02/1981EP0034694A1 Process for producing crystalline zeolite A
09/01/1981US4287167 Novel harzburgite and preparation thereof
09/01/1981US4287086 Viscous organic systems containing an organophilic clay gellant without an organic dispersant therefor
09/01/1981CA1107940A1 Process for the preparation of silicon or ferrosilicon
08/1981
08/25/1981CA1107709A1 Preparation of zeolite zsm-35
08/19/1981EP0033843A1 Cerium-containing precipitated silica, process for producing same and masses, hardenable to elastomers, containing same
08/18/1981US4284601 Surfactant foams and their use
08/05/1981EP0033109A1 Process for the hydrothermal production of sodium silicate solutions in a static reaction vessel
08/05/1981EP0033108A1 Process for the hydrothermal production of sodium silicate solutions
08/04/1981US4282196 Purification
08/04/1981CA1106346A1 Pillared interlayered clay materials useful as catalysts and sorbents
08/04/1981CA1106143A1 Method of making an amorphous silicon dioxide free of metal ions
07/1981
07/29/1981EP0032575A1 Solar power plant
07/28/1981US4280845 Cordierite ceramic
07/28/1981CA1105798A1 Organophilic clays and thixotropic polyester compositions containing the same
07/21/1981US4279879 Silica gel
07/21/1981US4279780 Method of preparing catalyst supports
07/21/1981CA1105348A1 Oil base fluids with organophilic clays having enhanced dispersibility
07/14/1981US4278649 Continuous process for the production of amorphous sodium aluminosilicate in an elongated reaction zone
07/14/1981CA1105043A1 Organophilic clay gellant
07/14/1981CA1104797A1 Fluidized bed reactor
07/08/1981EP0031731A2 Control of the hydrogen bonding in reactively sputtered amorphous silicon
07/08/1981EP0031436A2 A method for the cleavage of siloxanes
07/07/1981US4277457 Two different x-ray diffraction patterns; drying agents; ion exchangers
07/07/1981US4277456 Mineral substance based on a reversibly swellable tri-laminar mineral developed to be crystalline over a large area and having crystal layers separated from one another
07/01/1981EP0031288A2 Organosilicon compositions containing precipitated silica with particular reinforcing properties
07/01/1981EP0031271A1 Precipitated silica especially utilizable as reinforcing filling
06/1981
06/30/1981US4276274 Process for the production of finely divided oxides of metals or silicon
06/30/1981CA1103939A1 Hydrometallurgical process for the treatment of soluble silicate-bearing materials
06/30/1981CA1103901A1 Disposal of waste gases from production of aluminum chloride
06/24/1981EP0030798A1 Low temperature process for depositing oxide layers by photochemical vapor deposition
06/24/1981EP0030751A1 A process for the preparation of iron crystalline silicates
06/23/1981US4275048 Process for the preparation of fine droplet-reacted aluminosilicates of the smallest particle size
06/23/1981US4274883 Aqueous dispersion of a hydrophobic silica
06/23/1981CA1103650A1 Treatment of silica
06/16/1981US4273589 Precipitated silicic acid, method and compositions containing same
06/16/1981CA1103226A1 Hydrosol and catalyst preparation
06/16/1981CA1103124A1 Preparation of aqueous suspensions of finely-divided water-insoluble silicate cation-exchangers
06/10/1981EP0030162A2 Amorphous silicon MIS device
06/10/1981EP0029879A2 Process and apparatus for the thermal recovery of metallic carbides or metals
06/09/1981US4272509 Abrasive, controlled particle size
06/09/1981US4272488 Apparatus for producing and casting liquid silicon
06/09/1981CA1102886A1 Arc heater method for the production of single crystal silicon
06/03/1981EP0029625A1 Process for the purification of water
06/03/1981EP0029590A1 Method for producing optical glass
06/02/1981US4271135 Preparation of finely-divided, water-insoluble silicate cation-exchangers with a narrow particle size spectra
06/02/1981CA1102347A1 Removal of metal from solution
05/1981
05/27/1981EP0029182A1 Semicontinuous process for the manufacture of pure silicon
05/27/1981EP0029157A1 Process for producing silicon for use in semiconductor components from quartz sand and its use in solar cells
05/26/1981US4269620 Process for the preparation of silicon or ferrosilicon
05/26/1981CA1101825A1 Zeolites
05/26/1981CA1101635A1 Process for the preparation of amorphous synthetic silica; application to vulcanizates
05/26/1981CA1101633A1 Crystalline borosilicate (ams-1b) and process use
05/20/1981EP0028811A1 Process for purifying crude silicon
05/12/1981US4267158 Continuous process for the production of amorphouse sodium aluminosilicate
05/12/1981US4266978 By forming a polymer from a metal halide and a metal alkoxide, heating the polymer to produce a precursor gel
05/06/1981EP0028208A1 A process for the preparation of silicon or ferrosilicon
05/06/1981EP0028009A2 A method of preparing a copper catalyzed silicon reaction mass
05/05/1981US4265859 Apparatus for producing semiconductor grade silicon and replenishing the melt of a crystal growth system
05/05/1981US4265720 Storage material for hydrogen
05/05/1981CA1100255A1 Pigment preparation and use in coating compositions
04/1981
04/29/1981EP0027736A1 Method of synthesising sodium zincosilicate and stannosilicate and ion-exchanged products thereof,detergent formulations containing the sodium zincosilicate or stannosilicate products and catalysts or catalyst supports containing the ion-exchanged products
04/28/1981US4264564 Process for the manufacture of high purity silicic acid
04/28/1981US4264562 Activating sodium silicate with alumina and reacting with sodium aluminates
04/22/1981EP0027228A1 Process for the continuous production of particulate zeolitic sodium-aluminosilicates
04/21/1981CA1099493A1 Liquid silicon casting control mechanism and method
04/21/1981CA1099485A1 Process for preparing amorphous sodium aluminosilicate base exchange materials
04/16/1981WO1981001000A1 Process for producing calcium silicate moldings
04/15/1981EP0026860A1 Process for producing silicon tetrachloride
04/14/1981CA1099321A1 Arc heater production of silicon involving alkali or alkaline-earth metals
04/08/1981EP0026259A1 Process for the defluorination of phosphoric acid and phosphoric acid made thereby
04/07/1981USRE30568 Containing barium, magnesium and/or calcium
04/07/1981US4260495 Process for the filtration of zeolite suspensions
04/07/1981US4260454 Precipitated siliceous products used in paper
04/01/1981EP0025900A1 Process for producing shaped spherical bodies based on Al2O3 and their use
04/01/1981EP0025858A1 Rechargeable storage means for binding gaseous hydrogen
03/1981
03/31/1981US4259146 Method of heat treating chrysotile asbestos fibres
03/24/1981US4258023 Process for the pyrogenous production of very finely divided oxides of a metal and/or of a metalloid
03/24/1981CA1098104A1 Silica-containing material and manufacture of hydrocarbons catalysed thereby
03/24/1981CA1098011A1 Method of manufacturing high-purity silicon rods having a uniform sectional shape
03/18/1981EP0025051A1 Process for the production of an aqueous dispersion of poly(organic-polysulfide-silicate)copolymer
03/17/1981US4256717 Fractional crystallization from melt containing tin, zinc, aluminum, silver and/or lead solvent
03/17/1981US4256711 Catalysis
03/17/1981CA1097480A1 Luminophores emitting in the ultra-violet range
03/11/1981EP0024614A1 Process for purifying crude silicon
03/11/1981EP0024529A1 Silo for vehicles
03/10/1981US4255463 Method of deposition of silicon in fine crystalline form
03/10/1981US4255276 Silicatic complexing agent for alkaline earth ions and method of preparing same
03/10/1981CA1097033A1 Method of increasing the bulk density of silica dust
03/10/1981CA1097030A1 Amorphous silica, products thereof and methods of preparing the same
03/03/1981US4253849 Crystallization, agglomeration, hydration
02/1981
02/24/1981US4252780 Process for working up hydrolyzable and/or water-soluble compounds
02/24/1981US4252779 Synthetic imogolite
02/24/1981CA1096328A1 Plasma method of producing selective particle sized oxide, product produced thereby and apparatus therefor
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