| Patents for C01B 33 - Silicon; Compounds thereof (28,579) |
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| 01/16/1991 | CN1011221B Quinary and senary molecular sieve compositions |
| 01/15/1991 | US4985579 Reacting with a Hydrogen Halide, Separation by Distillation |
| 01/15/1991 | US4985385 Method of preparing a catalyst precursor comprised of calcined nickel-aluminum feitknecht compound/non-calcined alumino-silicate clay/alkaline earth and/or rear earth metal compound |
| 01/15/1991 | US4985317 Electrochemical cells, microstructure |
| 01/12/1991 | CA2020534A1 Low/density/low surface area silica-alumina composition |
| 01/10/1991 | DE3922508A1 Producing silicic acid and acid solns. of aluminium salts, etc. - by reacting glassy residue from fossil fuel reactors with mineral acids |
| 01/09/1991 | EP0407262A1 Silica of controlled porosity and process for obtaining it |
| 01/09/1991 | EP0406474A2 Synthetic crystalline aluminosilicate and process for its preparation |
| 01/09/1991 | EP0395714A4 Processes for microemulsion polymerization employing novel microemulsion systems |
| 01/09/1991 | CN1048370A Process for production of silicasol |
| 01/08/1991 | WO1991000844A1 Zeolite (b)ssz-24 |
| 01/08/1991 | WO1991000843A1 Zeolite ssz-33 |
| 01/08/1991 | WO1991000777A1 Low-aluminum boron beta zeolite |
| 01/08/1991 | US4983370 Purified quartz and process for purifying quartz |
| 01/08/1991 | US4983369 Hydrolysis of silica precursor in alcohol, ammonia, water solution |
| 01/08/1991 | CA2063991A1 Zeolite ssz-33 |
| 01/08/1991 | CA2062947A1 Low-aluminum boron beta zeolite |
| 01/08/1991 | CA2062799A1 Zeolite |
| 01/02/1991 | CA1278417C Process for manufacture of metal oxide |
| 01/01/1991 | US4981831 Twice-aged porous inorganic oxides, catalysts, and polymerization processes |
| 01/01/1991 | US4981819 Phase transfer catalyst |
| 01/01/1991 | US4981675 Polymeric basic aluminum silicate-sulphate |
| 01/01/1991 | US4981668 Silicon carbide as a raw material for silicon production |
| 01/01/1991 | US4981664 Method of production of high purity silica and ammonium fluoride |
| 12/27/1990 | EP0404219A1 Novel crystalline aluminophosphates and related compounds |
| 12/25/1990 | US4980323 Which is magnesium exchanged, by calcining to collapse framework, shaping the amorphous powder, sintering |
| 12/25/1990 | US4980143 Heating mixture of hydrogen chloride, chlorine, silicon, lower chlorosilanes |
| 12/25/1990 | US4979971 Method for producing glass preform for optical fiber |
| 12/23/1990 | CA2019550A1 Crystalline aluminophosphates and related compounds |
| 12/19/1990 | EP0402801A2 Method for the preparation of crystalline and zeolitic aluminosilicates |
| 12/19/1990 | EP0402610A2 Process for the preparation of silica glass powders |
| 12/18/1990 | US4978516 Process for treating talc |
| 12/14/1990 | CA2018690A1 Method for the preparation of crystalline and zeolitic aluminosilicates |
| 12/11/1990 | US4976944 Purification of silane gas |
| 12/11/1990 | US4976943 Spherical, hydrophilic silica, method of its preparation and use |
| 12/11/1990 | US4976942 Removal of oxygen impurity by using nickel arsenide, phosphide, boride or selenide |
| 12/11/1990 | US4976933 Hydrogen stream purification |
| 12/11/1990 | CA1277650C Lanthanum silicate catalyst composite, its preparation and itsuse for conversion of alkanols to light olefins |
| 12/06/1990 | DE4017776A1 Thermoelectric transducer of doped n-conducting iron silicide - with large seebeck coefft. contg. platinum, palladium and/or nickel and opt. cobalt as dopant |
| 12/05/1990 | EP0401047A2 Detergent composition |
| 12/05/1990 | EP0400739A2 Defect-rich crystalline (metallo) silicates and process for preparing such (metallo) silicates |
| 12/04/1990 | US4975405 Structure has specific surface area, pore volume; as aqueous suspension |
| 12/04/1990 | US4975226 Process for making green briquettes for forming Si or SiC |
| 12/02/1990 | CA2018009A1 Defect-rich crystalline (metallo) silicates and process for preparing such (metallo) silicates |
| 11/28/1990 | EP0398998A1 Synthetic porous crystalline material, its synthesis and use. |
| 11/28/1990 | CN1010576B Preparation method of compound crystal aluminium silicate |
| 11/27/1990 | US4973462 Precipitaton from alkali silicate and mineral acid solution |
| 11/22/1990 | EP0398429A2 Synthetic saponite-derivatives, a method for preparing such saponites and their use in catalytic (hydro) conversions |
| 11/22/1990 | EP0397684A1 Process for forming fine ceramic powders and products thereof |
| 11/21/1990 | CN1047067A Preparing process for non-hydrate sodium metasilicate |
| 11/21/1990 | CN1047066A Silica compatible with organic amines use in dentifrice compositions |
| 11/20/1990 | US4971697 Composite chromatographic article of silica on a support |
| 11/20/1990 | CA1276587C Divided silicon purification process under the cover of plasma |
| 11/19/1990 | CA2016993A1 Synthetic saponite-derivatives, a method for preparing such saponites and their use in catalytic (hydro) conversions |
| 11/15/1990 | WO1990013513A1 Combustion synthesis of materials using microwave energy |
| 11/14/1990 | CN1046917A Spheroid silicon dioxide, process of preparation and use for reinforced elastic body thereof |
| 11/14/1990 | CN1046877A Silica compatible with metallic cations for dentifrice compositions |
| 11/07/1990 | EP0396460A1 Silica for dental care compositions compatible especially with metallic cations |
| 11/07/1990 | EP0396459A1 Silica for dentifrice compositions which is compatible with organic amino-compounds |
| 11/07/1990 | EP0396450A1 Silica beads, process for their preparation and their use for reinforcing elastomers |
| 11/07/1990 | EP0396242A2 The controlled precipitation and use of amorphous silicia from geothermal fluid or aqueous media having a silicic acid concentration |
| 11/07/1990 | EP0396237A1 Electrorheological fluids |
| 11/07/1990 | EP0396076A1 Thermal insulating materials based on pigmentic silicia aerogels |
| 11/07/1990 | EP0395714A1 Processes for microemulsion polymerization employing novel microemulsion systems |
| 11/07/1990 | CN1010301B Production method of binder-free spherical model-a molecular sieves |
| 11/06/1990 | US4968652 Pillared layered silicate compositions containing pillars of silica and metal oxide and their preparation |
| 11/06/1990 | CA1276003C Spheroidal silica |
| 11/04/1990 | CA2013625A1 Cationic processing of mineral ores |
| 10/31/1990 | CN1046508A Method for producing sodium silicate using electric smelting kiln |
| 10/31/1990 | CN1046507A Method for making aluminium polychloride and white carbon from kaolin |
| 10/24/1990 | EP0393831A1 Electrorheological fluids |
| 10/24/1990 | EP0393830A1 Electrorheological fluids |
| 10/24/1990 | EP0393356A1 Pressed bodies based on pyrogenic silicon dioxide, process for their preparation and their use |
| 10/24/1990 | EP0393138A1 Crystalline molecular sieve |
| 10/23/1990 | US4965061 Process for removing fluoride from a wastewater and producing hydrofluoric acid therefrom |
| 10/23/1990 | CA1275398C Porous silica microspheres having silanol-enriched and silanized surfaces |
| 10/22/1990 | WO1990012765A1 Opacifying kaolin pigments and process for making same |
| 10/18/1990 | WO1990011858A1 Low temperature method of forming materials using one or more metal reactants and a halogen-containing reactant to form one or more reactive intermediates |
| 10/18/1990 | WO1990011857A1 Method and reactor for obtaining powdered refractory material |
| 10/18/1990 | WO1990011828A1 Method for intercalating organic-swelled layered metal chalcogenide with polymer chalogenide by treatment with organic, hydrolyzable, polymeric chalcogenide precursor wherein organic hydrolysis by-products are removed |
| 10/18/1990 | WO1990011827A1 Method for intercalating organic-swelled layered metal chalcogenide with a polymeric chalcogenide by plural treatments with polymeric chalcogenide precursor |
| 10/16/1990 | US4963436 Coated porous mullite bodies |
| 10/16/1990 | US4963337 Zeolite SSZ-33 |
| 10/10/1990 | EP0391774A2 Process for the synthesis of type silicoaluminophosphate molecular sieve precursors, precursors therefrom and their application in the preparation of these molecular sieves |
| 10/10/1990 | EP0391448A2 Method for production of powder of fine inorganic particles |
| 10/10/1990 | EP0391447A2 Method for production of inorganic oxide particles |
| 10/09/1990 | US4961919 Monocrystalline material having garnet structure |
| 10/09/1990 | US4961889 Process for producing inorganic fiber |
| 10/09/1990 | CA1275087A1 Multimetallic pillared interlayered clay products and processes of making them |
| 10/04/1990 | WO1990011246A1 Apparatus, process, and composition for in-situ generation of polyhydridic compounds of group iv-vi elements |
| 10/03/1990 | EP0390257A1 Process for preparing a purified mineral coating |
| 10/03/1990 | CN1045754A Aqueous colloidal dispersion of fumed silica, acid and stabilizer |
| 10/03/1990 | CN1045753A Aqueous colloidal dispersion of fumed silica without stabilizer |
| 10/02/1990 | US4960581 Reacting metal or metal oxide with fluorine gas or nitrogen trifluoride; solid metal fluoride as molding auxiliary |
| 10/02/1990 | US4960573 Recovering method of catalytic component and carrier from waste catalyst |
| 10/02/1990 | CA1274672A1 Process for the reduction of fluorides of silicon, titanium, zirconium or uranium |
| 10/02/1990 | CA1274658A2 Solid, transparent, non-vitreous, ceramic microspheres |
| 09/27/1990 | DE4006392A1 Waessrige colloidale dispersion aus in der gasphase hergestelltem siliciumdioxid, aus einer saeure und aus einem stabilisator, sowie ein verfahren zu ihrer hertellung Aqueous colloidal dispersion of the gas phase-produced silicon dioxide, from an acid and a stabilizer, as well as a process for their development hertel |
| 09/26/1990 | EP0389128A2 Process for producing high purity fused quartz powder |
| 09/26/1990 | CN2062726U Electrofusion hearth for potassium silicate |