GB1199953A - Silicon Carbide - Google Patents
Silicon CarbideInfo
- Publication number
- GB1199953A GB1199953A GB23406/67A GB2340667A GB1199953A GB 1199953 A GB1199953 A GB 1199953A GB 23406/67 A GB23406/67 A GB 23406/67A GB 2340667 A GB2340667 A GB 2340667A GB 1199953 A GB1199953 A GB 1199953A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gel
- sio
- sif
- sic
- product
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/90—Carbides
- C01B32/914—Carbides of single elements
- C01B32/956—Silicon carbide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/90—Carbides
- C01B32/914—Carbides of single elements
- C01B32/956—Silicon carbide
- C01B32/963—Preparation from compounds containing silicon
- C01B32/97—Preparation from SiO or SiO2
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/50—Agglomerated particles
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/51—Particles with a specific particle size distribution
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Carbon And Carbon Compounds (AREA)
- Silicon Compounds (AREA)
Abstract
1,199,953. Silicon carbide. LAPORTE CHEMICALS Ltd. 13 May, 1968 [19 May, 1967], No. 23406/67. Heading C1A. #-Silicon carbide is prepared by forming a silica gel in the presence of an aqueous dispersion of carbon particles, dehydrating the carbon containing gel and heating the dehydrated gel under an inert atmosphere. The SiO 2 gel may be made by mixing a hydrolysable Si compound with the C particle dispersion, using, e.g. SiF 4' SiCl 4 , SiBr 4 , SiI 4 , SiHCl 3 or Si 2 Cl 6 . The preferred C particle size is 10- 1000 mÁ. The dispersion may be made in the presence of an anionic, cationic or non-ionic dispersing agent, e.g. alkali metal salts of sulphonic acids, by milling or ultrasonics; may contain up to 15% C by weight. The C : SiO 2 ratio in the product of gelling may be 1 : 1 to 1 : 6. The dehydration may be by I.R. radiation or as a preliminary to SiC forming heating. The gel may be heated under an atmosphere which is inert to the reactants or products, e.g. A, He and H 2 or using reduced pressure, suitably at 1100-1800 C. and may be under fluidized bed conditions. The product is usually particulate but some fibres may be used. In one process SiF 4 is used and the HF formed on hydrolysis may be used to produce further SiF 4 which is cycled. The SiC may be freed from SiO 2 + C by heating in air at 700 C. and then treating with HF. The product SiC has pigmentary properties and may be incorporated in paints and plastics.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB23406/67A GB1199953A (en) | 1967-05-19 | 1967-05-19 | Silicon Carbide |
| NL6806834A NL6806834A (en) | 1967-05-19 | 1968-05-15 | |
| FR1565919D FR1565919A (en) | 1967-05-19 | 1968-05-17 | |
| BE715312D BE715312A (en) | 1967-05-19 | 1968-05-17 | |
| DE19681767518 DE1767518A1 (en) | 1967-05-19 | 1968-05-17 | Process for the production of silicon carbide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB23406/67A GB1199953A (en) | 1967-05-19 | 1967-05-19 | Silicon Carbide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1199953A true GB1199953A (en) | 1970-07-22 |
Family
ID=10195112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23406/67A Expired GB1199953A (en) | 1967-05-19 | 1967-05-19 | Silicon Carbide |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE715312A (en) |
| DE (1) | DE1767518A1 (en) |
| FR (1) | FR1565919A (en) |
| GB (1) | GB1199953A (en) |
| NL (1) | NL6806834A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4377563A (en) * | 1979-11-22 | 1983-03-22 | Tokyo Shibaura Denki Kabushiki Kaisha | Method of preparing silicon carbide |
| US5256448A (en) * | 1990-10-25 | 1993-10-26 | British Technology Group Ltd. | Sol-gel method of making silicon carbide and of protecting a substrate |
| US8952189B2 (en) | 2009-04-08 | 2015-02-10 | Bayer Materialscience Ag | Process for preparing diaryl carbonates or alkyl aryl carbonates from dialkyl carbonates |
| WO2017180083A1 (en) * | 2016-04-15 | 2017-10-19 | Андрей ЦЫБА | A method for the industrial production of sic nanopowders and high quality sio-c nanocomposite material and equipment for implementing said method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4396587A (en) * | 1980-08-29 | 1983-08-02 | Asahi-Dow Limited | Method for manufacture of silicon nitride |
| JPS5788019A (en) * | 1980-11-13 | 1982-06-01 | Asahi Chem Ind Co Ltd | Manufacture of silicon carbide |
| US4971834A (en) * | 1989-06-29 | 1990-11-20 | Therm Incorporated | Process for preparing precursor for silicon carbide whiskers |
-
1967
- 1967-05-19 GB GB23406/67A patent/GB1199953A/en not_active Expired
-
1968
- 1968-05-15 NL NL6806834A patent/NL6806834A/xx unknown
- 1968-05-17 FR FR1565919D patent/FR1565919A/fr not_active Expired
- 1968-05-17 BE BE715312D patent/BE715312A/xx unknown
- 1968-05-17 DE DE19681767518 patent/DE1767518A1/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4377563A (en) * | 1979-11-22 | 1983-03-22 | Tokyo Shibaura Denki Kabushiki Kaisha | Method of preparing silicon carbide |
| US5256448A (en) * | 1990-10-25 | 1993-10-26 | British Technology Group Ltd. | Sol-gel method of making silicon carbide and of protecting a substrate |
| US8952189B2 (en) | 2009-04-08 | 2015-02-10 | Bayer Materialscience Ag | Process for preparing diaryl carbonates or alkyl aryl carbonates from dialkyl carbonates |
| WO2017180083A1 (en) * | 2016-04-15 | 2017-10-19 | Андрей ЦЫБА | A method for the industrial production of sic nanopowders and high quality sio-c nanocomposite material and equipment for implementing said method |
Also Published As
| Publication number | Publication date |
|---|---|
| BE715312A (en) | 1968-10-16 |
| FR1565919A (en) | 1969-05-02 |
| NL6806834A (en) | 1968-11-20 |
| DE1767518A1 (en) | 1971-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2630410A (en) | Nongelling aqueous silica sols stabilized with boron compounds | |
| US4274883A (en) | Aqueous dispersion of a hydrophobic silica | |
| US3346507A (en) | Process of preparing an organo-silica aerogel | |
| US3208823A (en) | Finely divided silica product and its method of preparation | |
| US3967563A (en) | Process for producing precipitated thickener silica | |
| GB1504977A (en) | Hydrophobising finely divided silica and silicates | |
| US3383172A (en) | Process for producing silica in the form of hollow spheres | |
| US3719607A (en) | Stable positively charged alumina coated silica sols and their preparation by postneutralization | |
| GB1236775A (en) | Process for the production of modified silica and silicates | |
| US2805955A (en) | Silica composition and production thereof | |
| ATE52944T1 (en) | PROCESS FOR THE PREPARATION OF AN ANTIMONY CONTAINING SILICON DIOXIDE SUPPORTED OXIDE CATALYST FOR USE IN A FLUID BED REACTION. | |
| GB1199953A (en) | Silicon Carbide | |
| US4595578A (en) | Stabilized silica gel and process for making same | |
| US3131072A (en) | Novel silica aerogels and processes for preparing same | |
| US3798174A (en) | Method of preparing thickening grade silica composition | |
| US2757073A (en) | Process for making pulverulent silica powder | |
| US2763533A (en) | Silica-containing gels | |
| US4156717A (en) | Process for producing precipitated thickener silica | |
| GB1365516A (en) | Process for the preparation of silica granulates | |
| JPH11256133A (en) | Ultraviolet light-screening agent and its production | |
| US3720532A (en) | Hydrophobic silica | |
| GB1096370A (en) | Improvements in or relating to methods of producing silica, and products thus obtained | |
| CN108928827A (en) | A method of improving white carbon black specific surface area and Kong Rong | |
| US3511605A (en) | Defluorination of pigmentary silica | |
| US3993497A (en) | Coating compositions containing precipitated silica |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |