BR8902288A - Acido silicico hidrofilo em forma de esferas,processo para a sua producao e o seu emprego - Google Patents
Acido silicico hidrofilo em forma de esferas,processo para a sua producao e o seu empregoInfo
- Publication number
- BR8902288A BR8902288A BR898902288A BR8902288A BR8902288A BR 8902288 A BR8902288 A BR 8902288A BR 898902288 A BR898902288 A BR 898902288A BR 8902288 A BR8902288 A BR 8902288A BR 8902288 A BR8902288 A BR 8902288A
- Authority
- BR
- Brazil
- Prior art keywords
- hydrophyl
- job
- production
- silicic acid
- sphere form
- Prior art date
Links
- LRCFXGAMWKDGLA-UHFFFAOYSA-N dioxosilane;hydrate Chemical compound O.O=[Si]=O LRCFXGAMWKDGLA-UHFFFAOYSA-N 0.000 title 1
- 235000012239 silicon dioxide Nutrition 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
- C01B33/181—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process
- C01B33/183—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process by oxidation or hydrolysis in the vapour phase of silicon compounds such as halides, trichlorosilane, monosilane
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/02—Amorphous compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/32—Spheres
-
- 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
- C01P2004/61—Micrometer sized, i.e. from 1-100 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
- C01P2004/62—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
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- 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
- C01P2006/90—Other properties not specified above
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Silicon Compounds (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3817045 | 1988-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR8902288A true BR8902288A (pt) | 1990-01-09 |
Family
ID=6354684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR898902288A BR8902288A (pt) | 1988-05-19 | 1989-05-17 | Acido silicico hidrofilo em forma de esferas,processo para a sua producao e o seu emprego |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4976943A (pt) |
| JP (1) | JPH0238306A (pt) |
| KR (1) | KR910004832B1 (pt) |
| BR (1) | BR8902288A (pt) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1010672A1 (en) | 1998-12-17 | 2000-06-21 | PIRELLI CAVI E SISTEMI S.p.A. | Method and apparatus for forming an optical fiber preform by combustionless hydrolysis |
| JP5640920B2 (ja) * | 2011-08-18 | 2014-12-17 | 信越化学工業株式会社 | チタニアドープ石英ガラス及びその製造方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE13400C (de) * | R. SCHNEIDER in Düsseldorf | Neuerungen an dem durch Patent 108866 geschützten Mahlwerk mit konoidischem Läufer | ||
| CA662036A (en) * | 1963-04-30 | L. Flemmert Gosta | Production of hydrophilic silicon dioxide | |
| DE973859C (de) * | 1951-10-31 | 1960-06-30 | Dow Corning | Verfahren zur Herstellung feinverteilter hydrophober Kieselsaeure |
| JPH01145317A (ja) * | 1987-12-01 | 1989-06-07 | Nippon Shokubai Kagaku Kogyo Co Ltd | 真球状シリカ微粒子の製法 |
-
1989
- 1989-05-12 US US07/351,054 patent/US4976943A/en not_active Expired - Fee Related
- 1989-05-17 BR BR898902288A patent/BR8902288A/pt not_active Application Discontinuation
- 1989-05-17 KR KR1019890006567A patent/KR910004832B1/ko not_active IP Right Cessation
- 1989-05-18 JP JP1123017A patent/JPH0238306A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| KR910004832B1 (ko) | 1991-07-13 |
| JPH0563409B2 (pt) | 1993-09-10 |
| JPH0238306A (ja) | 1990-02-07 |
| KR900017909A (ko) | 1990-12-20 |
| US4976943A (en) | 1990-12-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FA2 | Application deemed withdrawn (art. 19(5)) |