FR2447887B1 - - Google Patents
Info
- Publication number
- FR2447887B1 FR2447887B1 FR8000062A FR8000062A FR2447887B1 FR 2447887 B1 FR2447887 B1 FR 2447887B1 FR 8000062 A FR8000062 A FR 8000062A FR 8000062 A FR8000062 A FR 8000062A FR 2447887 B1 FR2447887 B1 FR 2447887B1
- Authority
- FR
- France
- Prior art keywords
- flame
- reaction
- silicas
- reaction mixture
- adjusted independently
- 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
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 230000008719 thickening Effects 0.000 abstract 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
- 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
- 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
- C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Silicon Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792904199 DE2904199A1 (de) | 1979-02-05 | 1979-02-05 | Verfahren zur gelenkten herstellung von kieselsaeure mittels flammenhydrolyse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2447887A1 FR2447887A1 (fr) | 1980-08-29 |
| FR2447887B1 true FR2447887B1 (OSRAM) | 1984-09-07 |
Family
ID=6062146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8000062A Granted FR2447887A1 (fr) | 1979-02-05 | 1980-01-03 | Procede pour la fabrication dirigee d'acide silicique par hydrolyse en flamme |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP0015315B1 (OSRAM) |
| JP (1) | JPS55104912A (OSRAM) |
| AT (2) | ATE4303T1 (OSRAM) |
| BE (1) | BE881534A (OSRAM) |
| BR (1) | BR8000517A (OSRAM) |
| CA (1) | CA1179477A (OSRAM) |
| CH (1) | CH642931A5 (OSRAM) |
| DE (2) | DE2904199A1 (OSRAM) |
| FR (1) | FR2447887A1 (OSRAM) |
| GB (1) | GB2044738B (OSRAM) |
| IT (1) | IT7969244A0 (OSRAM) |
| LU (1) | LU81909A1 (OSRAM) |
| NL (1) | NL7908270A (OSRAM) |
| SE (1) | SE8000877L (OSRAM) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3016010C2 (de) * | 1980-04-25 | 1985-01-10 | Degussa Ag, 6000 Frankfurt | Verfahren zur pyrogenen Herstellung von Kieselsäure |
| DE3028364C2 (de) * | 1980-07-26 | 1983-07-21 | Degussa Ag, 6000 Frankfurt | Verfahren und Vorrichtung zur pyrogenen Herstellung von Siliciumdioxid |
| JPS5788020A (en) * | 1980-11-14 | 1982-06-01 | Ube Ind Ltd | Manufacture of very finely grained anhydrous silica |
| GB8905966D0 (en) * | 1989-03-15 | 1989-04-26 | Tsl Group Plc | Improved vitreous silica products |
| DE10163939A1 (de) * | 2001-12-22 | 2003-07-10 | Degussa | Schicht erhalten aus einer wässerigen Dispersion enthaltend flammenhydrolytisch hergestelltes Silicium-Titan-Mischoxidpulver |
| DE10312970A1 (de) * | 2003-03-24 | 2004-10-14 | Degussa Ag | Pyrogenes Siliciumdioxidpulver und Dispersion hiervon |
| DE10326049A1 (de) * | 2003-06-10 | 2004-12-30 | Degussa Ag | Flammenhydrolytisch hergestelltes Siliciumdioxid, Verfahren zu seiner Herstellung und Verwendung |
| DE102005001408A1 (de) * | 2005-01-12 | 2006-07-20 | Degussa Ag | Pyrogen hergestelltes Siliciumdioxidpulver |
| US11299417B2 (en) | 2015-12-18 | 2022-04-12 | Heraeus Quarzglas Gmbh & Co. Kg | Preparation of a quartz glass body in a melting crucible of refractory metal |
| CN108698887B (zh) | 2015-12-18 | 2022-01-21 | 贺利氏石英玻璃有限两合公司 | 由均质石英玻璃制得的玻璃纤维和预成形品 |
| CN108698883A (zh) | 2015-12-18 | 2018-10-23 | 贺利氏石英玻璃有限两合公司 | 石英玻璃制备中的二氧化硅的喷雾造粒 |
| WO2017103131A1 (de) | 2015-12-18 | 2017-06-22 | Heraeus Quarzglas Gmbh & Co. Kg | Verringern des erdalkalimetallgehalts von siliziumdioxidgranulat durch behandlung von kohlenstoffdotiertem siliziumdioxidgranulat bei hoher temperatur |
| US10618833B2 (en) | 2015-12-18 | 2020-04-14 | Heraeus Quarzglas Gmbh & Co. Kg | Preparation of a synthetic quartz glass grain |
| WO2017103123A2 (de) | 2015-12-18 | 2017-06-22 | Heraeus Quarzglas Gmbh & Co. Kg | Herstellung von quarzglaskörpern mit taupunktkontrolle im schmelzofen |
| WO2017103160A1 (de) | 2015-12-18 | 2017-06-22 | Heraeus Quarzglas Gmbh & Co. Kg | Herstellung von quarzglaskörpern aus siliziumdioxidgranulat |
| TWI840318B (zh) | 2015-12-18 | 2024-05-01 | 德商何瑞斯廓格拉斯公司 | 石英玻璃體、光導、施照體、成型體及製備彼等之方法及矽組分之用途 |
| US10730780B2 (en) | 2015-12-18 | 2020-08-04 | Heraeus Quarzglas Gmbh & Co. Kg | Preparation of a quartz glass body in a multi-chamber oven |
| CN108698880B (zh) | 2015-12-18 | 2023-05-02 | 贺利氏石英玻璃有限两合公司 | 不透明石英玻璃体的制备 |
| WO2025098829A1 (en) | 2023-11-08 | 2025-05-15 | Evonik Operations Gmbh | Process for manufacturing metal oxides and/or metalloid oxides |
| WO2025098830A1 (en) | 2023-11-08 | 2025-05-15 | Evonik Operations Gmbh | Process for producing pyrogenic metal oxides and metalloid oxides |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1967235A (en) * | 1931-09-08 | 1934-07-24 | Karl A Ferkel | Method and apparatus for production of metal oxides |
| CH221309A (de) * | 1941-12-03 | 1942-05-31 | Hans Dr Preis | Verfahren und Vorrichtung zur Herstellung eines fein verteilten Oxydes derjenigen Elemente der Gruppe IVa des periodischen Systems, welche zur Bildung flüchtiger Chloride befähigt sind. |
| US2488440A (en) * | 1946-11-30 | 1949-11-15 | Du Pont | Titanium dioxide pigment production |
| US3130008A (en) * | 1949-11-23 | 1964-04-21 | Cabot Corp | Method of preparing metallic oxides by hydrolysis of metallic halides |
| DE974723C (de) * | 1950-10-02 | 1961-04-13 | Albrecht-Wolf Mantzel | Fahrzeugrad mit ringfoermigen, elastischen Zwischengliedern |
| BE508951A (OSRAM) * | 1951-02-07 | |||
| DE952891C (de) * | 1954-01-23 | 1956-11-22 | Degussa | Verfahren zur Herstellung von feinverteilten Metalloxyden und deren Gemischen |
| US2990249A (en) * | 1958-10-09 | 1961-06-27 | Degussa | Process of preparing finely divided oxides by hydrolysis |
| GB1211702A (en) * | 1966-12-08 | 1970-11-11 | Unilever Ltd | Fine particles |
| US3660025A (en) * | 1970-07-01 | 1972-05-02 | Cities Service Co | Manufacture of pigmentary silica |
| BE790704A (fr) * | 1971-10-28 | 1973-02-15 | Degussa | Procede pour la fabrication d'oxydes finement |
| CH569670A5 (OSRAM) * | 1972-09-15 | 1975-11-28 | Lonza Ag |
-
1979
- 1979-02-05 DE DE19792904199 patent/DE2904199A1/de not_active Withdrawn
- 1979-11-12 NL NL7908270A patent/NL7908270A/nl not_active Application Discontinuation
- 1979-11-19 LU LU81909A patent/LU81909A1/de unknown
- 1979-11-20 IT IT7969244A patent/IT7969244A0/it unknown
- 1979-12-04 AT AT79104898T patent/ATE4303T1/de not_active IP Right Cessation
- 1979-12-04 DE DE7979104898T patent/DE2966007D1/de not_active Expired
- 1979-12-04 EP EP79104898A patent/EP0015315B1/de not_active Expired
-
1980
- 1980-01-03 FR FR8000062A patent/FR2447887A1/fr active Granted
- 1980-01-28 BR BR8000517A patent/BR8000517A/pt unknown
- 1980-02-04 BE BE6/47072A patent/BE881534A/fr not_active IP Right Cessation
- 1980-02-04 GB GB8003648A patent/GB2044738B/en not_active Expired
- 1980-02-04 CA CA000344998A patent/CA1179477A/en not_active Expired
- 1980-02-04 SE SE8000877A patent/SE8000877L/ not_active Application Discontinuation
- 1980-02-04 AT AT0060480A patent/ATA60480A/de not_active IP Right Cessation
- 1980-02-04 CH CH88680A patent/CH642931A5/de not_active IP Right Cessation
- 1980-02-05 JP JP1215780A patent/JPS55104912A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2447887A1 (fr) | 1980-08-29 |
| SE8000877L (sv) | 1980-08-06 |
| JPS6335567B2 (OSRAM) | 1988-07-15 |
| CH642931A5 (de) | 1984-05-15 |
| LU81909A1 (de) | 1980-04-22 |
| GB2044738B (en) | 1983-05-11 |
| DE2904199A1 (de) | 1980-08-07 |
| JPS55104912A (en) | 1980-08-11 |
| IT7969244A0 (it) | 1979-11-20 |
| EP0015315A1 (de) | 1980-09-17 |
| EP0015315B1 (de) | 1983-07-27 |
| CA1179477A (en) | 1984-12-18 |
| BE881534A (fr) | 1980-08-04 |
| ATA60480A (de) | 1984-08-15 |
| BR8000517A (pt) | 1980-10-14 |
| GB2044738A (en) | 1980-10-22 |
| ATE4303T1 (de) | 1983-08-15 |
| NL7908270A (nl) | 1980-08-07 |
| DE2966007D1 (en) | 1983-09-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CD | Change of name or company name | ||
| RP | Partial renunciation |