FR2447887A1 - Procede pour la fabrication dirigee d'acide silicique par hydrolyse en flamme - Google Patents

Procede pour la fabrication dirigee d'acide silicique par hydrolyse en flamme

Info

Publication number
FR2447887A1
FR2447887A1 FR8000062A FR8000062A FR2447887A1 FR 2447887 A1 FR2447887 A1 FR 2447887A1 FR 8000062 A FR8000062 A FR 8000062A FR 8000062 A FR8000062 A FR 8000062A FR 2447887 A1 FR2447887 A1 FR 2447887A1
Authority
FR
France
Prior art keywords
silicic acid
flame hydrolysis
direct manufacture
manufacture
direct
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.)
Granted
Application number
FR8000062A
Other languages
English (en)
French (fr)
Other versions
FR2447887B1 (OSRAM
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of FR2447887A1 publication Critical patent/FR2447887A1/fr
Application granted granted Critical
Publication of FR2447887B1 publication Critical patent/FR2447887B1/fr
Granted legal-status Critical Current

Links

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)
FR8000062A 1979-02-05 1980-01-03 Procede pour la fabrication dirigee d'acide silicique par hydrolyse en flamme Granted FR2447887A1 (fr)

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 true FR2447887A1 (fr) 1980-08-29
FR2447887B1 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)

* Cited by examiner, † Cited by third party
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
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
EP3390293B1 (de) 2015-12-18 2023-04-19 Heraeus Quarzglas GmbH & Co. KG Erhöhen des siliziumgehalts bei der herstellung von quarzglas
TWI813534B (zh) 2015-12-18 2023-09-01 德商何瑞斯廓格拉斯公司 利用露點監測在熔融烘箱中製備石英玻璃體
US10618833B2 (en) 2015-12-18 2020-04-14 Heraeus Quarzglas Gmbh & Co. Kg Preparation of a synthetic quartz glass grain
TWI788278B (zh) 2015-12-18 2023-01-01 德商何瑞斯廓格拉斯公司 由均質石英玻璃製得之玻璃纖維及預成型品
JP6940235B2 (ja) 2015-12-18 2021-09-22 ヘレウス クワルツグラス ゲーエムベーハー ウント コンパニー カーゲー 高融点金属の溶融坩堝内での石英ガラス体の調製
TW201731782A (zh) 2015-12-18 2017-09-16 何瑞斯廓格拉斯公司 在多腔式爐中製備石英玻璃體
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
JP7044454B2 (ja) 2015-12-18 2022-03-30 ヘレウス クワルツグラス ゲーエムベーハー ウント コンパニー カーゲー 石英ガラス調製時の中間体としての炭素ドープ二酸化ケイ素造粒体の調製
JP6981710B2 (ja) 2015-12-18 2021-12-17 ヘレウス クワルツグラス ゲーエムベーハー ウント コンパニー カーゲー 二酸化ケイ素造粒体からの石英ガラス体の調製
WO2025098830A1 (en) 2023-11-08 2025-05-15 Evonik Operations Gmbh Process for producing pyrogenic metal oxides and metalloid oxides
WO2025098829A1 (en) 2023-11-08 2025-05-15 Evonik Operations Gmbh Process for manufacturing metal oxides and/or metalloid oxides

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2158172A1 (OSRAM) * 1971-10-28 1973-06-15 Degussa

Family Cites Families (11)

* Cited by examiner, † Cited by third party
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
CH569670A5 (OSRAM) * 1972-09-15 1975-11-28 Lonza Ag

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2158172A1 (OSRAM) * 1971-10-28 1973-06-15 Degussa

Also Published As

Publication number Publication date
EP0015315A1 (de) 1980-09-17
SE8000877L (sv) 1980-08-06
NL7908270A (nl) 1980-08-07
ATE4303T1 (de) 1983-08-15
BE881534A (fr) 1980-08-04
ATA60480A (de) 1984-08-15
CH642931A5 (de) 1984-05-15
JPS55104912A (en) 1980-08-11
CA1179477A (en) 1984-12-18
IT7969244A0 (it) 1979-11-20
BR8000517A (pt) 1980-10-14
FR2447887B1 (OSRAM) 1984-09-07
EP0015315B1 (de) 1983-07-27
LU81909A1 (de) 1980-04-22
JPS6335567B2 (OSRAM) 1988-07-15
GB2044738A (en) 1980-10-22
DE2904199A1 (de) 1980-08-07
GB2044738B (en) 1983-05-11
DE2966007D1 (en) 1983-09-01

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RP Partial renunciation