BE783326A - Procede pour la preparation de dioxyde de silicium finement divise a grande surface - Google Patents

Procede pour la preparation de dioxyde de silicium finement divise a grande surface

Info

Publication number
BE783326A
BE783326A BE783326A BE783326A BE783326A BE 783326 A BE783326 A BE 783326A BE 783326 A BE783326 A BE 783326A BE 783326 A BE783326 A BE 783326A BE 783326 A BE783326 A BE 783326A
Authority
BE
Belgium
Prior art keywords
preparation
silicon dioxide
finely divided
divided silicon
surface finely
Prior art date
Application number
BE783326A
Other languages
English (en)
French (fr)
Original Assignee
Degussa
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 filed Critical Degussa
Publication of BE783326A publication Critical patent/BE783326A/xx

Links

Classifications

    • 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
    • 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
    • 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
    • C01P2006/12—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)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Composite Materials (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Silicon Compounds (AREA)
BE783326A 1971-05-11 1972-05-10 Procede pour la preparation de dioxyde de silicium finement divise a grande surface BE783326A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712123233 DE2123233C3 (de) 1971-05-11 1971-05-11 Feinteiliges grossoberflaechiges siliciumdioxid

Publications (1)

Publication Number Publication Date
BE783326A true BE783326A (fr) 1972-09-01

Family

ID=5807495

Family Applications (1)

Application Number Title Priority Date Filing Date
BE783326A BE783326A (fr) 1971-05-11 1972-05-10 Procede pour la preparation de dioxyde de silicium finement divise a grande surface

Country Status (7)

Country Link
JP (1) JPS535636B1 (Direct)
BE (1) BE783326A (Direct)
DE (1) DE2123233C3 (Direct)
FR (1) FR2137479B1 (Direct)
GB (1) GB1394116A (Direct)
NL (1) NL175984C (Direct)
SU (1) SU457208A3 (Direct)

Families Citing this family (4)

* 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
US5340560A (en) * 1993-04-30 1994-08-23 General Electric Company Method for making fumed silica having a reduced aggregate size and product
DE10135452A1 (de) * 2001-07-20 2003-02-06 Degussa Pyrogen hergestellte Aluminium-Silicium-Mischoxide
US20240116764A1 (en) 2021-02-11 2024-04-11 Evonik Operations Gmbh Fumed silica powder with reduced silanol group density

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE900339C (de) * 1951-07-05 1953-12-21 Degussa Verfahren und Vorrichtung zur Herstellung von kolloidaler Kieselsaeure in Aerogelform

Also Published As

Publication number Publication date
DE2123233C3 (de) 1977-10-13
DE2123233B2 (de) 1977-03-03
DE2123233A1 (de) 1972-11-30
SU457208A3 (ru) 1975-01-15
GB1394116A (en) 1975-05-14
FR2137479B1 (Direct) 1975-03-21
JPS535636B1 (Direct) 1978-03-01
NL175984C (nl) 1985-02-01
NL175984B (nl) 1984-09-03
FR2137479A1 (Direct) 1972-12-29
NL7201420A (Direct) 1972-11-14

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: DEUTSCHE GOLD- UND SILBER-SCHEIDEANSTALT VORMALS

Effective date: 19910531