CA999721A - Process for the production of highly-dispersed silicon dioxide - Google Patents

Process for the production of highly-dispersed silicon dioxide

Info

Publication number
CA999721A
CA999721A CA180,680A CA180680A CA999721A CA 999721 A CA999721 A CA 999721A CA 180680 A CA180680 A CA 180680A CA 999721 A CA999721 A CA 999721A
Authority
CA
Canada
Prior art keywords
highly
production
silicon dioxide
dispersed silicon
dispersed
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
Application number
CA180,680A
Other versions
CA180680S (en
Inventor
Claude Schnell
Mathias Wissler
Kurt Hengartner
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.)
Lonza AG
Original Assignee
Lonza AG
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 Lonza AG filed Critical Lonza AG
Application granted granted Critical
Publication of CA999721A publication Critical patent/CA999721A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J12/00—Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor
    • B01J12/002—Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor carried out in the plasma state
    • 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
    • C01B33/182—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process by reduction of a siliceous material, e.g. with a carbonaceous reducing agent and subsequent oxidation of the silicon monoxide formed
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
    • C01P2002/82—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by IR- or Raman-data
    • 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
CA180,680A 1972-09-15 1973-08-17 Process for the production of highly-dispersed silicon dioxide Expired CA999721A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1352672A CH569670A5 (en) 1972-09-15 1972-09-15

Publications (1)

Publication Number Publication Date
CA999721A true CA999721A (en) 1976-11-16

Family

ID=4393185

Family Applications (1)

Application Number Title Priority Date Filing Date
CA180,680A Expired CA999721A (en) 1972-09-15 1973-08-17 Process for the production of highly-dispersed silicon dioxide

Country Status (10)

Country Link
JP (1) JPS4969582A (en)
BE (1) BE804765A (en)
CA (1) CA999721A (en)
CH (1) CH569670A5 (en)
DE (1) DE2337495A1 (en)
FR (1) FR2200197A1 (en)
GB (1) GB1401408A (en)
IT (1) IT999560B (en)
NL (1) NL7312575A (en)
SE (1) SE388189B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2904199A1 (en) * 1979-02-05 1980-08-07 Degussa METHOD FOR THE GUIDED PRODUCTION OF SILICON BY MEANS OF FLAME HYDROLYSIS

Also Published As

Publication number Publication date
GB1401408A (en) 1975-07-16
DE2337495A1 (en) 1974-03-28
SE388189B (en) 1976-09-27
JPS4969582A (en) 1974-07-05
IT999560B (en) 1976-03-10
FR2200197A1 (en) 1974-04-19
CH569670A5 (en) 1975-11-28
NL7312575A (en) 1974-03-19
BE804765A (en) 1974-01-02

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