NL8204704A - Werkwijze voor het bereiden van zuiver siliciumdioxide. - Google Patents

Werkwijze voor het bereiden van zuiver siliciumdioxide. Download PDF

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Publication number
NL8204704A
NL8204704A NL8204704A NL8204704A NL8204704A NL 8204704 A NL8204704 A NL 8204704A NL 8204704 A NL8204704 A NL 8204704A NL 8204704 A NL8204704 A NL 8204704A NL 8204704 A NL8204704 A NL 8204704A
Authority
NL
Netherlands
Prior art keywords
acid
silicon dioxide
ppm
solution
added
Prior art date
Application number
NL8204704A
Other languages
English (en)
Dutch (nl)
Original Assignee
Stamicarbon
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 Stamicarbon filed Critical Stamicarbon
Priority to NL8204704A priority Critical patent/NL8204704A/nl
Priority to EP19830201689 priority patent/EP0113137B1/en
Priority to DE8383201689T priority patent/DE3370787D1/de
Priority to JP22710283A priority patent/JPS59141413A/ja
Publication of NL8204704A publication Critical patent/NL8204704A/nl

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/16—Halides of ammonium
    • C01C1/162—Ammonium fluoride
    • 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
    • C01B33/186—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof from or via fluosilicic acid or salts thereof by a wet process
    • 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
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicon Compounds (AREA)
NL8204704A 1982-12-04 1982-12-04 Werkwijze voor het bereiden van zuiver siliciumdioxide. NL8204704A (nl)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL8204704A NL8204704A (nl) 1982-12-04 1982-12-04 Werkwijze voor het bereiden van zuiver siliciumdioxide.
EP19830201689 EP0113137B1 (en) 1982-12-04 1983-11-29 Process for the preparation of pure silica
DE8383201689T DE3370787D1 (en) 1982-12-04 1983-11-29 Process for the preparation of pure silica
JP22710283A JPS59141413A (ja) 1982-12-04 1983-12-02 純粋のシリカの製造法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8204704 1982-12-04
NL8204704A NL8204704A (nl) 1982-12-04 1982-12-04 Werkwijze voor het bereiden van zuiver siliciumdioxide.

Publications (1)

Publication Number Publication Date
NL8204704A true NL8204704A (nl) 1984-07-02

Family

ID=19840693

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8204704A NL8204704A (nl) 1982-12-04 1982-12-04 Werkwijze voor het bereiden van zuiver siliciumdioxide.

Country Status (4)

Country Link
EP (1) EP0113137B1 (ja)
JP (1) JPS59141413A (ja)
DE (1) DE3370787D1 (ja)
NL (1) NL8204704A (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4981664A (en) * 1988-04-14 1991-01-01 International Minerals & Chemical Corporation Method of production of high purity silica and ammonium fluoride
US5028407A (en) * 1990-01-25 1991-07-02 International Minerals & Chemical Corp. Method of production of high purity fusible silica

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3271107A (en) * 1963-07-31 1966-09-06 Int Minerals & Chem Corp Silica pigments from fluosilicic acid
DE2121152B2 (de) * 1971-04-29 1977-03-17 Verfahren zur gewinnung von aktivem siliciumdioxid
DE2347485C3 (de) * 1973-09-21 1980-09-04 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von Ammoniumfluorid aus Kieselfluorwasserstoffsäure

Also Published As

Publication number Publication date
EP0113137B1 (en) 1987-04-08
JPS59141413A (ja) 1984-08-14
DE3370787D1 (en) 1987-05-14
EP0113137A1 (en) 1984-07-11

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
A85 Still pending on 85-01-01
BV The patent application has lapsed