CS189686B2 - Process for preparing calcium fluoride from hexafluorsilicic acid - Google Patents

Process for preparing calcium fluoride from hexafluorsilicic acid

Info

Publication number
CS189686B2
CS189686B2 CS75869A CS86975A CS189686B2 CS 189686 B2 CS189686 B2 CS 189686B2 CS 75869 A CS75869 A CS 75869A CS 86975 A CS86975 A CS 86975A CS 189686 B2 CS189686 B2 CS 189686B2
Authority
CS
Czechoslovakia
Prior art keywords
hexafluorsilicic
acid
calcium fluoride
preparing calcium
preparing
Prior art date
Application number
CS75869A
Other languages
Czech (cs)
English (en)
Inventor
Wilfried Becher
Joachim Massone
Original Assignee
Kali Chemie 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 Kali Chemie Ag filed Critical Kali Chemie Ag
Publication of CS189686B2 publication Critical patent/CS189686B2/cs

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/20—Halides
    • C01F11/22—Fluorides
    • 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
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/141—Preparation of hydrosols or aqueous dispersions
    • 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
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/152—Preparation of hydrogels
    • C01B33/1525—Preparation of hydrogels from or via fluosilicic acid or salts thereof
    • 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
    • C01B33/20—Silicates
    • C01B33/22—Magnesium silicates
    • 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
    • C01B33/20—Silicates
    • C01B33/24—Alkaline-earth metal silicates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Silicon Compounds (AREA)
CS75869A 1974-02-15 1975-02-11 Process for preparing calcium fluoride from hexafluorsilicic acid CS189686B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2407238A DE2407238C3 (de) 1974-02-15 1974-02-15 Verfahren zur Herstellung von Calciumfluorid aus Hexafluorokieselsäure

Publications (1)

Publication Number Publication Date
CS189686B2 true CS189686B2 (en) 1979-04-30

Family

ID=5907486

Family Applications (1)

Application Number Title Priority Date Filing Date
CS75869A CS189686B2 (en) 1974-02-15 1975-02-11 Process for preparing calcium fluoride from hexafluorsilicic acid

Country Status (23)

Country Link
US (1) US4031193A (pt)
JP (1) JPS50118991A (pt)
AR (1) AR201809A1 (pt)
AT (1) AT348487B (pt)
BE (1) BE825331A (pt)
BR (1) BR7500809A (pt)
CS (1) CS189686B2 (pt)
DD (1) DD116211A5 (pt)
DE (1) DE2407238C3 (pt)
DK (1) DK54175A (pt)
ES (1) ES434461A1 (pt)
FR (1) FR2261228B1 (pt)
GB (1) GB1467537A (pt)
HU (1) HU170712B (pt)
IL (1) IL46623A (pt)
IN (1) IN143138B (pt)
IT (1) IT1031670B (pt)
NL (1) NL7500265A (pt)
RO (1) RO65917A (pt)
SE (1) SE400271B (pt)
SU (1) SU585807A3 (pt)
TR (1) TR18300A (pt)
ZA (1) ZA75852B (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4078043A (en) * 1974-02-15 1978-03-07 Kali-Chemie Aktiengesellschaft Process for preparing calcium fluoride from hexafluoro silicic acid and production of silicic acid gel or active silicic acid from said calcium fluoride
US4264563A (en) * 1979-04-12 1981-04-28 Occidental Research Corp. Preparation of calcium fluoride from fluosilicic acid solutions
DE3626448A1 (de) * 1986-08-05 1988-02-11 Hoechst Ag Verfahren zur aufarbeitung von waessrigen kieselfluorwasserstoffsaeureloesungen
US5910297A (en) * 1997-07-31 1999-06-08 E. I. Du Pont De Nemours And Company Alkaline earth fluoride manufacturing process
JP2002226206A (ja) * 2001-01-29 2002-08-14 Asahi Glass Co Ltd フッ化水素の製造方法
RU2465206C1 (ru) * 2011-02-25 2012-10-27 Владимир Александрович Ольшанский Способ получения синтетического флюорита
RU2472705C1 (ru) * 2011-06-21 2013-01-20 Открытое акционерное общество "Сибирский химический комбинат" Способ получения синтетического флюорита
JP6024910B2 (ja) * 2013-03-08 2016-11-16 三菱マテリアル株式会社 フッ化カルシウムの回収方法とその回収設備
MA39797A (fr) * 2014-04-04 2017-02-08 Fluorsid S P A Fluorite synthétique de haute pureté et son processus de préparation
ES2732943T3 (es) 2015-04-22 2019-11-26 Ocp Sa Procedimiento de preparación del fluoruro de calcio a partir del ácido fluosilícico
WO2021079368A1 (en) 2019-10-24 2021-04-29 IMI Tami Institute for Research and Development ltd Novel flux / mineralizer for cement clinkering and method of manufacture thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2410043A (en) * 1945-01-04 1946-10-29 Nasa Process for manufacturing calcium fluoride
US2914474A (en) * 1954-07-29 1959-11-24 Phillips Petroleum Co Removal of fluorides from industrial waste waters
US3551332A (en) * 1969-06-16 1970-12-29 Int Minerals & Chem Corp Purification of fluorine-containing industrial waste waters

Also Published As

Publication number Publication date
AR201809A1 (es) 1975-04-15
AU7803575A (en) 1976-08-12
DE2407238B2 (de) 1978-11-02
SE400271B (sv) 1978-03-20
BE825331A (fr) 1975-05-29
ZA75852B (en) 1976-01-28
TR18300A (tr) 1976-12-28
ATA110875A (de) 1978-07-15
IL46623A (en) 1977-11-30
RO65917A (ro) 1980-06-15
US4031193A (en) 1977-06-21
NL7500265A (nl) 1975-08-19
GB1467537A (en) 1977-03-16
JPS50118991A (pt) 1975-09-18
SU585807A3 (ru) 1977-12-25
BR7500809A (pt) 1975-11-25
DD116211A5 (pt) 1975-11-12
DE2407238A1 (de) 1975-08-28
SE7501618L (pt) 1975-08-18
HU170712B (pt) 1977-08-28
IN143138B (pt) 1977-10-08
AT348487B (de) 1979-02-26
DE2407238C3 (de) 1979-06-28
IL46623A0 (en) 1975-04-25
FR2261228A1 (pt) 1975-09-12
IT1031670B (it) 1979-05-10
FR2261228B1 (pt) 1979-08-03
DK54175A (pt) 1975-10-06
ES434461A1 (es) 1976-12-16

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