CS189686B2 - Process for preparing calcium fluoride from hexafluorsilicic acid - Google Patents
Process for preparing calcium fluoride from hexafluorsilicic acidInfo
- 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
Links
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 title 1
- 229910001634 calcium fluoride Inorganic materials 0.000 title 1
- -1 hexafluorsilicic acid Chemical compound 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
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)
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 (xx) |
JP (1) | JPS50118991A (xx) |
AR (1) | AR201809A1 (xx) |
AT (1) | AT348487B (xx) |
BE (1) | BE825331A (xx) |
BR (1) | BR7500809A (xx) |
CS (1) | CS189686B2 (xx) |
DD (1) | DD116211A5 (xx) |
DE (1) | DE2407238C3 (xx) |
DK (1) | DK54175A (xx) |
ES (1) | ES434461A1 (xx) |
FR (1) | FR2261228B1 (xx) |
GB (1) | GB1467537A (xx) |
HU (1) | HU170712B (xx) |
IL (1) | IL46623A (xx) |
IN (1) | IN143138B (xx) |
IT (1) | IT1031670B (xx) |
NL (1) | NL7500265A (xx) |
RO (1) | RO65917A (xx) |
SE (1) | SE400271B (xx) |
SU (1) | SU585807A3 (xx) |
TR (1) | TR18300A (xx) |
ZA (1) | ZA75852B (xx) |
Families Citing this family (11)
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)
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 |
-
1974
- 1974-02-15 DE DE2407238A patent/DE2407238C3/de not_active Expired
-
1975
- 1975-01-09 NL NL7500265A patent/NL7500265A/xx unknown
- 1975-01-27 AR AR257434A patent/AR201809A1/es active
- 1975-01-31 GB GB443175A patent/GB1467537A/en not_active Expired
- 1975-02-05 ES ES434461A patent/ES434461A1/es not_active Expired
- 1975-02-07 BE BE153193A patent/BE825331A/xx not_active IP Right Cessation
- 1975-02-07 BR BR809/75A patent/BR7500809A/pt unknown
- 1975-02-11 CS CS75869A patent/CS189686B2/cs unknown
- 1975-02-11 ZA ZA00750852A patent/ZA75852B/xx unknown
- 1975-02-12 IT IT20185/75A patent/IT1031670B/it active
- 1975-02-12 IL IL46623A patent/IL46623A/en unknown
- 1975-02-13 FR FR7504550A patent/FR2261228B1/fr not_active Expired
- 1975-02-13 SE SE7501618A patent/SE400271B/xx unknown
- 1975-02-13 HU HUKA1434A patent/HU170712B/hu unknown
- 1975-02-14 SU SU752106124A patent/SU585807A3/ru active
- 1975-02-14 RO RO7581409A patent/RO65917A/ro unknown
- 1975-02-14 DK DK54175*#A patent/DK54175A/da unknown
- 1975-02-14 JP JP50018668A patent/JPS50118991A/ja active Pending
- 1975-02-14 AT AT110875A patent/AT348487B/de not_active IP Right Cessation
- 1975-02-14 US US05/550,135 patent/US4031193A/en not_active Expired - Lifetime
- 1975-02-17 TR TR18300A patent/TR18300A/xx unknown
- 1975-02-17 DD DD184259A patent/DD116211A5/xx unknown
- 1975-03-26 IN IN613/CAL/75A patent/IN143138B/en unknown
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 (xx) | 1975-09-18 |
SU585807A3 (ru) | 1977-12-25 |
BR7500809A (pt) | 1975-11-25 |
DD116211A5 (xx) | 1975-11-12 |
DE2407238A1 (de) | 1975-08-28 |
SE7501618L (xx) | 1975-08-18 |
HU170712B (xx) | 1977-08-28 |
IN143138B (xx) | 1977-10-08 |
AT348487B (de) | 1979-02-26 |
DE2407238C3 (de) | 1979-06-28 |
IL46623A0 (en) | 1975-04-25 |
FR2261228A1 (xx) | 1975-09-12 |
IT1031670B (it) | 1979-05-10 |
FR2261228B1 (xx) | 1979-08-03 |
DK54175A (xx) | 1975-10-06 |
ES434461A1 (es) | 1976-12-16 |
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