BE804531A - PROCESS FOR THE PRODUCTION OF HYDROFLUORIC ACID - Google Patents
PROCESS FOR THE PRODUCTION OF HYDROFLUORIC ACIDInfo
- Publication number
- BE804531A BE804531A BE135375A BE135375A BE804531A BE 804531 A BE804531 A BE 804531A BE 135375 A BE135375 A BE 135375A BE 135375 A BE135375 A BE 135375A BE 804531 A BE804531 A BE 804531A
- Authority
- BE
- Belgium
- Prior art keywords
- production
- hydrofluoric acid
- hydrofluoric
- acid
- Prior art date
Links
Classifications
-
- 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
- C01B33/184—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 by hydrolysis of tetrafluoride
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
- C01B7/193—Preparation from silicon tetrafluoride, fluosilicic acid or fluosilicates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
- C01B7/195—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/50—Agglomerated particles
-
- 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
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Silicon Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US29012172A | 1972-09-18 | 1972-09-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE804531A true BE804531A (en) | 1974-01-02 |
Family
ID=23114613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE135375A BE804531A (en) | 1972-09-18 | 1973-09-06 | PROCESS FOR THE PRODUCTION OF HYDROFLUORIC ACID |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE804531A (en) |
| CA (1) | CA1022725A (en) |
| ES (1) | ES418821A1 (en) |
| GB (1) | GB1445139A (en) |
| NL (1) | NL7312836A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4206189A (en) | 1977-01-04 | 1980-06-03 | Belov Viktor Y | Method of producing hydrogen fluoride and silicon dioxide from silicon tetra-fluoride |
| CN103420383B (en) * | 2013-07-29 | 2015-12-23 | 中国化学赛鼎宁波工程有限公司 | Take phosphatic fertilizer by-product fluosilicate as the method that raw material prepares thermal silica and anhydrous hydrofluoric acid |
-
1973
- 1973-08-30 CA CA180,036A patent/CA1022725A/en not_active Expired
- 1973-09-06 BE BE135375A patent/BE804531A/en unknown
- 1973-09-10 GB GB4252373A patent/GB1445139A/en not_active Expired
- 1973-09-17 ES ES418821A patent/ES418821A1/en not_active Expired
- 1973-09-18 NL NL7312836A patent/NL7312836A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| GB1445139A (en) | 1976-08-04 |
| CA1022725A (en) | 1977-12-20 |
| ES418821A1 (en) | 1976-12-01 |
| NL7312836A (en) | 1974-03-20 |
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