GB1037133A - Improvements in or relating to the preparation of hydrofluoric acid - Google Patents
Improvements in or relating to the preparation of hydrofluoric acidInfo
- Publication number
- GB1037133A GB1037133A GB404364A GB404364A GB1037133A GB 1037133 A GB1037133 A GB 1037133A GB 404364 A GB404364 A GB 404364A GB 404364 A GB404364 A GB 404364A GB 1037133 A GB1037133 A GB 1037133A
- Authority
- GB
- United Kingdom
- Prior art keywords
- caso4
- relating
- preparation
- hydrofluoric acid
- reaction
- 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
Links
Classifications
-
- 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
- C01B7/192—Preparation from fluorspar
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
HF is prepared by mixing fluospar and H2SO4 in substantially stoichiometric proportions with anhydrous CaSO4 in amount 50-150% by weight of the amount of CaSO4 which will be produced by the reaction. The mixture in the form of balls or granules is introduced into a reaction vessel which may be submitted to continuous vibrations. The CaSO4 may be anhydrite obtained by crushing the by-product of a previous reaction. The granules may have a size between 5 and 200 m . Mixing may take place at less than 50 DEG C. on a granulating plate, in a granulating drum or in a mixer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR923109A FR1356982A (en) | 1963-01-30 | 1963-01-30 | Improvements in processes for obtaining hydrofluoric acid |
| FR958456A FR85022E (en) | 1963-01-30 | 1963-12-26 | Improvements in processes for obtaining hydrofluoric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1037133A true GB1037133A (en) | 1966-07-27 |
Family
ID=26199595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB404364A Expired GB1037133A (en) | 1963-01-30 | 1964-01-30 | Improvements in or relating to the preparation of hydrofluoric acid |
Country Status (3)
| Country | Link |
|---|---|
| ES (1) | ES295892A1 (en) |
| FR (1) | FR85022E (en) |
| GB (1) | GB1037133A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4010245A (en) * | 1974-07-24 | 1977-03-01 | Bayer Aktiengesellschaft | Production of hydrogen fluoride and calcium sulfate |
| CN109626325A (en) * | 2018-12-13 | 2019-04-16 | 杨宇 | A kind of energy conservation and environmental protection chlorination apparatus for forming hydrogen |
-
1963
- 1963-12-26 FR FR958456A patent/FR85022E/en not_active Expired
-
1964
- 1964-01-30 ES ES295892A patent/ES295892A1/en not_active Expired
- 1964-01-30 GB GB404364A patent/GB1037133A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4010245A (en) * | 1974-07-24 | 1977-03-01 | Bayer Aktiengesellschaft | Production of hydrogen fluoride and calcium sulfate |
| CN109626325A (en) * | 2018-12-13 | 2019-04-16 | 杨宇 | A kind of energy conservation and environmental protection chlorination apparatus for forming hydrogen |
Also Published As
| Publication number | Publication date |
|---|---|
| FR85022E (en) | 1965-05-28 |
| ES295892A1 (en) | 1964-05-01 |
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