GB358468A - A process for the production of pure alkali fluorides - Google Patents
A process for the production of pure alkali fluoridesInfo
- Publication number
- GB358468A GB358468A GB1080630A GB1080630A GB358468A GB 358468 A GB358468 A GB 358468A GB 1080630 A GB1080630 A GB 1080630A GB 1080630 A GB1080630 A GB 1080630A GB 358468 A GB358468 A GB 358468A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- thionates
- hydrofluoric acid
- fluoride
- purified
- 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
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Solutions of potassium and other alkali metal fluorides containing thionates, obtained for instance from potassium sulphide by the action thereon of a simple or complex hydrofluoric acid, are purified by treatment with acids or acid salts under conditions which prevent dissociation or which do not allow it to become active in aqueous solution. The added acid is not then bound by liberated alkali and the thionates are decomposed. In carrying out the process the fluorides, after an addition of hydrofluoric acid or acid fluoride equivalent to the thionates present, may be heated to temperatures of about 300 DEG C. After cooling the fluoride may be extracted with water to free it from precipitated sulphur. Alternatively sufficient hydrofluoric acid may be added to form the acid salt and provide some excess, whereby the thionates are decomposed directly. From the purified bifluoride after separation of precipitated sulphur hydrofluoric acid and pure alkali fluoride may be obtained by heating say to 400 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1080630A GB358468A (en) | 1930-04-04 | 1930-04-04 | A process for the production of pure alkali fluorides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1080630A GB358468A (en) | 1930-04-04 | 1930-04-04 | A process for the production of pure alkali fluorides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB358468A true GB358468A (en) | 1931-10-05 |
Family
ID=9974612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1080630A Expired GB358468A (en) | 1930-04-04 | 1930-04-04 | A process for the production of pure alkali fluorides |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB358468A (en) |
-
1930
- 1930-04-04 GB GB1080630A patent/GB358468A/en not_active Expired
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