GB226490A - Process of producing salts of complex hydrofluoric acids - Google Patents
Process of producing salts of complex hydrofluoric acidsInfo
- Publication number
- GB226490A GB226490A GB18329/24A GB1832924A GB226490A GB 226490 A GB226490 A GB 226490A GB 18329/24 A GB18329/24 A GB 18329/24A GB 1832924 A GB1832924 A GB 1832924A GB 226490 A GB226490 A GB 226490A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fluoride
- acid
- potassium
- silica
- production
- 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
- Silicon Compounds (AREA)
Abstract
Salts of hydrofluosilicic and hydrofluoboric acids are prepared by the reaction of silica and a fluoride in presence of an acid, with a soluble salt; or silicon fluoride, a metal fluoride and a salt of the metal of which the silicofluoride is required, in the presence of an acid. The reactions may be assisted by heat and pressure. For the salts of hydrofluoboric acid, the silica is replaced by boron oxide or fluoride, these being used together with hydrofluoric acid or an insoluble fluoride. The examples include the production of potassium silicofluorides from potassium fluoride, silica, calcium cluoride, and hydrochloric acid, or potassium chloride, silica, calcium fluoride, and hydrochloric acid, or potassium chloride, silicon fluoride, calcium fluoride, and a small quantity of an acid, or potassium silicate, calcium fluoride, and hydrochloric acid; the production of magnesium silicofluoride from magnesium sulphate, silica, calcium fluoride, and sulphuric acid; the production of sodium borofluoride from sodium chloride, boron fluoride, calcium fluoride, and an acid; and the production of potassium borofluoride from potassium chloride, boron oxide, calcium fluoride, and hydrochloric acid. The Specification as open to inspection under Sect. 91 (3) (a) includes the production of complex fluorides other than silicofluorides and borofluorides by similar processes, and the production of silicofluorides from silica, an acid, and a fluoride; potassium silicofluoride from potassium fluoride, silica and hydrochloric acid; and sodium borofluoride from sodium chloride, boron fluoride and hydrofluoric acid. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE226490X | 1923-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB226490A true GB226490A (en) | 1925-10-29 |
Family
ID=5866110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18329/24A Expired GB226490A (en) | 1923-12-20 | 1924-07-31 | Process of producing salts of complex hydrofluoric acids |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB226490A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110697735A (en) * | 2019-11-21 | 2020-01-17 | 江西渠成氟化学有限公司 | Production process of potassium fluoride |
| CN110817883A (en) * | 2019-11-21 | 2020-02-21 | 江西渠成氟化学有限公司 | Process for producing potassium fluosilicate by using byproduct calcium fluoride |
-
1924
- 1924-07-31 GB GB18329/24A patent/GB226490A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110697735A (en) * | 2019-11-21 | 2020-01-17 | 江西渠成氟化学有限公司 | Production process of potassium fluoride |
| CN110817883A (en) * | 2019-11-21 | 2020-02-21 | 江西渠成氟化学有限公司 | Process for producing potassium fluosilicate by using byproduct calcium fluoride |
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