GB235588A - - Google Patents
Info
- Publication number
- GB235588A GB235588A GB15290/25A GB1529025A GB235588A GB 235588 A GB235588 A GB 235588A GB 15290/25 A GB15290/25 A GB 15290/25A GB 1529025 A GB1529025 A GB 1529025A GB 235588 A GB235588 A GB 235588A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fluoride
- enough
- reaction
- carbon dioxide
- carbonate
- 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
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
- C01D1/04—Hydroxides
- C01D1/20—Preparation by reacting oxides or hydroxides with alkali metal salts
- C01D1/24—Preparation by reacting oxides or hydroxides with alkali metal salts from or via fluorides or silico-fluorides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Soluble carbonates and hydrates and insoluble fluorides are produced by treating a fluoride such as sodium fluoride with a carbonate or hydrate of a metal forming an insoluble fluoride, the reaction being effected with heat and pressure, preferably in presence of a small quantity of water, less than enough to dissolve a soluble product or only enough to produce a saturated solution. The invention is described with reference to the reaction between sodium fluoride and calcium carbonate, in which case the presence of carbon dioxide is advantageous. This may be secured by adding a substance which evolves carbon dioxide, such as sodium bicarbonate.ALSO:Soluble carbonate and hydrates and insoluble fluorides are produced by treating a fluoride such as sodium fluoride with a carbonate or hydrate of a metal forming an insoluble fluoride, the reaction being effected with heat and pressure, preferably in presence of a small quantity of water, less than enough to dissolve the soluble product or only enough to produce a saturated solution. The invention is described with reference to the reaction between sodium fluoride and calcium carbonate, in which case the presence of carbon dioxide is advantageous. This may be secured by adding a substance which evolves carbon dioxide, such as sodium bicarbonate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE235588X | 1924-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB235588A true GB235588A (en) | 1926-09-13 |
Family
ID=5897566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15290/25A Expired GB235588A (en) | 1924-06-14 | 1925-06-12 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB235588A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4414185A (en) * | 1982-08-09 | 1983-11-08 | Chevron Research Company | Process for calcium fluoride production from industrial waste waters |
-
1925
- 1925-06-12 GB GB15290/25A patent/GB235588A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4414185A (en) * | 1982-08-09 | 1983-11-08 | Chevron Research Company | Process for calcium fluoride production from industrial waste waters |
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