GB1062649A - Process for the production of sodium fluoride - Google Patents
Process for the production of sodium fluorideInfo
- Publication number
- GB1062649A GB1062649A GB3606663A GB3606663A GB1062649A GB 1062649 A GB1062649 A GB 1062649A GB 3606663 A GB3606663 A GB 3606663A GB 3606663 A GB3606663 A GB 3606663A GB 1062649 A GB1062649 A GB 1062649A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fluoride
- sodium chloride
- per litre
- water
- solution
- 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
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/02—Fluorides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Silicon Compounds (AREA)
Abstract
High purity sodium fluoride is produced by mixing and agitating at least stoichiometric quantities of solid sodium chloride with a solution of a water-soluble fluoride (e.g. NH4F and/or KF) containing 60-120 gm. fluoride ion per litre and filtering the precipitated NaF. The reaction is effected at such a temperature (e.g. 15-70 DEG C.), and with such excess of NaCl, that the solubility limit of the respective chlorides is not exceeded. The initial solution may be obtained by the ammoniation of fluosilicic acid or sodium or potassium fluosilicate and may contain 70-100 gm. per litre of fluoride ion. 105-200% of the stoichiometric quantity of sodium chloride may be added. The solid sodium chloride may be slurried with a quantity of water or wash water from a previous batch and the fluoride solution added to the resulting slurry. If the initial solution has a concentration above 100 gm. fluoride ion per litre, it is diluted with water, wash water or sodium chloride solution to give 70-100 gm. per litre of fluoride ion.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IL1793962 | 1962-09-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1062649A true GB1062649A (en) | 1967-03-22 |
Family
ID=11043232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3606663A Expired GB1062649A (en) | 1962-09-16 | 1963-09-12 | Process for the production of sodium fluoride |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1208742B (en) |
| GB (1) | GB1062649A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020292A (en) * | 2010-10-25 | 2011-04-20 | 宁波诺尔丽化学科技有限公司 | Method for preparing sodium fluoride from organic fluoridation waste material |
| CN115403056A (en) * | 2022-09-26 | 2022-11-29 | 罗立汉 | Comprehensive utilization method of by-products fluosilicic acid, dilute ammonia water and sodium sulfate |
-
1963
- 1963-09-12 GB GB3606663A patent/GB1062649A/en not_active Expired
- 1963-09-14 DE DEC30900A patent/DE1208742B/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020292A (en) * | 2010-10-25 | 2011-04-20 | 宁波诺尔丽化学科技有限公司 | Method for preparing sodium fluoride from organic fluoridation waste material |
| CN102020292B (en) * | 2010-10-25 | 2012-07-04 | 宁波诺尔丽化学科技有限公司 | Method for preparing sodium fluoride from organic fluoridation waste material |
| CN115403056A (en) * | 2022-09-26 | 2022-11-29 | 罗立汉 | Comprehensive utilization method of by-products fluosilicic acid, dilute ammonia water and sodium sulfate |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1208742B (en) | 1966-01-13 |
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