GB385235A - Process for the production of beryllium fluoride - Google Patents
Process for the production of beryllium fluorideInfo
- Publication number
- GB385235A GB385235A GB21099/32A GB2109932A GB385235A GB 385235 A GB385235 A GB 385235A GB 21099/32 A GB21099/32 A GB 21099/32A GB 2109932 A GB2109932 A GB 2109932A GB 385235 A GB385235 A GB 385235A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fluoride
- ammonium fluoride
- treated
- ammonia
- beryllium
- 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
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F3/00—Compounds of beryllium
- C01F3/005—Fluorides or double fluorides of beryllium with alkali metals or ammonium; Preparation of beryllium compounds therefrom
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Silicon Compounds (AREA)
Abstract
In the decomposition of beryl with ammonium fluoride, reaction is effected in a continuous manner, for example in a rotary furnace at 500 DEG C., using vapours of ammonium fluoride, and the silicon fluoride evolved is treated with gaseous ammonia in a chamber cooled to 150 DEG C., and the solid compound SiF4.2NH3 deposited together with excess ammonium fluoride. The mixed solids are passed into water and treated with excess ammonia to recover ammonium fluoride for re-use and give a residue of pure silica. The mixture of beryllium and aluminium fluorides formed is leached with water to remove beryllium fluoride, and the residue treated with sulphuric acid and silica to liberate silicon fluoride which is added to that produced in the furnace operation and converted to ammonium fluoride, and yield aluminium sulphate. The neutral ammonium fluoride is heated to give the acid fluoride, the vapour of which is used in the process, and ammonia which serves for the formation and subsequent decomposition of the compound SiF4.2NH3.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE385235X | 1931-08-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB385235A true GB385235A (en) | 1932-12-22 |
Family
ID=6370776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21099/32A Expired GB385235A (en) | 1931-08-13 | 1932-07-26 | Process for the production of beryllium fluoride |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB385235A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2532102A (en) * | 1948-08-18 | 1950-11-28 | Beryllium Corp | Production of ammonium beryllium fluoride |
-
1932
- 1932-07-26 GB GB21099/32A patent/GB385235A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2532102A (en) * | 1948-08-18 | 1950-11-28 | Beryllium Corp | Production of ammonium beryllium fluoride |
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