GB765602A - Improvements in or relating to the manufacture of alkali metal carbonates - Google Patents
Improvements in or relating to the manufacture of alkali metal carbonatesInfo
- Publication number
- GB765602A GB765602A GB31356/54A GB3135654A GB765602A GB 765602 A GB765602 A GB 765602A GB 31356/54 A GB31356/54 A GB 31356/54A GB 3135654 A GB3135654 A GB 3135654A GB 765602 A GB765602 A GB 765602A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbonate
- alkali metal
- added
- bicarbonate
- mixture
- 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
- C01D7/00—Carbonates of sodium, potassium or alkali metals in general
- C01D7/12—Preparation of carbonates from bicarbonates or bicarbonate-containing product
- C01D7/123—Preparation of carbonates from bicarbonates or bicarbonate-containing product by thermal decomposition of solids in the absence of a liquid medium
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)
Abstract
An alkali metal carbonate, of intermediate bulk density and particle size, is produced by calcining a mixture of hydrated alkali metal carbonate and alkali metal bicarbonate and of composition in terms of sodium carbonate equivalents within the range 1:1 to 1:1:6. The mixture is calcined at a temperature above that at which the decomposition of the bicarbonate begins and at which the hydrated carbonate becomes anhydrous. Anhydrous alkali metal carbonate or a portion of previously calcined product may be added to the mixture before calcination. Sufficient water may be added to the mixture before calcination of bicarbonate and carbonate to form the hydrate of the carbonate. The alkali metal may be sodium and may be associated with an ammonium salt, e.g. ammonium carbonate which may be from the ammonia-soda process in which case calcination is at 100 DEG -250 DEG C. If sodium carbonate is used the salt may be anhydrous and sufficient water to form the monohydrate is added.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US765602XA | 1953-11-02 | 1953-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB765602A true GB765602A (en) | 1957-01-09 |
Family
ID=22132789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31356/54A Expired GB765602A (en) | 1953-11-02 | 1954-10-29 | Improvements in or relating to the manufacture of alkali metal carbonates |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB765602A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4652437A (en) * | 1983-09-20 | 1987-03-24 | Asahi Glass Company, Ltd. | Process for producing anhydrous sodium carbonate |
-
1954
- 1954-10-29 GB GB31356/54A patent/GB765602A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4652437A (en) * | 1983-09-20 | 1987-03-24 | Asahi Glass Company, Ltd. | Process for producing anhydrous sodium carbonate |
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