GB182411A - Improvements in effecting the separation of sodium carbonate from liquors, or solutions, containing caustic soda - Google Patents
Improvements in effecting the separation of sodium carbonate from liquors, or solutions, containing caustic sodaInfo
- Publication number
- GB182411A GB182411A GB1344422A GB1344422A GB182411A GB 182411 A GB182411 A GB 182411A GB 1344422 A GB1344422 A GB 1344422A GB 1344422 A GB1344422 A GB 1344422A GB 182411 A GB182411 A GB 182411A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sodium carbonate
- sodium
- solutions
- carbonate
- calcium
- 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
- C01D1/28—Purification; Separation
- C01D1/32—Purification; Separation by absorption or precipitation
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
Sodium carbonate is removed from solutions of sodium hydrate such as solutions produced by the two-stage caustifying process described in Specification 182,661 by adding excess of calcium carbonate and if desired seeding with calcium-sodium carbonate. A precipitate of calcium-sodium carbonate is produced, from which the sodium carbonate may be recovered by treatment with water. The remaining sodium carbonate may be removed by concentrating the solution to a strength of 30-35 per cent and cooling to 10-20 DEG C., when small crystals of sodium carbonate separate, or by treating with the necessary quantity of strontium or barium oxide. The solution thus further purified contains less than one per cent of sodium carbonate.ALSO:Sodium-calcium carbonate is obtained in removing sodium carbonate from solutions of caustic soda such as those obtained according to Specification 182,661 by adding excess of calcium carbonate and, if desired, seeding the solution with some sodium-calcium carbonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1344422A GB182411A (en) | 1921-06-11 | 1921-06-11 | Improvements in effecting the separation of sodium carbonate from liquors, or solutions, containing caustic soda |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1344422A GB182411A (en) | 1921-06-11 | 1921-06-11 | Improvements in effecting the separation of sodium carbonate from liquors, or solutions, containing caustic soda |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB182411A true GB182411A (en) | 1922-07-06 |
Family
ID=10023093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1344422A Expired GB182411A (en) | 1921-06-11 | 1921-06-11 | Improvements in effecting the separation of sodium carbonate from liquors, or solutions, containing caustic soda |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB182411A (en) |
-
1921
- 1921-06-11 GB GB1344422A patent/GB182411A/en not_active Expired
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