GB350343A - - Google Patents
Info
- Publication number
- GB350343A GB350343A GB2732730A GB2732730A GB350343A GB 350343 A GB350343 A GB 350343A GB 2732730 A GB2732730 A GB 2732730A GB 2732730 A GB2732730 A GB 2732730A GB 350343 A GB350343 A GB 350343A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ammonium chloride
- sodium
- sodium sulphate
- chloride
- gypsum
- 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
- C01D9/00—Nitrates of sodium, potassium or alkali metals in general
- C01D9/04—Preparation with liquid nitric acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
In the production of sodium nitrate and ammonium chloride, an ammonium chloride-ammonium carbonate liquor, obtained in the process, is treated with gypsum, and then with sodium chloride and ammonia; the resultant sodium sulphate-calcium carbonate mixture is separated and decomposed with nitric acid. Sodium nitrate is crystallized from the solution, the mother liquor being employed to dissolve fresh sodium sulphate. Gypsum precipitated and carbon dioxide evolved are re-employed in the process. The mother liquor from the separation of the sodium sulphate-calcium carbonate mixture is cooled to separate part of the ammonium chloride, and is then treated with carbon dioxide. The ammonium chloride-ammonium carbonate liquor thus obtained is the starting material for the initial step. In a modification, the ammonia necessary for the process may be introduced prior to the addition of gypsum. Preferably, excess of sodium chloride is allowed to remain in solution in order better to salt out sodium sulphate. Ammonia for reuse may be recovered from the ammonium chloride obtained. Specifications 349,823 and 351,271 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2732730X | 1929-10-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB350343A true GB350343A (en) | 1931-06-11 |
Family
ID=7997384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2732730A Expired GB350343A (en) | 1929-10-03 | 1930-09-12 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB350343A (en) |
-
1930
- 1930-09-12 GB GB2732730A patent/GB350343A/en not_active Expired
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