GB328272A - Improvements in the manufacture and production of potassium nitrate - Google Patents
Improvements in the manufacture and production of potassium nitrateInfo
- Publication number
- GB328272A GB328272A GB3668628A GB3668628A GB328272A GB 328272 A GB328272 A GB 328272A GB 3668628 A GB3668628 A GB 3668628A GB 3668628 A GB3668628 A GB 3668628A GB 328272 A GB328272 A GB 328272A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ammonia
- calcium
- potassium nitrate
- chloride
- nitrate
- 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
- C01D9/08—Preparation by double decomposition
- C01D9/12—Preparation by double decomposition with nitrates or magnesium, calcium, strontium, or barium
Abstract
328,272. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec. 12, 1928. Ammonia; ammonium compounds containing metals.-In obtaining potassium nitrate by the reaction of calcium nitrate and potassium chloride, ammonia is added to the solution before the saparation of potassium nitrate to increase the yield, and preferably also after such separation, thereby precipitating calcium chloride as CaCl2.6NH3 and allowing the liquors to be worked up to obtain more potassium nitrate, or to be used for the conversion of fresh amounts of the reactants. By heating the addition compound of calcium chloride with ammonia, calcium .chloride and ammonia are obtained, the recovery of pure ammonia from gaseous mixtures containing ammonia resulting if such mixtures are used in the process. In an example potassium chloride is added to a solution of calcium nitrate. After cooling to 0‹ C., whereupon a part of the potassium nitrate separates, gaseous ammonia is passed in whereupon further potassium nitrate separates. The remaining solution is saturated with ammonia at 0‹ C. under a pressure of five atmospheres whereupon CaCl2.6NH3 separates. According to one of the Provisional Specifications ammonia may be separated from gases containing it by passing such gases through solutions of other salts capable of forming addition compounds with ammonia, such as salts of calcium or magnesium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3668628A GB328272A (en) | 1928-12-12 | 1928-12-12 | Improvements in the manufacture and production of potassium nitrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3668628A GB328272A (en) | 1928-12-12 | 1928-12-12 | Improvements in the manufacture and production of potassium nitrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB328272A true GB328272A (en) | 1930-04-14 |
Family
ID=10390343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3668628A Expired GB328272A (en) | 1928-12-12 | 1928-12-12 | Improvements in the manufacture and production of potassium nitrate |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB328272A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2455015A1 (en) * | 1979-04-25 | 1980-11-21 | Inst Galurgii | Nitrogen-potassium based fertiliser prodn. - by reacting potassium bi:sulphate with calcium nitrate, treating prod. with ammonia then sepg. fertiliser from reaction liq. |
| CN104445292A (en) * | 2014-12-04 | 2015-03-25 | 交城县金兰化工有限公司 | Method for simultaneously preparing potassium nitrate and calcium chloride from calcium nitrate solution and potassium chloride |
-
1928
- 1928-12-12 GB GB3668628A patent/GB328272A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2455015A1 (en) * | 1979-04-25 | 1980-11-21 | Inst Galurgii | Nitrogen-potassium based fertiliser prodn. - by reacting potassium bi:sulphate with calcium nitrate, treating prod. with ammonia then sepg. fertiliser from reaction liq. |
| CN104445292A (en) * | 2014-12-04 | 2015-03-25 | 交城县金兰化工有限公司 | Method for simultaneously preparing potassium nitrate and calcium chloride from calcium nitrate solution and potassium chloride |
| CN104445292B (en) * | 2014-12-04 | 2015-11-11 | 交城县金兰化工有限公司 | Ca nitrate soln and Repone K is adopted to prepare saltpetre and the method for by-product calcium chloride |
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