GB377131A - Improved processes for the production of potassium nitrate - Google Patents
Improved processes for the production of potassium nitrateInfo
- Publication number
- GB377131A GB377131A GB6042/32A GB604232A GB377131A GB 377131 A GB377131 A GB 377131A GB 6042/32 A GB6042/32 A GB 6042/32A GB 604232 A GB604232 A GB 604232A GB 377131 A GB377131 A GB 377131A
- Authority
- GB
- United Kingdom
- Prior art keywords
- potassium
- magnesium
- sulphate
- nitrate
- potassium 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
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 a cyclic process for the production of potassium nitrate from magnesium nitrate and potassium sulphate, a solution approximately saturated at an elevated temperature, say 50 DEG C., with potassium nitrate and sulphate and potassium-magnesium sulphate is cooled to 25 DEG C. or lower, for example, to 0 DEG C., with precipitation of potassium nitrate; the mother liquor obtained after separation thereof is heated with evaporation of water corresponding to that introduced as water of crystallization by p magnesium nitrate and potassium sulphate, which are added in quantities equivalent to the separated potassium nitrate, whereupon potassium-magnesium sulphate separates, thus reproducing the original solution. In a modification, potassium sulphate and magnesium nitrate may also be added prior to cooling. The magnesium nitrate may be employed in the hydrated condition, but preferably it is introduced into the solution as magnesia, magnesium hydroxide, magnesium carbonate or basic magnesium carbonate and nitric acid or nitrous gases. Potassium-magnesium sulphate produced may be used as a fertilizer or as an addition to mixed fertilizers, but preferably it is decomposed for recovery of potassium sulphate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE377131X | 1931-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB377131A true GB377131A (en) | 1932-07-21 |
Family
ID=6344360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6042/32A Expired GB377131A (en) | 1931-09-01 | 1932-02-29 | Improved processes for the production of potassium nitrate |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB377131A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4240818A (en) * | 1979-03-12 | 1980-12-23 | Andreeva Nina K | Procedure for preparing nitrogen-potassium fertilizer |
| CN110862101A (en) * | 2019-12-25 | 2020-03-06 | 安徽胜达化工科技有限公司 | Preparation method of potassium nitrate |
-
1932
- 1932-02-29 GB GB6042/32A patent/GB377131A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4240818A (en) * | 1979-03-12 | 1980-12-23 | Andreeva Nina K | Procedure for preparing nitrogen-potassium fertilizer |
| CN110862101A (en) * | 2019-12-25 | 2020-03-06 | 安徽胜达化工科技有限公司 | Preparation method of potassium nitrate |
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