GB346734A - Improvements in and relating to the production of potassium nitrate with simultaneous obtaining of dimagnesium phosphate - Google Patents
Improvements in and relating to the production of potassium nitrate with simultaneous obtaining of dimagnesium phosphateInfo
- Publication number
- GB346734A GB346734A GB30910/29A GB3091029A GB346734A GB 346734 A GB346734 A GB 346734A GB 30910/29 A GB30910/29 A GB 30910/29A GB 3091029 A GB3091029 A GB 3091029A GB 346734 A GB346734 A GB 346734A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phosphate
- dimagnesium phosphate
- potassium nitrate
- precipitate
- dimagnesium
- 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
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B9/00—Fertilisers based essentially on phosphates or double phosphates of magnesium
-
- 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
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)
Abstract
The Specification as open to inspection under Sect. 91 (3) (a) comprises a modification of the process of the parent Specification for producing potassium nitrate and dimagnesium phosphate, wherein crude phosphate is decomposed with nitric acid, and is treated with a mixture of potassium and magnesium sulphates, or a suitable natural compound such as schonite, leonite or langbeinite, the quantity of magnesium being chosen equivalent to precipitate the phosphoric acid as dimagnesium phosphate. After the separation of gypsum, the solution is treated with potassium carbonate to precipitate the bulk of the magnesium as dimagnesium phosphate, which is separated. The remaining, say, 1 per cent is precipitated by further addition of potassium carbonate as trimagnesium phosphate, which is subsequently used to precipitate dimagnesium phosphate. Potassium nitrate is obtained by evaporation and cooling of the mother liquor, or by cooling alone.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE346734X | 1928-12-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB346734A true GB346734A (en) | 1931-04-15 |
Family
ID=6255463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30910/29A Expired GB346734A (en) | 1928-12-05 | 1929-10-11 | Improvements in and relating to the production of potassium nitrate with simultaneous obtaining of dimagnesium phosphate |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB346734A (en) |
-
1929
- 1929-10-11 GB GB30910/29A patent/GB346734A/en not_active Expired
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