GB368559A - Improved manufacture of fertilisers - Google Patents
Improved manufacture of fertilisersInfo
- Publication number
- GB368559A GB368559A GB10779/31A GB1077931A GB368559A GB 368559 A GB368559 A GB 368559A GB 10779/31 A GB10779/31 A GB 10779/31A GB 1077931 A GB1077931 A GB 1077931A GB 368559 A GB368559 A GB 368559A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phosphate
- phosphoric
- sulphuric
- natural
- mixture
- 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
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/02—Superphosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
A dry and pulverulent fertilizer having a base of ammonium magnesium phosphate is produced by treating natural tricalcium phosphate with a mixture of phosphoric and sulphuric acids to convert the natural phosphate into a mixture of soluble monocalcium phosphate and calcium sulphate, adding triammonium phosphate in a quantity approximately double the quantity of tricalcium phosphate present in the natural phosphate and neutralizing the solution with calcined magnesia. The mixture of sulphuric and phosphoric acids contains substantially 74 per cent of phosphoric acid at substantially 30 DEG B<\>ae and substantially 26 per cent of sulphuric acid at substantially 60 DEG B<\>ae by weight. The process may be carried out in the apparatus shown. The phosphoric and sulphuric acids are added from tanks R<2>, R<1> to a <PICT:0368559/III/1> mixer B to which is also added the natural phosphate from a hopper S. After the reaction the triammonium phosphate is added and the liquid led to a mixer conveyer M where it is mixed with the calcined magnesia from a hopper T.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR368559X | 1930-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB368559A true GB368559A (en) | 1932-03-10 |
Family
ID=8894479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10779/31A Expired GB368559A (en) | 1930-04-14 | 1931-04-13 | Improved manufacture of fertilisers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB368559A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2700605A (en) * | 1951-11-10 | 1955-01-25 | Best Fertilizers Co | Process for making a fluid phosphate fertilizer slurry suitable for pelletizing |
-
1931
- 1931-04-13 GB GB10779/31A patent/GB368559A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2700605A (en) * | 1951-11-10 | 1955-01-25 | Best Fertilizers Co | Process for making a fluid phosphate fertilizer slurry suitable for pelletizing |
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