GB863387A - Improvements in and relating to granular fertilizers - Google Patents
Improvements in and relating to granular fertilizersInfo
- Publication number
- GB863387A GB863387A GB2085858A GB2085858A GB863387A GB 863387 A GB863387 A GB 863387A GB 2085858 A GB2085858 A GB 2085858A GB 2085858 A GB2085858 A GB 2085858A GB 863387 A GB863387 A GB 863387A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phosphate
- urea
- less
- granular fertilizers
- relating
- 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
- C05B19/00—Granulation or pelletisation of phosphatic fertilisers, other than slag
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
Granular fertilizers are made by granulating a mixture containing monocalcium phosphate (e.g. in the form of ordinary or triple super-phosphate) and urea in such proportions that the finished product contians not more than 20 (e.g. 10-15) %wt. urea, with addition of water (or steam) so that the material leaving the granulator has less than 8 %wt. moisture, drying at and below 95 DEG C. and cooling to less than 35 DEG C., e.g. 20-25 DEG C. The mixture may also contain one or more of (a) other fertilizer materials p such as potassium chloride and ammonium phosphate or sulphate, (b) material recycled from the final stage of the process and (c) finely divided inert material, in minor quantity, e.g. calcium sulphate hemihydrate, kieselguhr or clay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2085858A GB863387A (en) | 1958-06-30 | 1958-06-30 | Improvements in and relating to granular fertilizers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2085858A GB863387A (en) | 1958-06-30 | 1958-06-30 | Improvements in and relating to granular fertilizers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB863387A true GB863387A (en) | 1961-03-22 |
Family
ID=10152940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2085858A Expired GB863387A (en) | 1958-06-30 | 1958-06-30 | Improvements in and relating to granular fertilizers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB863387A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001042172A1 (en) * | 1999-12-09 | 2001-06-14 | Rotem Amfert Negev Ltd. | Process for the preparation of urea superphosphate fertilizers |
-
1958
- 1958-06-30 GB GB2085858A patent/GB863387A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001042172A1 (en) * | 1999-12-09 | 2001-06-14 | Rotem Amfert Negev Ltd. | Process for the preparation of urea superphosphate fertilizers |
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