GB689397A - Improved granular nitrogen product - Google Patents
Improved granular nitrogen productInfo
- Publication number
- GB689397A GB689397A GB16965/50A GB1696550A GB689397A GB 689397 A GB689397 A GB 689397A GB 16965/50 A GB16965/50 A GB 16965/50A GB 1696550 A GB1696550 A GB 1696550A GB 689397 A GB689397 A GB 689397A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reaction mass
- per cent
- granules
- potash
- sulphuric acid
- 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
- C05B19/02—Granulation or pelletisation of phosphatic fertilisers, other than slag of superphosphates or mixtures containing them
-
- 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
Granular high nitrogen fertilizers are prepared by adding to raw fertilizer such as den superphosphate with or without muriate of potash, anhydrous ammonia and sulphuric acid diluted with sufficient water to control the temperature of the reaction mass between 212 and 300 DEG F, and tumbling the reaction mass during the addition to form granules which are coated with agitation to give a moisture content of 2 to 4 per cent in the final granule, which are then sieved to a uniform size, the fines and crushed oversize granules being recycled. The ammonia and sulphuric acid are preferably added through a common nozzle to the reaction mass in a rotary granulator. The product, of which 75 per cent is between 8 and 16 mesh per linear inch, may contain up to 15 per cent nitrogen and may be mixed with similar sized granules of other fertilizers such as superphosphate, potash or dolomite, a small proportion of clay and carbon black may be added.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US689397XA | 1950-02-16 | 1950-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB689397A true GB689397A (en) | 1953-03-25 |
Family
ID=22085680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16965/50A Expired GB689397A (en) | 1950-02-16 | 1950-07-06 | Improved granular nitrogen product |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB689397A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1011440B (en) * | 1954-08-23 | 1957-07-04 | Albert Ag Chem Werke | Process for the production of mixed fertilizers |
| DE1022240B (en) * | 1953-06-03 | 1958-01-09 | Rumianca Spa | Process for the production of fertilizers containing phosphoric acid, nitrogen, calcium and potassium in granular form |
| DE1025431B (en) * | 1956-01-31 | 1958-03-06 | Du Pont | Process for the granulation of moist, solid urea-formaldehyde fertilizers |
| DE1131241B (en) * | 1955-11-30 | 1962-06-14 | Facerform Company | Process for the production of phosphate fertilizers |
| DE1137748B (en) * | 1959-04-10 | 1962-10-11 | Kalk Chemische Fabrik Gmbh | Process for the production of granulated multi-nutrient fertilizers |
| DE1152714B (en) * | 1957-09-18 | 1963-08-14 | Lummus Co | Method and device for the continuous production of grained mixed fertilizers |
| DE1592724B1 (en) * | 1964-03-24 | 1970-06-18 | Polysius Ag | Method and device for granulating dusty or flour-like fertilizers |
| DE2723221A1 (en) * | 1976-05-25 | 1977-12-01 | Ciba Geigy Ag | PROCESS AND PLANT FOR THE PRODUCTION OF GRANULATES |
-
1950
- 1950-07-06 GB GB16965/50A patent/GB689397A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1022240B (en) * | 1953-06-03 | 1958-01-09 | Rumianca Spa | Process for the production of fertilizers containing phosphoric acid, nitrogen, calcium and potassium in granular form |
| DE1011440B (en) * | 1954-08-23 | 1957-07-04 | Albert Ag Chem Werke | Process for the production of mixed fertilizers |
| DE1131241B (en) * | 1955-11-30 | 1962-06-14 | Facerform Company | Process for the production of phosphate fertilizers |
| DE1025431B (en) * | 1956-01-31 | 1958-03-06 | Du Pont | Process for the granulation of moist, solid urea-formaldehyde fertilizers |
| DE1152714B (en) * | 1957-09-18 | 1963-08-14 | Lummus Co | Method and device for the continuous production of grained mixed fertilizers |
| DE1137748B (en) * | 1959-04-10 | 1962-10-11 | Kalk Chemische Fabrik Gmbh | Process for the production of granulated multi-nutrient fertilizers |
| DE1592724B1 (en) * | 1964-03-24 | 1970-06-18 | Polysius Ag | Method and device for granulating dusty or flour-like fertilizers |
| DE2723221A1 (en) * | 1976-05-25 | 1977-12-01 | Ciba Geigy Ag | PROCESS AND PLANT FOR THE PRODUCTION OF GRANULATES |
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