GB891562A - Process for the production of granular ammonium nitrate - Google Patents
Process for the production of granular ammonium nitrateInfo
- Publication number
- GB891562A GB891562A GB5102/60A GB510260A GB891562A GB 891562 A GB891562 A GB 891562A GB 5102/60 A GB5102/60 A GB 5102/60A GB 510260 A GB510260 A GB 510260A GB 891562 A GB891562 A GB 891562A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ammonium nitrate
- granules
- mixture
- cylinder
- pure
- 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
- C05C—NITROGENOUS FERTILISERS
- C05C1/00—Ammonium nitrate fertilisers
- C05C1/02—Granulation; Pelletisation; Stabilisation; Colouring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
Substantially pure, granular ammonium nitrate is prepared by adding to a hot, pure ammonium nitrate solution having a concentration of at least 95% from 0,1 to 1% by wt. of hydrated aluminium sulphate to obtain a homogeneous mixture having a temperature of 165 DEG -170 DEG C., granulating the mixture and successively hardening, drying and cooling the resultant granules in a rotating cylinder by a counter current stream of air, the granules leaving the cylinder at between 80 DEG and 90 DEG C. The hot pure ammonium nitrate solution preferably has a concentration of 95-96,5% and may be prepared by concentrating a more dilute solution by heating to 175 DEG -180 DEG C. The aluminium sulphate preferably contains 17 molecules of water of crystallization and is present in the mixture in proportion 0,3-0,5% wt. After granulation, granules leaving the cylinder at preferably between 80 DEG -85 DEG C. are sieved to retain granules of diameter between 1,75 and 4,5 mm., fines passing through the sieve being recycled to the granulating device in proportion between 2-3 times the weight of the pure ammonium nitrate starting material.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR891562X | 1959-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB891562A true GB891562A (en) | 1962-03-14 |
Family
ID=9387850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5102/60A Expired GB891562A (en) | 1959-03-05 | 1960-02-12 | Process for the production of granular ammonium nitrate |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB891562A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3953192A (en) | 1973-01-15 | 1976-04-27 | Chevron Research Company | Non-caking hydroxy-aluminum polymer-coated ammonium salt compositions |
| FR2508895A1 (en) * | 1981-07-03 | 1983-01-07 | Azote Sa Cie Neerlandaise | PROCESS FOR THE MANUFACTURE OF PELLETS CONTAINING UREA AS A MAIN COMPONENT |
-
1960
- 1960-02-12 GB GB5102/60A patent/GB891562A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3953192A (en) | 1973-01-15 | 1976-04-27 | Chevron Research Company | Non-caking hydroxy-aluminum polymer-coated ammonium salt compositions |
| FR2508895A1 (en) * | 1981-07-03 | 1983-01-07 | Azote Sa Cie Neerlandaise | PROCESS FOR THE MANUFACTURE OF PELLETS CONTAINING UREA AS A MAIN COMPONENT |
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