GB903365A - Granulated fertilisers and the production thereof - Google Patents
Granulated fertilisers and the production thereofInfo
- Publication number
- GB903365A GB903365A GB516760A GB516760A GB903365A GB 903365 A GB903365 A GB 903365A GB 516760 A GB516760 A GB 516760A GB 516760 A GB516760 A GB 516760A GB 903365 A GB903365 A GB 903365A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solids
- grain size
- chamber
- basic slag
- mms
- 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)
- Processing Of Solid Wastes (AREA)
Abstract
A granulated fertiliser consists solely of ground basic slag in which case the grain size is between 0,55 and 0,5 mm, or comprises ground basic slag and other constituents in which case the grain size is between 0,35 and 2,5 mms, the granulation having been effected by introducing the fine grained material into a fluidised bed chamber which is devoid of a grating and into which is blown from below a stream of hot gas which expands the solids into a freely floating fluidised layer. The liquid binder which may be water may be added to the solids outside the granulating chamber or sprayed into the granulating chamber independently of the introduction of the solids. The hot gases may be at a temperature of at least 600 DEG C and preferably 800 DEG C. Potassium salts may also be present. The optimum grain size is 0,8 to 1,0 mm for basic slag alone and 1 to 1,5 mm for the mixed fertiliser.ALSO:A granulated fertiliser consists of ground basic slag having a grain size between 0,15 and 1,5 mms., preferably 0,8 to 1,0 mms. Granulation may be effected by introducing the fine grained material into a fluidised bed chamber which is devoid of a grating and into which is blown from below a stream of hot gas which expands the solids into a freely floating fluidised layer. The liquid binder which may be water may be added to the solids outside the granulating chamber or sprayed into the chamber independently of the introduction of the solids. The hot gases may be at a temperature of at least 600 DEG C. and preferably 800 DEG C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM40523A DE1100657B (en) | 1959-02-17 | 1959-02-17 | Process for the production of granulated fertilizers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB903365A true GB903365A (en) | 1962-08-15 |
Family
ID=7303731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB516760A Expired GB903365A (en) | 1959-02-17 | 1960-02-12 | Granulated fertilisers and the production thereof |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1100657B (en) |
| GB (1) | GB903365A (en) |
| SE (1) | SE302467B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1238051B (en) * | 1961-04-11 | 1967-04-06 | Ver Kaliwerke Salzdetfurth A G | Process for the production of granular mixed fertilizers from potash salts and Thomas phosphate slag powder |
| DK97456C (en) * | 1961-09-26 | 1963-12-02 | Erik Tillisch | Process for the preparation of granulated (pelleted) potassium phosphoric acid fertilizer with Thomas flour. |
| DE1257799B (en) * | 1961-11-04 | 1968-01-04 | Wintershall Ag | Process for the production of granulated, abrasion-resistant, thomas phosphate-containing fertilizers |
| DE1241846B (en) * | 1961-12-02 | 1967-06-08 | Hoerder Huettenunion Ag | Process for the production of non-dusting, abrasion-resistant, grainy and spreadable Thomas phosphate fertilizers |
| DE1257801B (en) * | 1962-08-08 | 1968-01-04 | Wintershall Ag | Process for reducing the rate of dissolution and preventing rapid leaching as well as the fixing in the soil of fertilizer granulates with water-soluble plant nutrients |
| DE1237591B (en) * | 1962-10-18 | 1967-03-30 | Scholven Chemie Ag | Process for the production of granulated complex fertilizers |
| DE1268160B (en) * | 1963-07-19 | 1968-05-16 | Hyperphosphat Ges M B H Deutsc | Process for the production of granules from phosphate or phosphate-potash fertilizers that are practically abrasion-resistant and rapidly disintegrate under the action of moisture |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE531742A (en) * | ||||
| DE663410C (en) * | 1932-07-01 | 1938-08-05 | Theodor Wilhelm Pfirrmann Dr | Process and device for graining fertilizers or other substances or mixtures of substances |
| US2586818A (en) * | 1947-08-21 | 1952-02-26 | Harms Viggo | Progressive classifying or treating solids in a fluidized bed thereof |
| DE862755C (en) * | 1949-10-27 | 1953-01-12 | Huettenwerk Hoerde Ag | Duenge melt phosphates and processes for their preparation |
| DE969208C (en) * | 1953-09-13 | 1958-05-14 | Wintershall Ag | Mixed fertilizer made from Thomas phosphate and potash salts |
| DE967767C (en) * | 1954-03-25 | 1957-12-12 | Burbach Kaliwerke Ag | Process for the production of non-dusting and non-baking fertilizers containing potash |
-
1959
- 1959-02-17 DE DEM40523A patent/DE1100657B/en active Pending
-
1960
- 1960-02-12 GB GB516760A patent/GB903365A/en not_active Expired
- 1960-02-17 SE SE159760A patent/SE302467B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1100657B (en) | 1961-03-02 |
| SE302467B (en) | 1968-07-22 |
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