GB535470A - A process for the granulation of superphosphate - Google Patents
A process for the granulation of superphosphateInfo
- Publication number
- GB535470A GB535470A GB21759/39A GB2175939A GB535470A GB 535470 A GB535470 A GB 535470A GB 21759/39 A GB21759/39 A GB 21759/39A GB 2175939 A GB2175939 A GB 2175939A GB 535470 A GB535470 A GB 535470A
- Authority
- GB
- United Kingdom
- Prior art keywords
- effected
- stage
- superphosphate
- movement
- mass
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
- Fodder In General (AREA)
Abstract
535,470. Superphosphate. SILESIA, VEREIN CHEMISOHER FABRIKEN. July 26, 1939. No. 21759. Convention date, Aug. 15, 1938. [Class 1 (iii)] Superphosphate is granulated by converting it into a plastic mass by mechanical treatment involving pressure and movement, and then treating the plastified mass by simultaneous movement and heating. The first stage may be effected by means of edge mills, extrusion presses or pressing worms. and the second stage may be effected in rotary tubes or mixing drums which may be internally or externally heated. An example is given, in which the second stage is effected at 120‹C. Specification 491,841 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES133430D DE747197C (en) | 1938-08-16 | 1938-08-16 | Process for coring superphosphate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB535470A true GB535470A (en) | 1941-04-10 |
Family
ID=7539396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21759/39A Expired GB535470A (en) | 1938-08-16 | 1939-07-26 | A process for the granulation of superphosphate |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE747197C (en) |
| FR (1) | FR858669A (en) |
| GB (1) | GB535470A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE969267C (en) * | 1951-08-09 | 1958-05-14 | Chemische Werke Rombach G M B | Process for the production of grained or shaped superphosphate |
| DE1004630B (en) * | 1954-05-11 | 1957-03-21 | Saint Gobain | Process for the production of granulated superphosphate |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR495578A (en) * | 1918-01-14 | 1919-10-11 | Thomas Hill | Process for the manufacture of superphosphates |
| GB407988A (en) * | 1931-08-22 | 1934-03-22 | Henry Ernest Dod | Improvement in process of producing concentrated fertilizer |
| US1985810A (en) * | 1932-04-18 | 1934-12-25 | Wight Edward Hyatt | Preparation of superphosphate |
| FR757814A (en) * | 1932-06-30 | 1934-01-05 | Method and device for the production of granulated materials | |
| DK51447C (en) * | 1934-04-21 | 1936-03-30 | Bamag Meguin Ag | Method for the Preparation of Irradiated Superphosphate Mixture Fertilizers. |
| FR822891A (en) * | 1935-12-11 | 1938-01-10 | Davison Chemical Corp | Improvements in superphosphate treatment processes |
-
1938
- 1938-08-16 DE DES133430D patent/DE747197C/en not_active Expired
-
1939
- 1939-07-26 GB GB21759/39A patent/GB535470A/en not_active Expired
- 1939-08-04 FR FR858669D patent/FR858669A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE747197C (en) | 1944-09-13 |
| FR858669A (en) | 1940-11-30 |
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