GB1391819A - Process for the preparation of granulated materials - Google Patents
Process for the preparation of granulated materialsInfo
- Publication number
- GB1391819A GB1391819A GB5921472A GB5921472A GB1391819A GB 1391819 A GB1391819 A GB 1391819A GB 5921472 A GB5921472 A GB 5921472A GB 5921472 A GB5921472 A GB 5921472A GB 1391819 A GB1391819 A GB 1391819A
- Authority
- GB
- United Kingdom
- Prior art keywords
- granulating
- rotary tube
- tons
- bed
- sprayed
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fertilizers (AREA)
Abstract
1391819 Granulating HOECHSTAG 21 Dec 1972 [27 Dec 1971] 59214/72 Heading B5A [Also in Division C1] Granulated material, e.g. fertilizer, having a low water content is produced by prilling a portion of molten material in a spraying tower, producing a granulating bed from the grains so formed, e.g. a fluidized bed or one produced by a rotary tube, granulating drum or granulating plate, and spraying another portion of molten material on to this granulating bed. The range of granule size may be varied by altering the ratio of melt prilled to melt sprayed into the granulating bed. The fertilizers may be calcium amonium nitrate, N-P-K mixtures, N-MgO mixtures and nitrogen fertilizers containing sulphate. In an example, 44 tons of mash consisting of 30 tons of ammonium nitrate and 14 tons of calcium carbonate are prepared; 27 tons are sprayed at 150-160‹ C. in a spraying tower and the hot grain is passed into a rotary tube and sprayed with the remainder of the mash. An arrangement of apparatus includes a mixer feeding to the spraying tower with a separate feed to the rotary tube which feeds to a cooling device, a screening device and finally a powdering device and silo. Re-cycling lines are provided so that oversize grains from the screen are passed via a crusher either back to the screen or to the rotary tube; whilst undersize grains are passed either via melting equipment into the mixer, or directly to the rotary tube.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712164731 DE2164731B2 (en) | 1971-12-27 | 1971-12-27 | Process for the production of granulated fertilizers containing ammonium nitrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1391819A true GB1391819A (en) | 1975-04-23 |
Family
ID=5829315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5921472A Expired GB1391819A (en) | 1971-12-27 | 1972-12-21 | Process for the preparation of granulated materials |
Country Status (10)
| Country | Link |
|---|---|
| AT (1) | AT319288B (en) |
| BE (1) | BE793357A (en) |
| CS (1) | CS166047B2 (en) |
| DE (1) | DE2164731B2 (en) |
| FR (1) | FR2166065B1 (en) |
| GB (1) | GB1391819A (en) |
| IT (1) | IT972868B (en) |
| NL (1) | NL7217520A (en) |
| PL (1) | PL82474B1 (en) |
| RO (1) | RO63339A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2905731C3 (en) * | 1979-02-15 | 1985-11-21 | Walther & Cie Ag, 5000 Koeln | Process for the production of ammonia granules |
| JPS6012895B2 (en) * | 1979-11-28 | 1985-04-04 | 三井東圧化学株式会社 | Granulation equipment |
| DE4342606C2 (en) * | 1993-12-14 | 1995-11-02 | Uhde Gmbh | Process and plant for producing ammonium nitrate-containing granules of the desired grain size |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3232703A (en) * | 1962-04-23 | 1966-02-01 | Cons Mining & Smelting Co | Process for the production of ammonium nitrate |
-
1971
- 1971-12-27 DE DE19712164731 patent/DE2164731B2/en not_active Ceased
-
1972
- 1972-12-19 RO RO7321372A patent/RO63339A/en unknown
- 1972-12-21 CS CS883572A patent/CS166047B2/cs unknown
- 1972-12-21 GB GB5921472A patent/GB1391819A/en not_active Expired
- 1972-12-22 NL NL7217520A patent/NL7217520A/xx not_active Application Discontinuation
- 1972-12-22 IT IT3352572A patent/IT972868B/en active
- 1972-12-23 PL PL15980872A patent/PL82474B1/pl unknown
- 1972-12-27 FR FR7246363A patent/FR2166065B1/fr not_active Expired
- 1972-12-27 AT AT1103972A patent/AT319288B/en not_active IP Right Cessation
- 1972-12-27 BE BE793357D patent/BE793357A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS166047B2 (en) | 1976-01-29 |
| BE793357A (en) | 1973-06-27 |
| DE2164731B2 (en) | 1975-10-30 |
| AT319288B (en) | 1974-12-10 |
| DE2164731A1 (en) | 1973-07-05 |
| NL7217520A (en) | 1973-06-29 |
| PL82474B1 (en) | 1975-10-31 |
| RO63339A (en) | 1978-07-15 |
| FR2166065B1 (en) | 1976-10-29 |
| FR2166065A1 (en) | 1973-08-10 |
| IT972868B (en) | 1974-05-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |