GB894919A - Process for producing coated particles - Google Patents
Process for producing coated particlesInfo
- Publication number
- GB894919A GB894919A GB3235559A GB3235559A GB894919A GB 894919 A GB894919 A GB 894919A GB 3235559 A GB3235559 A GB 3235559A GB 3235559 A GB3235559 A GB 3235559A GB 894919 A GB894919 A GB 894919A
- Authority
- GB
- United Kingdom
- Prior art keywords
- particles
- coating material
- paris
- plaster
- fertilizer
- 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
-
- 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
- B01J2/006—Coating of the granules without description of the process or the device by which the granules are obtained
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
- C05C9/005—Post-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fertilizers (AREA)
Abstract
Particles of fertilizer are coated with e.g. calcium carbonate, china clay or plaster of Paris, by contacting them with a hot gas to make their surfaces liquid or plastic and then feeding them to a dish granulator e.g. of the kind described in Specification 811,610, containing the coating material. The fertilizer may be urea alone or mixed with ammonium sulphate and/or potassium chloride or in a specific example 10% ammonium nitrate, 70% ammonium sulphate and 20% potassium chloride, by weight.ALSO:Particles of e.g. urea are coated with e.g. calcium carbonate, china clay or plaster of Paris by contacting them with a hot gas to make their surfaces liquid or plastic and then feeding them to a dish granulator, e.g. of the kind described in Specification 811,610, containing the coating material. The particles are preferably introduced at a zone containing coating material but few particles.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3235559A GB894919A (en) | 1959-09-23 | 1959-09-23 | Process for producing coated particles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3235559A GB894919A (en) | 1959-09-23 | 1959-09-23 | Process for producing coated particles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB894919A true GB894919A (en) | 1962-04-26 |
Family
ID=10337345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3235559A Expired GB894919A (en) | 1959-09-23 | 1959-09-23 | Process for producing coated particles |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB894919A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993010062A1 (en) * | 1991-11-15 | 1993-05-27 | Laszlo Paszner | Coating method for encapsulation of particulate matter |
EP0899007A2 (en) * | 1997-08-28 | 1999-03-03 | Gian Maria Bercelli | Process for producing granular fertilizers and relevant granulating plant |
-
1959
- 1959-09-23 GB GB3235559A patent/GB894919A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993010062A1 (en) * | 1991-11-15 | 1993-05-27 | Laszlo Paszner | Coating method for encapsulation of particulate matter |
EP0899007A2 (en) * | 1997-08-28 | 1999-03-03 | Gian Maria Bercelli | Process for producing granular fertilizers and relevant granulating plant |
EP0899007A3 (en) * | 1997-08-28 | 1999-11-17 | Gian Maria Bercelli | Process for producing granular fertilizers and relevant granulating plant |
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