GB1271964A - Slow-acting fertilizers - Google Patents
Slow-acting fertilizersInfo
- Publication number
- GB1271964A GB1271964A GB38290/69A GB3829069A GB1271964A GB 1271964 A GB1271964 A GB 1271964A GB 38290/69 A GB38290/69 A GB 38290/69A GB 3829069 A GB3829069 A GB 3829069A GB 1271964 A GB1271964 A GB 1271964A
- Authority
- GB
- United Kingdom
- Prior art keywords
- granules
- coating
- bed
- dispersion
- 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
- 239000003337 fertilizer Substances 0.000 title abstract 4
- 239000011248 coating agent Substances 0.000 abstract 7
- 238000000576 coating method Methods 0.000 abstract 7
- 239000008187 granular material Substances 0.000 abstract 7
- 239000006185 dispersion Substances 0.000 abstract 5
- 239000011347 resin Substances 0.000 abstract 3
- 229920005989 resin Polymers 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 abstract 1
- 239000006260 foam Substances 0.000 abstract 1
- 229920002689 polyvinyl acetate Polymers 0.000 abstract 1
- 239000011118 polyvinyl acetate Substances 0.000 abstract 1
- 229920002554 vinyl polymer Polymers 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
1,271,964. Coating apparatus. SINCAT SOC INDUSTRIATE CATANESE S.p.A. 30 July, 1969 [1 Aug., 1968], No. 38290/69. Heading B2L. [Also in Division C1] A method of coating fertilizer granules with a resin comprises the steps of supporting the granules in a frusto-conical fluidised bed 4 supported by a gaseous current having a temperature of at least 20‹C and injecting a foam formed by mixing an aqueous or organic dispersion or solution of one or more resins into the bed, the shape of the bed causing the granules to rise in the axis of the bed and fall near the periphery of the bed the granules receiving coating as they rise and that coating being dried by the supporting air as they fall. The supporting air is blown by a fan 1 through a heater 2 into the bed. Coating medium 5 is introduced by a nozzle 6 and compressed air, to aid dispersion, through a concentric nozzle 8. A cyclone 11 separates accidentally removed granules from the outgoing air stream. Granules are fed in through a pipe 9 and out through an overflow 14 and the process may be continuous or discontinuous. Several examples of coating are described. In one example a ternary fertilizer was coated with a medium of a 50% by weight dispersion of polyvinyl' acetate. The dispersion was foamed in a mixer and fed in to the coating apparatus with an air stream at 70‹C. In a second example fertilizer granules were coated with 10% by weight of polyvinyl acetate from a 20% dispersion of the resin.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT1971768 | 1968-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1271964A true GB1271964A (en) | 1972-04-26 |
Family
ID=11160625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB38290/69A Expired GB1271964A (en) | 1968-08-01 | 1969-07-30 | Slow-acting fertilizers |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE736967A (en) |
| DE (1) | DE1938933A1 (en) |
| FR (1) | FR2014859A1 (en) |
| GB (1) | GB1271964A (en) |
| NL (1) | NL6911554A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5541009A (en) * | 1993-03-08 | 1996-07-30 | Buck Werke Gmbh & Co. | Process for preparing water-based pyrotechnic active compositions containing metal powder, coated metal powders and use thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3411172A1 (en) * | 1983-07-21 | 1985-01-31 | FTS Fördertechnik Streicher GmbH, 7988 Wangen | Apparatus for the distribution and metering of liquid manure |
| DE3513647C2 (en) * | 1984-04-24 | 1986-11-06 | Helmut 7919 Oberroth Mößmer | Distribution device for spreading liquid manure or the like. In agriculture |
| DK178936B1 (en) * | 2014-08-28 | 2017-06-12 | Harry Højvang Sørensen | SLURRY DISTRIBUTOR |
-
1969
- 1969-07-29 NL NL6911554A patent/NL6911554A/xx unknown
- 1969-07-30 GB GB38290/69A patent/GB1271964A/en not_active Expired
- 1969-07-31 FR FR6926203A patent/FR2014859A1/fr not_active Withdrawn
- 1969-07-31 DE DE19691938933 patent/DE1938933A1/en active Pending
- 1969-08-01 BE BE736967D patent/BE736967A/xx unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5541009A (en) * | 1993-03-08 | 1996-07-30 | Buck Werke Gmbh & Co. | Process for preparing water-based pyrotechnic active compositions containing metal powder, coated metal powders and use thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1938933A1 (en) | 1970-02-05 |
| NL6911554A (en) | 1970-02-03 |
| FR2014859A1 (en) | 1970-04-24 |
| BE736967A (en) | 1970-02-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |