GB1318970A - Process and apparatus for coating granules - Google Patents

Process and apparatus for coating granules

Info

Publication number
GB1318970A
GB1318970A GB4607570A GB4607570A GB1318970A GB 1318970 A GB1318970 A GB 1318970A GB 4607570 A GB4607570 A GB 4607570A GB 4607570 A GB4607570 A GB 4607570A GB 1318970 A GB1318970 A GB 1318970A
Authority
GB
United Kingdom
Prior art keywords
coating
fluid
spray
granules
pipe
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
Application number
GB4607570A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Stamicarbon BV filed Critical Stamicarbon BV
Publication of GB1318970A publication Critical patent/GB1318970A/en
Expired legal-status Critical Current

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
    • B01J2/30—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using agents to prevent the granules sticking together; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • 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
    • 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

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Medicinal Preparation (AREA)
  • Glanulating (AREA)
  • Pinball Game Machines (AREA)
  • Fertilizers (AREA)
  • Coating Apparatus (AREA)
  • Pretreatment Of Seeds And Plants (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

1318970 Coating granular material STAMICARBON NV 28 Sept 1970 [3 Oct 1969] 46075/70 Headings B2E B2F and B2L Apparatus for coating granular material comprises a spray head 3 which forms a conical film 17 of oleaginous fluid which runs down obliquely disposed walls 4, 5 so that particles entering the coating chamber above the spray head pass through the film and then run down the walls 4, 5 to pick up more coating fluid. The particles then pass to a series of drums 22, 23, 24 with rotary vanes which mix the coated particles to produce an even coating thereon. The coating column has a water jacket 18 which can be filled with hot water to heat the granules and fluid during coating. The spray nozzle comprises a chamber in two parts 10, 11 a tangential inlet being provided to a supply pipe 13 and a tangential outlet to a return pipe 14. A valve is provided in the pipe 14 and when open allows coating medium to flow through from pipe 13 to 14 without being projected from the spray outlet 16. When the valve is closed or partially closed spray is emitted from the nozzle 16 in the form of a conical film due to the centrifugal force built up in the chambers 10, 11. The granules may be of urea and can be coated with a fluid comprising 75% mineral oil, 15% paraffin wax and 10% fat. Such a composition may be applied to the granules at a temperature in the range of 50‹ to 60‹C.
GB4607570A 1969-10-03 1970-09-28 Process and apparatus for coating granules Expired GB1318970A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL696914947A NL140744B (en) 1969-10-03 1969-10-03 METHOD AND DEVICE FOR COVERING GRAINS WITH A CLOSED THIN LAYER.

Publications (1)

Publication Number Publication Date
GB1318970A true GB1318970A (en) 1973-05-31

Family

ID=19808031

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4607570A Expired GB1318970A (en) 1969-10-03 1970-09-28 Process and apparatus for coating granules

Country Status (12)

Country Link
JP (1) JPS4937630B1 (en)
AT (1) AT299272B (en)
BE (1) BE756882A (en)
BG (1) BG18419A3 (en)
DE (1) DE2048621A1 (en)
ES (1) ES384187A1 (en)
FR (1) FR2068267A5 (en)
GB (1) GB1318970A (en)
NL (1) NL140744B (en)
NO (1) NO125846B (en)
RO (1) RO63890A (en)
ZA (1) ZA706584B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997027264A1 (en) * 1996-01-24 1997-07-31 Thermal Energy Accumulator Products Pty. Ltd. An encapsulated phase change substance
WO1999006141A1 (en) * 1997-07-31 1999-02-11 Frank Petrick Method and device for coating and/or sheathing granular particles with a setting adhesive

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2627404A1 (en) * 1988-02-24 1989-08-25 Total France Coating particles with low m.pt material - by passing them through molten material under inert atmos. and collecting them when coating has solidified

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997027264A1 (en) * 1996-01-24 1997-07-31 Thermal Energy Accumulator Products Pty. Ltd. An encapsulated phase change substance
WO1999006141A1 (en) * 1997-07-31 1999-02-11 Frank Petrick Method and device for coating and/or sheathing granular particles with a setting adhesive

Also Published As

Publication number Publication date
NL6914947A (en) 1971-04-06
DE2048621A1 (en) 1971-04-15
NL140744B (en) 1974-01-15
ES384187A1 (en) 1973-01-01
AT299272B (en) 1972-06-12
ZA706584B (en) 1971-05-27
RO63890A (en) 1979-01-15
BE756882A (en) 1971-03-30
FR2068267A5 (en) 1971-08-20
BG18419A3 (en) 1974-10-25
JPS4937630B1 (en) 1974-10-11
NO125846B (en) 1972-11-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees