GB1462633A - Granulating urea - Google Patents

Granulating urea

Info

Publication number
GB1462633A
GB1462633A GB1711173A GB1711173A GB1462633A GB 1462633 A GB1462633 A GB 1462633A GB 1711173 A GB1711173 A GB 1711173A GB 1711173 A GB1711173 A GB 1711173A GB 1462633 A GB1462633 A GB 1462633A
Authority
GB
United Kingdom
Prior art keywords
urea
particles
bed
granulating
stream
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
GB1711173A
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.)
Fisons Ltd
Original Assignee
Fisons Ltd
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 Fisons Ltd filed Critical Fisons Ltd
Priority to GB1711173A priority Critical patent/GB1462633A/en
Publication of GB1462633A publication Critical patent/GB1462633A/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
    • B01J2/12—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic in rotating drums
    • 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
    • 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

1462633 Granulating urea FISONS Ltd 15 May 1974 [10 April 1973] 17111/73 Heading B5A Urea is granulated from a melt containing less than 0À5% by weight of water by tumbling a bed of urea particles in a device rotating about an axis inclined at less than 20 degrees to the horizontal whereby the particles do not fall freely as a curtain within the device, spraying molten urea on to the bed and allowing the particles to grow in size by agglomeration. The device may comprise a rotating drum granulator and the agglomerated particles may be cooled in a gas stream; the fine particles in the stream may be returned to the device or to the melt preparation stage.
GB1711173A 1973-04-10 1973-04-10 Granulating urea Expired GB1462633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1711173A GB1462633A (en) 1973-04-10 1973-04-10 Granulating urea

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1711173A GB1462633A (en) 1973-04-10 1973-04-10 Granulating urea

Publications (1)

Publication Number Publication Date
GB1462633A true GB1462633A (en) 1977-01-26

Family

ID=10089445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1711173A Expired GB1462633A (en) 1973-04-10 1973-04-10 Granulating urea

Country Status (1)

Country Link
GB (1) GB1462633A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2647050A1 (en) * 1989-05-16 1990-11-23 Seppic Sa PROCESS FOR THE PRODUCTION OF A DIRECTLY COMPRESSIBLE STARCH FOR USE IN THE MANUFACTURE OF TABLETS AND TABLETS OBTAINED
BE1007521A5 (en) * 1992-09-29 1995-07-25 Kali & Salz Ag Method for preventing formation of dust during loading or unloading and transport of granulated fertilizer sulfates.
WO2000000452A1 (en) * 1998-06-29 2000-01-06 Kemira Agro Oy A process for the preparation of compound fertilizer granules
WO2001021556A1 (en) * 1999-09-21 2001-03-29 Kemira Agro Oy A process for manufacturing compound fertilizer granules
WO2019215193A1 (en) 2018-05-08 2019-11-14 Thyssenkrupp Fertilizer Technology Gmbh Internal cooling system for fluid-bed granulation plants
EP3593898A1 (en) 2018-07-13 2020-01-15 thyssenkrupp Fertilizer Technology GmbH Producing fertilizer granules with a defined size distribution

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2647050A1 (en) * 1989-05-16 1990-11-23 Seppic Sa PROCESS FOR THE PRODUCTION OF A DIRECTLY COMPRESSIBLE STARCH FOR USE IN THE MANUFACTURE OF TABLETS AND TABLETS OBTAINED
EP0402186A2 (en) * 1989-05-16 1990-12-12 S.E.P.P.I.C., Societe D'exploitation De Produits Pour Les Industries Chimiques Process for the preparation of directly compressible starch for the manufacture of tablets and the tablets obtained thereby
EP0402186A3 (en) * 1989-05-16 1991-04-10 S.E.P.P.I.C., Societe D'exploitation De Produits Pour Les Industries Chimiques Process for the preparation of directly compressible starch for the manufacture of tablets and the tablets obtained thereby
US5164014A (en) * 1989-05-16 1992-11-17 Societe D'exploitation De Produits Pour Les Industries Chimiques S.E.P.P.I.C. Process for the manufacture of a directly compressible starch for use in the manufacture of tablets, and tablets obtained
BE1007521A5 (en) * 1992-09-29 1995-07-25 Kali & Salz Ag Method for preventing formation of dust during loading or unloading and transport of granulated fertilizer sulfates.
WO2000000452A1 (en) * 1998-06-29 2000-01-06 Kemira Agro Oy A process for the preparation of compound fertilizer granules
US6709685B1 (en) 1998-06-29 2004-03-23 Kemira Agro Oy Process for the preparation of compound fertilizer granules
WO2001021556A1 (en) * 1999-09-21 2001-03-29 Kemira Agro Oy A process for manufacturing compound fertilizer granules
WO2019215193A1 (en) 2018-05-08 2019-11-14 Thyssenkrupp Fertilizer Technology Gmbh Internal cooling system for fluid-bed granulation plants
EP3593898A1 (en) 2018-07-13 2020-01-15 thyssenkrupp Fertilizer Technology GmbH Producing fertilizer granules with a defined size distribution

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee