DE69303284T2 - Verfahren zur herstellung von harnstoffgranulaten - Google Patents

Verfahren zur herstellung von harnstoffgranulaten

Info

Publication number
DE69303284T2
DE69303284T2 DE69303284T DE69303284T DE69303284T2 DE 69303284 T2 DE69303284 T2 DE 69303284T2 DE 69303284 T DE69303284 T DE 69303284T DE 69303284 T DE69303284 T DE 69303284T DE 69303284 T2 DE69303284 T2 DE 69303284T2
Authority
DE
Germany
Prior art keywords
urea
pct
melt
solution
sec
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 - Lifetime
Application number
DE69303284T
Other languages
English (en)
Other versions
DE69303284D1 (de
Inventor
Andre Kayaert
Roger Antonus
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.)
Yara Sluiskil BV
Original Assignee
Hydro Agri Sluiskil 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 Hydro Agri Sluiskil BV filed Critical Hydro Agri Sluiskil BV
Application granted granted Critical
Publication of DE69303284D1 publication Critical patent/DE69303284D1/de
Publication of DE69303284T2 publication Critical patent/DE69303284T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B01J2/16—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by suspending the powder material in a gas, e.g. in fluidised beds or as a falling curtain
    • 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
    • B01J2/28—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using special binding agents
    • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Glanulating (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Steroid Compounds (AREA)
DE69303284T 1992-08-07 1993-08-05 Verfahren zur herstellung von harnstoffgranulaten Expired - Lifetime DE69303284T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ID924539 1992-08-07
PCT/NL1993/000167 WO1994003267A1 (en) 1992-08-07 1993-08-05 Process for the production of urea granules

Publications (2)

Publication Number Publication Date
DE69303284D1 DE69303284D1 (de) 1996-07-25
DE69303284T2 true DE69303284T2 (de) 1997-02-06

Family

ID=11004968

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69303284T Expired - Lifetime DE69303284T2 (de) 1992-08-07 1993-08-05 Verfahren zur herstellung von harnstoffgranulaten

Country Status (17)

Country Link
US (1) US5653781A (de)
EP (1) EP0653961B1 (de)
JP (1) JP3388743B2 (de)
KR (1) KR100299404B1 (de)
AT (1) ATE139463T1 (de)
AU (1) AU666404B2 (de)
BG (1) BG61332B1 (de)
CA (1) CA2141874C (de)
DE (1) DE69303284T2 (de)
ES (1) ES2091037T3 (de)
GE (1) GEP19981292B (de)
NZ (1) NZ256137A (de)
PL (1) PL307334A1 (de)
RO (1) RO113007B1 (de)
RU (1) RU2104258C1 (de)
UA (1) UA26359C2 (de)
WO (1) WO1994003267A1 (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5917110A (en) * 1996-10-18 1999-06-29 Tetra Technologies, Inc. Moisture-resistant calcium containing particles
GB9712583D0 (en) 1997-06-16 1997-08-20 Unilever Plc Production of detergent granulates
GB9712580D0 (en) * 1997-06-16 1997-08-20 Unilever Plc Production of detergent granulates
GB9713748D0 (en) * 1997-06-27 1997-09-03 Unilever Plc Production of detergent granulates
NZ331531A (en) 1997-09-04 2000-01-28 Toyo Engineering Corp method for granulation and granulator
CN1087723C (zh) * 1998-10-15 2002-07-17 王长山 尿素熔盐团粒法尿基复混肥工艺
JP2002095952A (ja) * 2000-09-22 2002-04-02 Freunt Ind Co Ltd 流動層造粒コーティング装置および流動層造粒コーティング方法
JP2002037689A (ja) * 2000-07-24 2002-02-06 Chisso Corp 被覆粒状肥料
DE50300760D1 (de) * 2003-05-07 2005-08-18 Degussa Umhülltes Natriumpercarbonatgranulat mit verbesserter Lagerstabilität
NL1023941C2 (nl) * 2003-07-17 2005-01-18 Dsm Ip Assets Bv Werkwijze voor het bereiden van ureum granules.
CA2545073C (en) * 2003-11-10 2013-02-19 Dsm Ip Assets B.V. Process for the preparation of urea granules
AU2004308899A1 (en) * 2003-12-18 2005-07-14 Georgia-Pacific Resins, Inc. Extended-release nitrogen-containing granular fertilizer
US7704420B2 (en) 2003-12-23 2010-04-27 Yara International Asa Spraying device and method for fluidised bed granulation
US20050163911A1 (en) * 2004-01-28 2005-07-28 Cargill, Inc. Animal feed product containing crushed urea
NL1025805C2 (nl) * 2004-03-25 2005-09-27 Dsm Ip Assets Bv Werkwijze voor de granulatie van ureum.
NL1025954C2 (nl) * 2004-04-15 2005-10-18 Dsm Ip Assets Bv Werkwijze voor het optimaliseren van een fluïdbed granulator.
JP4852270B2 (ja) * 2005-07-13 2012-01-11 東洋エンジニアリング株式会社 顆粒尿素製品の製造方法
US7862642B2 (en) * 2006-12-14 2011-01-04 Georgia-Pacific Chemicals Llc Extended-release urea-based granular fertilizer
JP2009161367A (ja) * 2007-12-28 2009-07-23 Mitsubishi Chemical Agri Inc 粒状緩効性窒素肥料
NO330729B1 (no) * 2008-04-28 2011-06-27 Yara Int Asa Fremgangsmate og granulator for produksjon av granuler
EP2192099A1 (de) * 2008-11-28 2010-06-02 Uhde Fertilizer Technology B.V. Harnstoffgranulationsverfahren mit saurem Scrubbing-System und die anschließende Integration von Ammoniaksalz in Harnstoffgranulate
EP2253374A1 (de) * 2009-05-20 2010-11-24 Stamicarbon B.V. Verfahren zur Herstellung von Granulat
EP2305371A1 (de) * 2009-09-10 2011-04-06 Stamicarbon B.V. Verfahren zur Herstellung von Granulaten
EP2489429A1 (de) * 2011-02-21 2012-08-22 Urea Casale S.A. Fluidbettgranulation von Harn und zugehörige Vorrichtung
EP2497567A1 (de) * 2011-03-10 2012-09-12 Urea Casale S.A. Verfahren und Vorrichtung zur Herstellung eines granulären Harnstoffprodukts
CN102674905A (zh) * 2012-05-14 2012-09-19 山西省霍州市化学工业有限责任公司 一种回收尿素颗粒中粉尘的方法及其装置
US9868098B2 (en) * 2014-02-05 2018-01-16 Green Granulation Technology Limited Fluidized bed granulation
CN104496566B (zh) * 2014-09-12 2017-05-31 山东茂施生态肥料有限公司 一种大颗粒尿素表面再造方法
US10519103B2 (en) 2015-04-01 2019-12-31 Toyo Engineering Corporation Urea production method
EP3384980A1 (de) * 2017-04-06 2018-10-10 SASOL Germany GmbH Verfahren zur herstellung von verschleissstabilen granulierten materialien
DE102017108842A1 (de) 2017-04-25 2018-10-25 Thyssenkrupp Ag Verfahren und Vorrichtung zur Herstellung von Harnstoff
EP3508465B1 (de) 2018-01-08 2023-11-29 thyssenkrupp Fertilizer Technology GmbH Prallbleche im fliessbettkühler

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH398530A (de) * 1957-10-30 1966-03-15 Montedison Spa Kontinuierliches Verfahren zur Herstellung von haltbaren konzentrierten wässrigen Harnstoff, Formaldehyd und Harnstoff-Formaldehyd-Kondensationsprodukte enthaltenden Lösungen
US3112343A (en) * 1959-08-20 1963-11-26 Chemie Linz Ag Free-flowing, storage stable granular or pelletized urea
GB1581761A (en) * 1977-06-09 1980-12-17 Azote Sa Cie Neerlandaise Urea granulation
JPS6034517B2 (ja) * 1978-03-03 1985-08-09 宇部興産株式会社 流動層で尿素を造粒する方法
SU998446A1 (ru) * 1981-01-09 1983-02-23 Ивановский Химико-Технологический Институт Способ получени неслеживающегос гранулированного азотного удобрени
NL8302999A (nl) * 1983-08-27 1985-03-18 Unie Van Kunstmestfab Bv Werkwijze voor het bereiden van granules.
NL8303000A (nl) * 1983-08-27 1985-03-18 Unie Van Kunstmestfab Bv Werkwijze voor het bereiden van granules.
NL8502133A (nl) * 1985-07-26 1987-02-16 Unie Van Kunstmestfab Bv Werkwijze voor het bereiden van granules en granules verkregen met deze werkwijze.

Also Published As

Publication number Publication date
CA2141874A1 (en) 1994-02-17
JP3388743B2 (ja) 2003-03-24
EP0653961B1 (de) 1996-06-19
AU4835493A (en) 1994-03-03
KR100299404B1 (ko) 2002-04-24
KR950702864A (ko) 1995-08-23
WO1994003267A1 (en) 1994-02-17
BG61332B1 (en) 1997-06-30
CA2141874C (en) 2003-04-22
JPH09500608A (ja) 1997-01-21
RO113007B1 (ro) 1998-03-30
BG99405A (bg) 1995-09-29
EP0653961A1 (de) 1995-05-24
ES2091037T3 (es) 1996-10-16
NZ256137A (en) 1995-12-21
GEP19981292B (en) 1998-05-01
US5653781A (en) 1997-08-05
UA26359C2 (uk) 1999-08-30
PL307334A1 (en) 1995-05-15
ATE139463T1 (de) 1996-07-15
AU666404B2 (en) 1996-02-08
RU2104258C1 (ru) 1998-02-10
DE69303284D1 (de) 1996-07-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: YARA SLUISKIL B.V., SLUISKIL, NL