KR950702864A - 우레아 과립제의 제조 방법(process for the production of urea granules) - Google Patents

우레아 과립제의 제조 방법(process for the production of urea granules) Download PDF

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Publication number
KR950702864A
KR950702864A KR1019950700438A KR19950700438A KR950702864A KR 950702864 A KR950702864 A KR 950702864A KR 1019950700438 A KR1019950700438 A KR 1019950700438A KR 19950700438 A KR19950700438 A KR 19950700438A KR 950702864 A KR950702864 A KR 950702864A
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South Korea
Prior art keywords
urea
solution
melt
granulation
contact time
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KR1019950700438A
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English (en)
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KR100299404B1 (ko
Inventor
안드레 퍼민 카야어트
로저 알폰스 카밀레 안토니우스
Original Assignee
시.에이. 반 이퍼렐
히드로 어그리 슬루이스킬 비.브이.(Hydro Agri Sluiskil B.V.)
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Publication of KR950702864A publication Critical patent/KR950702864A/ko
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    • 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

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fertilizers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Glanulating (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Steroid Compounds (AREA)

Abstract

본 발명은 입자화 첨가제로서 포름알데히드, 메틸올우레움, 우레아-포름알데히드 예비축합물 또는 헥사메틸 렌테트라아민을 포함하고 있는 우레아 용융을 또는 용액을 매우 미세한 소적 형태로 우레아 입자의 유동층으로 분무시키되 상기 입자화 첨가제는 그 단계에서 입자화시키기 전에 첨가시키고, 상기 우레아 용융물 또는 용액과 상기 입자화 첨가제의 혼합물은 적어도 20초하지만 20분 이하의 접촉 시간을 갖는 것에 의해 상기 우레아 용융물 또는 용액으로 부터 우레아 과립자를 제조하는 방법인 것이다.

Description

우레아 과립제의 제조 방법(PROCESS FOR THE PRODUCTION OF UREA GRANULES)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (6)

  1. 입자화 첨가제로서 포름알데히드, 메틸올우레움, 우레아-포름알데히드 예비축합물 또는 헥사메틸렌테트라아민을 포함하고 있는 우레아 용융물 또는 용액을 매우 미세한 소적 형태로 우레아 입자의 유동층으로 분무시키되 상기 입자화 첨가제는 그 단계에서 입자화시키기 전에 첨가시키고, 상기 우레아 용융물 또는 용액과 상기 입자화 첨가제의 혼합물은 적어도 20초 하지만 20분 이하의 접촉 시간을 갖는 것에 의해 상기 우레아 용융물 또는 용액으로 부터 우레아 과립자를 제조하는 방법.
  2. 제1항에 있어서, 상기 접촉 시간은 25초와 15분 사이로 하여서 우레아 과립제를 제조하는 방법.
  3. 제1항 또는 제2항에 있어서, 상기 입자화 첨가제의 양은 우레아 과립제 중량을 기초로 포름알데히드로 계산해서 0.3과 0.8중량% 사이로 하여서 우레아 과립제를 제조하는 방법.
  4. 제1항 내지 제3항 중 어느 하나의 항에 있어서, 상기 필요한 접촉 시간은 혼합 장치와 유동층 사이에 있는 완충 용기의 존재로 인해 제공되게 되는 우레아 과립제를 제조하는 방법.
  5. 제1항 내지 제4항 중 어느 하나의 항에 있어서, 상기 필요한 접촉 시간은 상기 우레아 용융물 또는 용액이 입자화되도록 상기 우레아 용액에서 수분을 증발시키기 전에 상기 우레아 용액에다 입자화 첨가제를 첨가시킴으로써 제공되게 되는 우레아 과립제를 제조하는 방법.
  6. 제1항 내지 제5항 중 어느 하나의 항에 있어서, 상기 매우 미세한 소적의 크기는 25μm 250μm 사이로 하여서 되는 우레아 과립제를 제조하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950700438A 1992-08-07 1993-08-05 우레아과립체의제조방법 KR100299404B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ID924539 1992-08-07
IDP-004539 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
KR950702864A true KR950702864A (ko) 1995-08-23
KR100299404B1 KR100299404B1 (ko) 2002-04-24

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Application Number Title Priority Date Filing Date
KR1019950700438A KR100299404B1 (ko) 1992-08-07 1993-08-05 우레아과립체의제조방법

Country Status (17)

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

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
GB9712580D0 (en) * 1997-06-16 1997-08-20 Unilever Plc Production of detergent granulates
GB9712583D0 (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
SI1475350T1 (sl) * 2003-05-07 2005-12-31 Degussa Prevlecene granule natrijevega perkarbonata z izboljsano stabilnostjo pri skladiscenju
NL1023941C2 (nl) * 2003-07-17 2005-01-18 Dsm Ip Assets Bv Werkwijze voor het bereiden van ureum granules.
EA009533B1 (ru) * 2003-11-10 2008-02-28 ДСМ АйПи ЭССЕТС Б.В. Способ приготовления гранул мочевины
KR20060101770A (ko) * 2003-12-18 2006-09-26 조지아-퍼시픽 레진스, 인코포레이티드 서방성 질소 함유 과립형 비료
WO2005061118A1 (en) * 2003-12-23 2005-07-07 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 (en) * 2008-11-28 2010-06-02 Uhde Fertilizer Technology B.V. Urea granulation process with an acidic scrubbing system and the subsequent integration of ammonium salt into urea granules
EP2253374A1 (en) * 2009-05-20 2010-11-24 Stamicarbon B.V. Process for producing granules
EP2305371A1 (en) * 2009-09-10 2011-04-06 Stamicarbon B.V. Process for producing granules
EP2489429A1 (en) 2011-02-21 2012-08-22 Urea Casale S.A. Fluid bed granulation of urea and related apparatus
EP2497567A1 (en) * 2011-03-10 2012-09-12 Urea Casale S.A. Process and apparatus for production of a granular urea product
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
CN107428680B (zh) * 2015-04-01 2021-01-05 东洋工程株式会社 尿素制造方法
EP3384980A1 (en) * 2017-04-06 2018-10-10 SASOL Germany GmbH Process for production of attrition stable granulated material
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
JP3388743B2 (ja) 2003-03-24
RU2104258C1 (ru) 1998-02-10
EP0653961B1 (en) 1996-06-19
BG99405A (bg) 1995-09-29
AU666404B2 (en) 1996-02-08
JPH09500608A (ja) 1997-01-21
CA2141874C (en) 2003-04-22
EP0653961A1 (en) 1995-05-24
WO1994003267A1 (en) 1994-02-17
GEP19981292B (en) 1998-05-01
AU4835493A (en) 1994-03-03
DE69303284D1 (de) 1996-07-25
RO113007B1 (ro) 1998-03-30
BG61332B1 (en) 1997-06-30
DE69303284T2 (de) 1997-02-06
CA2141874A1 (en) 1994-02-17
US5653781A (en) 1997-08-05
ATE139463T1 (de) 1996-07-15
ES2091037T3 (es) 1996-10-16
UA26359C2 (uk) 1999-08-30
PL307334A1 (en) 1995-05-15
KR100299404B1 (ko) 2002-04-24
NZ256137A (en) 1995-12-21

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