ES2091037T3 - Procedimiento para la produccion de granulos de urea. - Google Patents
Procedimiento para la produccion de granulos de urea.Info
- Publication number
- ES2091037T3 ES2091037T3 ES93921123T ES93921123T ES2091037T3 ES 2091037 T3 ES2091037 T3 ES 2091037T3 ES 93921123 T ES93921123 T ES 93921123T ES 93921123 T ES93921123 T ES 93921123T ES 2091037 T3 ES2091037 T3 ES 2091037T3
- Authority
- ES
- Spain
- 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
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)
- Steroid Compounds (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
LA INVENCION SE REFIERE A UN PROCESO PARA LA PRODUCCION DE GRANULOS DE UREA A PARTIR DE UNA SOLUCION O UN MATERIAL FUNDIDO DE UREA ROCIANDO LA SOLUCION O EL MATERIAL FUNDIDO DE UREA, QUE TAMBIEN CONTIENE ADITIVO DE GRANULACION FORMALDEHIDO, METILOLUREA, PRECONDENSADOS DE UREA-FORMALDEHIDO O HEXAMETILENOTETRAMINO EN LA FORMA DE GOTITAS MUY FINAS EN UN LECHO FLUIDO DE PARTICULAS DE UREA, EN DICHO PROCESO EL ADITIVO DE GRANULACION SE AÑADE ANTES DE LA GRANULACION EN UNA ETAPA TAL QUE LA MEZCLA DE DICHO ADITIVO DE GRANULACION Y LA SOLUCION O EL MATERIAL FUNDIDO DE UREA TENGA UN TIEMPO DE CONTACTO DE AL MENOS 20 SEGUNDOS, PERO NO MAYOR DE 20 MINUTOS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ID924539 | 1992-08-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2091037T3 true ES2091037T3 (es) | 1996-10-16 |
Family
ID=11004968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES93921123T Expired - Lifetime ES2091037T3 (es) | 1992-08-07 | 1993-08-05 | Procedimiento para la produccion de granulos de urea. |
Country Status (17)
Country | Link |
---|---|
US (1) | US5653781A (es) |
EP (1) | EP0653961B1 (es) |
JP (1) | JP3388743B2 (es) |
KR (1) | KR100299404B1 (es) |
AT (1) | ATE139463T1 (es) |
AU (1) | AU666404B2 (es) |
BG (1) | BG61332B1 (es) |
CA (1) | CA2141874C (es) |
DE (1) | DE69303284T2 (es) |
ES (1) | ES2091037T3 (es) |
GE (1) | GEP19981292B (es) |
NZ (1) | NZ256137A (es) |
PL (1) | PL307334A1 (es) |
RO (1) | RO113007B1 (es) |
RU (1) | RU2104258C1 (es) |
UA (1) | UA26359C2 (es) |
WO (1) | WO1994003267A1 (es) |
Families Citing this family (32)
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 |
ATE299471T1 (de) * | 2003-05-07 | 2005-07-15 | 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 |
EP1694613A2 (en) * | 2003-12-18 | 2006-08-30 | Georgia-Pacific Resins, Inc. | Extended-release nitrogen-containing granular fertilizer |
CN1972754B (zh) * | 2003-12-23 | 2010-11-03 | 亚拉国际有限公司 | 喷雾装置和用于流化床粒化的方法 |
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 |
GB2555726B (en) * | 2015-04-01 | 2020-05-13 | Toyo Engineering Corp | Urea production method |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3067177A (en) * | 1957-10-30 | 1962-12-04 | Montedison Spa | Process for producing concentrated urea-formaldehyde solutions by absorbing gaseous formaldehyde in aqueous urea solutions |
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 |
NL8303000A (nl) * | 1983-08-27 | 1985-03-18 | Unie Van Kunstmestfab Bv | Werkwijze voor het bereiden van granules. |
NL8302999A (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. |
-
1993
- 1993-08-05 DE DE69303284T patent/DE69303284T2/de not_active Expired - Lifetime
- 1993-08-05 ES ES93921123T patent/ES2091037T3/es not_active Expired - Lifetime
- 1993-08-05 EP EP93921123A patent/EP0653961B1/en not_active Expired - Lifetime
- 1993-08-05 AT AT93921123T patent/ATE139463T1/de active
- 1993-08-05 PL PL93307334A patent/PL307334A1/xx unknown
- 1993-08-05 RO RO95-00196A patent/RO113007B1/ro unknown
- 1993-08-05 KR KR1019950700438A patent/KR100299404B1/ko not_active IP Right Cessation
- 1993-08-05 CA CA002141874A patent/CA2141874C/en not_active Expired - Lifetime
- 1993-08-05 AU AU48354/93A patent/AU666404B2/en not_active Expired
- 1993-08-05 NZ NZ256137A patent/NZ256137A/en not_active IP Right Cessation
- 1993-08-05 RU RU95106645/25A patent/RU2104258C1/ru active
- 1993-08-05 UA UA95028114A patent/UA26359C2/uk unknown
- 1993-08-05 GE GEAP19932405A patent/GEP19981292B/en unknown
- 1993-08-05 WO PCT/NL1993/000167 patent/WO1994003267A1/en active IP Right Grant
- 1993-08-05 US US08/381,851 patent/US5653781A/en not_active Expired - Lifetime
- 1993-08-05 JP JP50519894A patent/JP3388743B2/ja not_active Expired - Lifetime
-
1995
- 1995-02-07 BG BG99405A patent/BG61332B1/bg unknown
Also Published As
Publication number | Publication date |
---|---|
BG99405A (bg) | 1995-09-29 |
CA2141874C (en) | 2003-04-22 |
PL307334A1 (en) | 1995-05-15 |
EP0653961A1 (en) | 1995-05-24 |
GEP19981292B (en) | 1998-05-01 |
UA26359C2 (uk) | 1999-08-30 |
ATE139463T1 (de) | 1996-07-15 |
KR100299404B1 (ko) | 2002-04-24 |
KR950702864A (ko) | 1995-08-23 |
AU666404B2 (en) | 1996-02-08 |
JP3388743B2 (ja) | 2003-03-24 |
RU2104258C1 (ru) | 1998-02-10 |
WO1994003267A1 (en) | 1994-02-17 |
DE69303284D1 (de) | 1996-07-25 |
BG61332B1 (en) | 1997-06-30 |
EP0653961B1 (en) | 1996-06-19 |
RO113007B1 (ro) | 1998-03-30 |
AU4835493A (en) | 1994-03-03 |
US5653781A (en) | 1997-08-05 |
NZ256137A (en) | 1995-12-21 |
CA2141874A1 (en) | 1994-02-17 |
JPH09500608A (ja) | 1997-01-21 |
DE69303284T2 (de) | 1997-02-06 |
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