BG61332B1 - Method for the preparation of granular urea - Google Patents
Method for the preparation of granular urea Download PDFInfo
- Publication number
- BG61332B1 BG61332B1 BG99405A BG9940595A BG61332B1 BG 61332 B1 BG61332 B1 BG 61332B1 BG 99405 A BG99405 A BG 99405A BG 9940595 A BG9940595 A BG 9940595A BG 61332 B1 BG61332 B1 BG 61332B1
- Authority
- BG
- Bulgaria
- Prior art keywords
- urea
- solution
- granules
- fluidized bed
- additive
- Prior art date
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)
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 |
---|---|
BG99405A BG99405A (bg) | 1995-09-29 |
BG61332B1 true BG61332B1 (en) | 1997-06-30 |
Family
ID=11004968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BG99405A BG61332B1 (en) | 1992-08-07 | 1995-02-07 | Method for the preparation of granular urea |
Country Status (17)
Country | Link |
---|---|
US (1) | US5653781A (ru) |
EP (1) | EP0653961B1 (ru) |
JP (1) | JP3388743B2 (ru) |
KR (1) | KR100299404B1 (ru) |
AT (1) | ATE139463T1 (ru) |
AU (1) | AU666404B2 (ru) |
BG (1) | BG61332B1 (ru) |
CA (1) | CA2141874C (ru) |
DE (1) | DE69303284T2 (ru) |
ES (1) | ES2091037T3 (ru) |
GE (1) | GEP19981292B (ru) |
NZ (1) | NZ256137A (ru) |
PL (1) | PL307334A1 (ru) |
RO (1) | RO113007B1 (ru) |
RU (1) | RU2104258C1 (ru) |
UA (1) | UA26359C2 (ru) |
WO (1) | WO1994003267A1 (ru) |
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 |
PT1475350E (pt) * | 2003-05-07 | 2005-09-30 | Degussa | Granulado de percarbonato de sodio revestido com estabilidade no armazenamento melhorada |
NL1023941C2 (nl) * | 2003-07-17 | 2005-01-18 | Dsm Ip Assets Bv | Werkwijze voor het bereiden van ureum granules. |
EP1682255B1 (en) * | 2003-11-10 | 2016-07-27 | Stamicarbon 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 |
CA2549755C (en) * | 2003-12-23 | 2012-05-15 | 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 |
US10519103B2 (en) | 2015-04-01 | 2019-12-31 | Toyo Engineering Corporation | 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 |
---|---|---|---|---|
GB906120A (en) * | 1957-10-30 | 1962-09-19 | Montedison Spa | Improvements relating to concentrated urea-formaldehyde 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 |
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. |
-
1993
- 1993-08-05 RO RO95-00196A patent/RO113007B1/ro unknown
- 1993-08-05 GE GEAP19932405A patent/GEP19981292B/en unknown
- 1993-08-05 JP JP50519894A patent/JP3388743B2/ja not_active Expired - Lifetime
- 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 US US08/381,851 patent/US5653781A/en not_active Expired - Lifetime
- 1993-08-05 ES ES93921123T patent/ES2091037T3/es not_active Expired - Lifetime
- 1993-08-05 UA UA95028114A patent/UA26359C2/uk unknown
- 1993-08-05 DE DE69303284T patent/DE69303284T2/de 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 KR KR1019950700438A patent/KR100299404B1/ko not_active IP Right Cessation
- 1993-08-05 EP EP93921123A patent/EP0653961B1/en not_active Expired - Lifetime
- 1993-08-05 RU RU95106645/25A patent/RU2104258C1/ru active
- 1993-08-05 NZ NZ256137A patent/NZ256137A/en not_active IP Right Cessation
- 1993-08-05 WO PCT/NL1993/000167 patent/WO1994003267A1/en active IP Right Grant
-
1995
- 1995-02-07 BG BG99405A patent/BG61332B1/bg unknown
Also Published As
Publication number | Publication date |
---|---|
AU4835493A (en) | 1994-03-03 |
DE69303284D1 (de) | 1996-07-25 |
ES2091037T3 (es) | 1996-10-16 |
CA2141874A1 (en) | 1994-02-17 |
WO1994003267A1 (en) | 1994-02-17 |
JP3388743B2 (ja) | 2003-03-24 |
RU2104258C1 (ru) | 1998-02-10 |
AU666404B2 (en) | 1996-02-08 |
PL307334A1 (en) | 1995-05-15 |
JPH09500608A (ja) | 1997-01-21 |
DE69303284T2 (de) | 1997-02-06 |
RO113007B1 (ro) | 1998-03-30 |
KR100299404B1 (ko) | 2002-04-24 |
BG99405A (bg) | 1995-09-29 |
EP0653961A1 (en) | 1995-05-24 |
GEP19981292B (en) | 1998-05-01 |
CA2141874C (en) | 2003-04-22 |
ATE139463T1 (de) | 1996-07-15 |
US5653781A (en) | 1997-08-05 |
EP0653961B1 (en) | 1996-06-19 |
NZ256137A (en) | 1995-12-21 |
UA26359C2 (uk) | 1999-08-30 |
KR950702864A (ko) | 1995-08-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BG61332B1 (en) | Method for the preparation of granular urea | |
US6179893B1 (en) | Process for generation of fertilizer granules containing urea and ammonium sulfate | |
US4701353A (en) | Process for the preparation of granules | |
US4219589A (en) | Process for urea granulation | |
FI65713B (fi) | Foerfarande foer framstaellning av ureagranuler genom att spraya en vattenhaltig urealoesning pao fluidiserade ureakaernor | |
US4217127A (en) | Process for producing urea granules | |
JP5065271B2 (ja) | 尿素ペレットを製造するための方法 | |
US4619843A (en) | Process for the preparation of granules | |
US3477842A (en) | Manufacture of free flowing fertilizer product by coating granules with urea-formaldehyde from an alkaline solution | |
KR20190071762A (ko) | 황산암모늄 함유 과립, 그 제조 방법 및 시스템 | |
PL126883B1 (en) | Method of making urea pellets or nubbles | |
CN100421776C (zh) | 颗粒的制备方法 | |
EA009533B1 (ru) | Способ приготовления гранул мочевины | |
US10512886B2 (en) | Granulating ammonium sulfate | |
JPH09169717A (ja) | 大粒尿素製造法 | |
JPS6058193B2 (ja) | 尿素の流動造粒方法 | |
RU2093766C1 (ru) | Способ сушки раствора хлористого кальция с получением гранулированного продукта и установка для его получения | |
CN116547254A (zh) | 尿素硫酸铵制粒设备及方法 | |
US3704102A (en) | Production of caustic soda prills | |
Meessen et al. | Stamicarbon’s Granulation Technology: Diamonds, Pearls and Stamicarbon Granules |