CN1234022A - 尿素制备方法 - Google Patents
尿素制备方法 Download PDFInfo
- Publication number
- CN1234022A CN1234022A CN97198961A CN97198961A CN1234022A CN 1234022 A CN1234022 A CN 1234022A CN 97198961 A CN97198961 A CN 97198961A CN 97198961 A CN97198961 A CN 97198961A CN 1234022 A CN1234022 A CN 1234022A
- Authority
- CN
- China
- Prior art keywords
- urea
- high pressure
- extractor
- gas stream
- melamine
- 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.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
- C07C273/12—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds combined with the synthesis of melamine
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/54—Three nitrogen atoms
- C07D251/56—Preparation of melamine
- C07D251/60—Preparation of melamine from urea or from carbon dioxide and ammonia
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
Description
Claims (16)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1003923A NL1003923C2 (nl) | 1996-08-30 | 1996-08-30 | Werkwijze voor de bereiding van ureum. |
NL1003923 | 1996-08-30 | ||
NL1004475A NL1004475C2 (nl) | 1996-11-08 | 1996-11-08 | Werkwijze voor de bereiding van ureum. |
NL1004475 | 1996-11-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1234022A true CN1234022A (zh) | 1999-11-03 |
CN1077884C CN1077884C (zh) | 2002-01-16 |
Family
ID=26642434
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN97198961A Expired - Fee Related CN1077884C (zh) | 1996-08-30 | 1997-08-29 | 尿素制备方法 |
Country Status (16)
Country | Link |
---|---|
EP (1) | EP0923541B1 (zh) |
JP (1) | JP2000516949A (zh) |
KR (1) | KR100499250B1 (zh) |
CN (1) | CN1077884C (zh) |
AT (1) | ATE201396T1 (zh) |
AU (1) | AU713191B2 (zh) |
CA (1) | CA2264135C (zh) |
DE (1) | DE69704949T2 (zh) |
ES (1) | ES2158576T3 (zh) |
ID (1) | ID18250A (zh) |
MY (1) | MY129419A (zh) |
NO (1) | NO312291B1 (zh) |
PL (1) | PL331925A1 (zh) |
SA (1) | SA97180416B1 (zh) |
TW (1) | TW385307B (zh) |
WO (1) | WO1998008808A1 (zh) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1315802C (zh) * | 2002-07-29 | 2007-05-16 | 帝斯曼知识产权资产管理有限公司 | 用于提高尿素工厂生产能力的方法 |
CN1902163B (zh) * | 2004-02-20 | 2010-05-26 | 乌里阿·卡萨勒有限公司 | 尿素和三聚氰胺生产的集成工艺 |
CN101607168B (zh) * | 2009-07-17 | 2011-05-04 | 聊城市鲁西化工工程设计有限责任公司 | 三聚氰胺尾气处理工艺及设备 |
CN101774950B (zh) * | 2009-12-25 | 2013-04-17 | 鲁西化工集团股份有限公司 | 一种利用三聚氰胺尾气联产尿素的工艺 |
CN105829289A (zh) * | 2013-12-17 | 2016-08-03 | 斯塔米卡邦有限公司 | 尿素和三聚氰胺的一体化生产 |
CN107207423A (zh) * | 2015-02-06 | 2017-09-26 | 卡萨勒有限公司 | 改造高压三聚氰胺设备的方法 |
CN107531618A (zh) * | 2015-04-23 | 2018-01-02 | 斯塔米卡邦有限公司 | 用于一体化生产尿素和三聚氰胺的方法和系统 |
CN112703181A (zh) * | 2018-06-29 | 2021-04-23 | 欧洲技术三聚氰氨股份公司 | 将来自三聚氰胺合成设备的无水废气流转化成尿素的方法 |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6380385B1 (en) | 1995-12-07 | 2002-04-30 | Agrolinz Melanin Gmbh | Process for the preparation of pure melamine |
AT411830B (de) | 1998-12-03 | 2004-06-25 | Agrolinz Melamin Gmbh | Verfahren zur herstellung von harnstoff unter einbindung der melamin-offgase in eine harnstoffanlage |
NL1014280C2 (nl) * | 2000-02-03 | 2001-08-06 | Dsm Nv | Werkwijze voor de bereiding van melamine uit ureum. |
US8472627B2 (en) | 2000-10-30 | 2013-06-25 | Geocodex Llc | System and method for delivering encrypted information in a communication network using location indentity and key tables |
US7120254B2 (en) | 2000-10-30 | 2006-10-10 | Geocodex Llc | Cryptographic system and method for geolocking and securing digital information |
AT409627B (de) * | 2000-12-27 | 2002-09-25 | Agrolinz Melamin Gmbh | Verfahren zur reinigung von offgasen aus einer melaminanlage |
NL1021176C2 (nl) * | 2002-07-29 | 2004-01-30 | Dsm Nv | Werkwijze voor het vergroten van de capaciteit van een ureumfabriek. |
EP1433774A1 (en) * | 2002-12-27 | 2004-06-30 | Koninklijke DSM N.V. | Process for reducing the aldehyde concentration in a mixture comprising cyclohexanone and one or more aldehydes |
US7910531B2 (en) | 2004-06-17 | 2011-03-22 | C2C Technologies Llc | Composition and method for producing colored bubbles |
DE602005024680D1 (de) * | 2005-08-10 | 2010-12-23 | Urea Casale Sa | Verfahren zur integrierten Herstellung von Harnstoff und Melamin |
EP1918274A1 (en) * | 2006-11-04 | 2008-05-07 | Urea Casale S.A. | Integrated process for urea and melamine production |
DE102009052420C5 (de) * | 2009-11-10 | 2014-05-22 | Lurgi Gmbh | Verfahren zur kontinuierlichen Herstellung von Melamin |
EP2940006A1 (en) * | 2014-04-28 | 2015-11-04 | Casale Sa | Process and plant for the synthesis of urea and melamine |
CN113476880B (zh) * | 2017-10-27 | 2023-01-24 | 斯塔米卡邦有限公司 | 高压氨基甲酸盐冷凝器 |
CA3077632A1 (en) * | 2017-11-16 | 2019-05-23 | Casale Sa | A method and system for measuring a liquid level in a pressure vessel of a urea synthesis plant |
WO2024112199A1 (en) * | 2022-11-22 | 2024-05-30 | Stamicarbon B.V. | Coupled urea melamine production with hp co2 stripping |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1148767A (en) * | 1965-10-25 | 1969-04-16 | Nissan Chemical Ind Ltd | Process for the production of melamine |
US3503970A (en) * | 1967-07-19 | 1970-03-31 | Mitsui Toatsu Chemicals | Integrated process for producing urea and melamine |
DE1770969C3 (de) * | 1968-07-25 | 1978-08-24 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Rückführung der Abgase der Melaminsynthese in die Hamstoffsynthese |
JPS5022020B1 (zh) * | 1969-11-01 | 1975-07-28 | ||
US4433146A (en) * | 1982-04-07 | 1984-02-21 | Stamicarbon B.V. | Process for the preparation of melamine |
-
1997
- 1997-08-21 TW TW086111813A patent/TW385307B/zh not_active IP Right Cessation
- 1997-08-28 ID IDP972996A patent/ID18250A/id unknown
- 1997-08-29 MY MYPI97004009A patent/MY129419A/en unknown
- 1997-08-29 PL PL97331925A patent/PL331925A1/xx not_active Application Discontinuation
- 1997-08-29 JP JP10511506A patent/JP2000516949A/ja active Pending
- 1997-08-29 AT AT97937897T patent/ATE201396T1/de not_active IP Right Cessation
- 1997-08-29 CN CN97198961A patent/CN1077884C/zh not_active Expired - Fee Related
- 1997-08-29 CA CA002264135A patent/CA2264135C/en not_active Expired - Fee Related
- 1997-08-29 ES ES97937897T patent/ES2158576T3/es not_active Expired - Lifetime
- 1997-08-29 AU AU40347/97A patent/AU713191B2/en not_active Ceased
- 1997-08-29 DE DE69704949T patent/DE69704949T2/de not_active Revoked
- 1997-08-29 WO PCT/NL1997/000493 patent/WO1998008808A1/en not_active Application Discontinuation
- 1997-08-29 EP EP97937897A patent/EP0923541B1/en not_active Revoked
- 1997-08-29 KR KR10-1999-7001628A patent/KR100499250B1/ko not_active IP Right Cessation
- 1997-09-21 SA SA97180416A patent/SA97180416B1/ar unknown
-
1999
- 1999-02-25 NO NO19990897A patent/NO312291B1/no not_active IP Right Cessation
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1315802C (zh) * | 2002-07-29 | 2007-05-16 | 帝斯曼知识产权资产管理有限公司 | 用于提高尿素工厂生产能力的方法 |
CN1902163B (zh) * | 2004-02-20 | 2010-05-26 | 乌里阿·卡萨勒有限公司 | 尿素和三聚氰胺生产的集成工艺 |
CN101607168B (zh) * | 2009-07-17 | 2011-05-04 | 聊城市鲁西化工工程设计有限责任公司 | 三聚氰胺尾气处理工艺及设备 |
CN101774950B (zh) * | 2009-12-25 | 2013-04-17 | 鲁西化工集团股份有限公司 | 一种利用三聚氰胺尾气联产尿素的工艺 |
CN105829289A (zh) * | 2013-12-17 | 2016-08-03 | 斯塔米卡邦有限公司 | 尿素和三聚氰胺的一体化生产 |
CN105829289B (zh) * | 2013-12-17 | 2019-07-26 | 斯塔米卡邦有限公司 | 尿素和三聚氰胺的一体化生产 |
CN107207423A (zh) * | 2015-02-06 | 2017-09-26 | 卡萨勒有限公司 | 改造高压三聚氰胺设备的方法 |
CN107531618A (zh) * | 2015-04-23 | 2018-01-02 | 斯塔米卡邦有限公司 | 用于一体化生产尿素和三聚氰胺的方法和系统 |
CN107531618B (zh) * | 2015-04-23 | 2021-02-26 | 斯塔米卡邦有限公司 | 用于一体化生产尿素和三聚氰胺的方法和系统 |
CN112703181A (zh) * | 2018-06-29 | 2021-04-23 | 欧洲技术三聚氰氨股份公司 | 将来自三聚氰胺合成设备的无水废气流转化成尿素的方法 |
Also Published As
Publication number | Publication date |
---|---|
DE69704949T2 (de) | 2001-10-31 |
WO1998008808A1 (en) | 1998-03-05 |
JP2000516949A (ja) | 2000-12-19 |
AU4034797A (en) | 1998-03-19 |
ID18250A (id) | 1998-03-19 |
CN1077884C (zh) | 2002-01-16 |
CA2264135C (en) | 2007-04-24 |
TW385307B (en) | 2000-03-21 |
EP0923541B1 (en) | 2001-05-23 |
ES2158576T3 (es) | 2001-09-01 |
MY129419A (en) | 2007-03-30 |
NO990897D0 (no) | 1999-02-25 |
NO990897L (no) | 1999-04-20 |
DE69704949D1 (de) | 2001-06-28 |
PL331925A1 (en) | 1999-08-16 |
KR100499250B1 (ko) | 2005-07-07 |
KR20000035903A (ko) | 2000-06-26 |
NO312291B1 (no) | 2002-04-22 |
SA97180416B1 (ar) | 2006-04-04 |
AU713191B2 (en) | 1999-11-25 |
EP0923541A1 (en) | 1999-06-23 |
ATE201396T1 (de) | 2001-06-15 |
CA2264135A1 (en) | 1998-03-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: DSMIP PROPERTY CO., LTD. Free format text: FORMER OWNER: DSM N. V. Effective date: 20040618 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20040618 Address after: Holland Heerlen Patentee after: DSMIP Property N. V. Address before: Holland Heerlen Patentee before: DSM N. V. |
|
ASS | Succession or assignment of patent right |
Owner name: STAMICARBON CO., LTD. Free format text: FORMER OWNER: DSM IP PROPERTY CO., LTD. Effective date: 20101117 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: HEERLEN, HOLLAND TO: SITTARD, HOLLAND |
|
TR01 | Transfer of patent right |
Effective date of registration: 20101117 Address after: Holland Sittard Patentee after: DSM IP Assets BV Address before: Holland Heerlen Patentee before: DSM IP Property Limited |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020116 Termination date: 20160829 |
|
CF01 | Termination of patent right due to non-payment of annual fee |