ATE201396T1 - Verfahren zur herstellung von harnstoff - Google Patents
Verfahren zur herstellung von harnstoffInfo
- Publication number
- ATE201396T1 ATE201396T1 AT97937897T AT97937897T ATE201396T1 AT E201396 T1 ATE201396 T1 AT E201396T1 AT 97937897 T AT97937897 T AT 97937897T AT 97937897 T AT97937897 T AT 97937897T AT E201396 T1 ATE201396 T1 AT E201396T1
- Authority
- AT
- Austria
- Prior art keywords
- urea
- synthesis
- gas stream
- melamine
- producing urea
- Prior art date
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title abstract 4
- 239000004202 carbamide Substances 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- 229920000877 Melamine resin Polymers 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 238000003786 synthesis reaction Methods 0.000 abstract 2
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
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)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1003923A NL1003923C2 (nl) | 1996-08-30 | 1996-08-30 | Werkwijze voor de bereiding van ureum. |
| NL1004475A NL1004475C2 (nl) | 1996-11-08 | 1996-11-08 | Werkwijze voor de bereiding van ureum. |
| PCT/NL1997/000493 WO1998008808A1 (en) | 1996-08-30 | 1997-08-29 | Process for the preparation of urea |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE201396T1 true ATE201396T1 (de) | 2001-06-15 |
Family
ID=26642434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT97937897T ATE201396T1 (de) | 1996-08-30 | 1997-08-29 | Verfahren zur herstellung von harnstoff |
Country Status (16)
| Country | Link |
|---|---|
| EP (1) | EP0923541B1 (de) |
| JP (1) | JP2000516949A (de) |
| KR (1) | KR100499250B1 (de) |
| CN (1) | CN1077884C (de) |
| AT (1) | ATE201396T1 (de) |
| AU (1) | AU713191B2 (de) |
| CA (1) | CA2264135C (de) |
| DE (1) | DE69704949T2 (de) |
| ES (1) | ES2158576T3 (de) |
| ID (1) | ID18250A (de) |
| MY (1) | MY129419A (de) |
| NO (1) | NO312291B1 (de) |
| PL (1) | PL331925A1 (de) |
| SA (1) | SA97180416B1 (de) |
| TW (1) | TW385307B (de) |
| WO (1) | WO1998008808A1 (de) |
Families Citing this family (28)
| 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. |
| US7120254B2 (en) | 2000-10-30 | 2006-10-10 | Geocodex Llc | Cryptographic system and method for geolocking and securing digital information |
| 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 |
| 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. |
| NL1021637C2 (nl) * | 2002-07-29 | 2004-01-30 | Dsm Nv | Werkwijze voor het vergroten van de capaciteit van een ureumfabriek. |
| EP1433774A1 (de) * | 2002-12-27 | 2004-06-30 | Koninklijke DSM N.V. | Verfahren zur Reduzierung der Aldehydkonzentration in einer Cyclohexanon- und eine oder mehrere Aldehyd enthaltende Mischung |
| WO2005080321A1 (en) * | 2004-02-20 | 2005-09-01 | Urea Casale S.A. | Integrated process for urea and melamine production |
| US7910531B2 (en) | 2004-06-17 | 2011-03-22 | C2C Technologies Llc | Composition and method for producing colored bubbles |
| EP1752447B1 (de) * | 2005-08-10 | 2010-11-10 | Urea Casale S.A. | Verfahren zur integrierten Herstellung von Harnstoff und Melamin |
| EP1918274A1 (de) * | 2006-11-04 | 2008-05-07 | Urea Casale S.A. | Integriertes Verfahren zur Herstellung von Harnstoff und Melamin |
| 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 |
| DE102009052420C5 (de) * | 2009-11-10 | 2014-05-22 | Lurgi Gmbh | Verfahren zur kontinuierlichen Herstellung von Melamin |
| 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 |
| EA201992623A3 (ru) | 2013-12-17 | 2020-05-31 | Стамикарбон Б.В. | Совмещенное производство карбамида и меламина |
| EP2940006A1 (de) * | 2014-04-28 | 2015-11-04 | Casale Sa | Verfahren und Anlage zur Herstellung von Harnstoff und Melamin |
| EP3053915A1 (de) * | 2015-02-06 | 2016-08-10 | Casale SA | Methode zur verbesserung einer hochdruck-melamin herstellungsanlage |
| HUE053647T2 (hu) | 2015-04-23 | 2021-07-28 | Stamicarbon | Módszer és rendszer a karbamid és a melamin integrált elõállításához |
| EP3398935A1 (de) † | 2017-05-05 | 2018-11-07 | Casale Sa | Verfahren und anlage zur synthese von harnstoff |
| ES2903181T3 (es) * | 2017-10-27 | 2022-03-31 | Stamicarbon | Condensador de carbamato de alta presión |
| CN111344541B (zh) * | 2017-11-16 | 2022-04-22 | 卡萨勒有限公司 | 用于测量尿素合成设备的压力容器中液位的方法和系统 |
| IT201800006795A1 (it) * | 2018-06-29 | 2019-12-29 | Procedimento di conversione diretta di off-gas anidri da impianti melammina in urea | |
| AU2022309103A1 (en) * | 2021-07-09 | 2023-11-02 | Casale Sa | A process and plant for the synthesis of urea and melamine |
| CA3261193A1 (en) * | 2022-07-07 | 2024-01-11 | Stamicarbon B.V. | UREA AND MELAMINE PRODUCTION |
| CA3274505A1 (en) * | 2022-11-22 | 2024-05-30 | Stamicarbon B.V. | COUPLED PRODUCTION OF UREA AND MELAMINE WITH HP CO2 EXTRACTION |
| WO2024188890A1 (en) | 2023-03-10 | 2024-09-19 | Casale Sa | A process and plant for the synthesis of urea and melamine |
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 (de) * | 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 KR KR10-1999-7001628A patent/KR100499250B1/ko not_active Expired - Fee Related
- 1997-08-29 AU AU40347/97A patent/AU713191B2/en not_active Ceased
- 1997-08-29 MY MYPI97004009A patent/MY129419A/en unknown
- 1997-08-29 EP EP97937897A patent/EP0923541B1/de not_active Revoked
- 1997-08-29 PL PL97331925A patent/PL331925A1/xx not_active Application Discontinuation
- 1997-08-29 WO PCT/NL1997/000493 patent/WO1998008808A1/en not_active Ceased
- 1997-08-29 AT AT97937897T patent/ATE201396T1/de not_active IP Right Cessation
- 1997-08-29 CA CA002264135A patent/CA2264135C/en not_active Expired - Fee Related
- 1997-08-29 CN CN97198961A patent/CN1077884C/zh not_active Expired - Fee Related
- 1997-08-29 JP JP10511506A patent/JP2000516949A/ja active Pending
- 1997-08-29 ES ES97937897T patent/ES2158576T3/es not_active Expired - Lifetime
- 1997-08-29 DE DE69704949T patent/DE69704949T2/de not_active Revoked
- 1997-09-21 SA SA97180416A patent/SA97180416B1/ar unknown
-
1999
- 1999-02-25 NO NO19990897A patent/NO312291B1/no not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR100499250B1 (ko) | 2005-07-07 |
| PL331925A1 (en) | 1999-08-16 |
| DE69704949T2 (de) | 2001-10-31 |
| KR20000035903A (ko) | 2000-06-26 |
| WO1998008808A1 (en) | 1998-03-05 |
| NO990897L (no) | 1999-04-20 |
| EP0923541A1 (de) | 1999-06-23 |
| EP0923541B1 (de) | 2001-05-23 |
| JP2000516949A (ja) | 2000-12-19 |
| NO312291B1 (no) | 2002-04-22 |
| TW385307B (en) | 2000-03-21 |
| CA2264135A1 (en) | 1998-03-05 |
| AU713191B2 (en) | 1999-11-25 |
| ID18250A (id) | 1998-03-19 |
| NO990897D0 (no) | 1999-02-25 |
| CN1077884C (zh) | 2002-01-16 |
| AU4034797A (en) | 1998-03-19 |
| SA97180416B1 (ar) | 2006-04-04 |
| DE69704949D1 (de) | 2001-06-28 |
| ES2158576T3 (es) | 2001-09-01 |
| CA2264135C (en) | 2007-04-24 |
| CN1234022A (zh) | 1999-11-03 |
| MY129419A (en) | 2007-03-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| UEP | Publication of translation of european patent specification | ||
| RZN | Patent revoked |