NO312291B1 - Fremgangsmåte ved fremstilling av urea, et ureastrippeanlegg for fremstilling av urea og et apparat for syntese av urea ogmelamin - Google Patents
Fremgangsmåte ved fremstilling av urea, et ureastrippeanlegg for fremstilling av urea og et apparat for syntese av urea ogmelamin Download PDFInfo
- Publication number
- NO312291B1 NO312291B1 NO19990897A NO990897A NO312291B1 NO 312291 B1 NO312291 B1 NO 312291B1 NO 19990897 A NO19990897 A NO 19990897A NO 990897 A NO990897 A NO 990897A NO 312291 B1 NO312291 B1 NO 312291B1
- Authority
- NO
- Norway
- Prior art keywords
- urea
- pressure
- melamine
- stripper
- reactor
- Prior art date
Links
- 239000004202 carbamide Substances 0.000 title claims abstract description 185
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 183
- 229920000877 Melamine resin Polymers 0.000 title claims abstract description 118
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 title claims abstract description 117
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 56
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 53
- 238000004519 manufacturing process Methods 0.000 title claims description 22
- 238000002360 preparation method Methods 0.000 title abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 126
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 88
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 60
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 46
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 42
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims description 37
- 239000000843 powder Substances 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 3
- 235000013877 carbamide Nutrition 0.000 description 159
- 241000196324 Embryophyta Species 0.000 description 74
- 239000007789 gas Substances 0.000 description 69
- 239000007788 liquid Substances 0.000 description 26
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 description 13
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 12
- 239000000047 product Substances 0.000 description 11
- 239000000203 mixture Substances 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000009833 condensation Methods 0.000 description 7
- 230000005494 condensation Effects 0.000 description 7
- 238000000354 decomposition reaction Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 230000035800 maturation Effects 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- YZEZMSPGIPTEBA-UHFFFAOYSA-N 2-n-(4,6-diamino-1,3,5-triazin-2-yl)-1,3,5-triazine-2,4,6-triamine Chemical compound NC1=NC(N)=NC(NC=2N=C(N)N=C(N)N=2)=N1 YZEZMSPGIPTEBA-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 150000003672 ureas Chemical class 0.000 description 2
- 241000219112 Cucumis Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- OWIKHYCFFJSOEH-UHFFFAOYSA-N Isocyanic acid Chemical compound N=C=O OWIKHYCFFJSOEH-UHFFFAOYSA-N 0.000 description 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-N anhydrous cyanic acid Natural products OC#N XLJMAIOERFSOGZ-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- YSRVJVDFHZYRPA-UHFFFAOYSA-N melem Chemical compound NC1=NC(N23)=NC(N)=NC2=NC(N)=NC3=N1 YSRVJVDFHZYRPA-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 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 (fr) | 1996-08-30 | 1997-08-29 | Procede de preparation d'uree |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO990897D0 NO990897D0 (no) | 1999-02-25 |
| NO990897L NO990897L (no) | 1999-04-20 |
| NO312291B1 true NO312291B1 (no) | 2002-04-22 |
Family
ID=26642434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO19990897A NO312291B1 (no) | 1996-08-30 | 1999-02-25 | Fremgangsmåte ved fremstilling av urea, et ureastrippeanlegg for fremstilling av urea og et apparat for syntese av urea ogmelamin |
Country Status (16)
| Country | Link |
|---|---|
| EP (1) | EP0923541B1 (fr) |
| JP (1) | JP2000516949A (fr) |
| KR (1) | KR100499250B1 (fr) |
| CN (1) | CN1077884C (fr) |
| AT (1) | ATE201396T1 (fr) |
| AU (1) | AU713191B2 (fr) |
| CA (1) | CA2264135C (fr) |
| DE (1) | DE69704949T2 (fr) |
| ES (1) | ES2158576T3 (fr) |
| ID (1) | ID18250A (fr) |
| MY (1) | MY129419A (fr) |
| NO (1) | NO312291B1 (fr) |
| PL (1) | PL331925A1 (fr) |
| SA (1) | SA97180416B1 (fr) |
| TW (1) | TW385307B (fr) |
| WO (1) | WO1998008808A1 (fr) |
Families Citing this family (24)
| 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. |
| NL1021637C2 (nl) * | 2002-07-29 | 2004-01-30 | Dsm Nv | Werkwijze voor het vergroten van de capaciteit van een ureumfabriek. |
| EP1433774A1 (fr) * | 2002-12-27 | 2004-06-30 | Koninklijke DSM N.V. | Procédé pour la réduction de la concentration d' aldéhyde dans un mélange comprenant de la cyclohexanone et un ou plusieurs aldéhydes |
| EP1716111B2 (fr) * | 2004-02-20 | 2022-06-08 | Casale Sa | Procede integre de production d'uree et de melamine |
| 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 (fr) * | 2006-11-04 | 2008-05-07 | Urea Casale S.A. | Procédé de préparation integrée de l'urée et de la mélamine |
| 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 |
| EA034482B1 (ru) * | 2013-12-17 | 2020-02-12 | Стамикарбон Б.В. | Совмещенное производство карбамида и меламина |
| EP2940006A1 (fr) * | 2014-04-28 | 2015-11-04 | Casale Sa | Procédé et installation pour la synthèse de l'urée et la mélamine |
| EP3053915A1 (fr) * | 2015-02-06 | 2016-08-10 | Casale SA | Procédé pour moderniser d'un réacteur sous haute pression pour la production de mélamine |
| WO2016171562A1 (fr) * | 2015-04-23 | 2016-10-27 | Stamicarbon B.V. | Procédé et système pour la production intégrée d'urée et de mélamine |
| 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 (fr) * | 2017-11-16 | 2019-05-23 | Casale Sa | Procede et systeme de mesure d'un niveau de liquide dans un recipient sous pression d'une installation de synthese d'uree |
| IT201800006795A1 (it) * | 2018-06-29 | 2019-12-29 | Procedimento di conversione diretta di off-gas anidri da impianti melammina in urea | |
| WO2024112199A1 (fr) * | 2022-11-22 | 2024-05-30 | Stamicarbon B.V. | Production couplée d'urée et de mélamine avec extraction de co2 hp |
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 (fr) * | 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/fr 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/fr not_active Application Discontinuation
- 1997-08-29 EP EP97937897A patent/EP0923541B1/fr 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
Also Published As
| Publication number | Publication date |
|---|---|
| DE69704949T2 (de) | 2001-10-31 |
| WO1998008808A1 (fr) | 1998-03-05 |
| JP2000516949A (ja) | 2000-12-19 |
| AU4034797A (en) | 1998-03-19 |
| ID18250A (id) | 1998-03-19 |
| CN1077884C (zh) | 2002-01-16 |
| CA2264135C (fr) | 2007-04-24 |
| TW385307B (en) | 2000-03-21 |
| EP0923541B1 (fr) | 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 |
| SA97180416B1 (ar) | 2006-04-04 |
| AU713191B2 (en) | 1999-11-25 |
| EP0923541A1 (fr) | 1999-06-23 |
| ATE201396T1 (de) | 2001-06-15 |
| CN1234022A (zh) | 1999-11-03 |
| CA2264135A1 (fr) | 1998-03-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM1K | Lapsed by not paying the annual fees |