NO20023621L - Fremgangsmåte ved fremstilling av melamin fra urea - Google Patents

Fremgangsmåte ved fremstilling av melamin fra urea

Info

Publication number
NO20023621L
NO20023621L NO20023621A NO20023621A NO20023621L NO 20023621 L NO20023621 L NO 20023621L NO 20023621 A NO20023621 A NO 20023621A NO 20023621 A NO20023621 A NO 20023621A NO 20023621 L NO20023621 L NO 20023621L
Authority
NO
Norway
Prior art keywords
urea
melamine
preparation
temperature
contacted
Prior art date
Application number
NO20023621A
Other languages
English (en)
Other versions
NO323864B1 (no
NO20023621D0 (no
Inventor
Nora Anna De Wit
Original Assignee
Dsm Nv
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dsm Nv filed Critical Dsm Nv
Publication of NO20023621L publication Critical patent/NO20023621L/no
Publication of NO20023621D0 publication Critical patent/NO20023621D0/no
Publication of NO323864B1 publication Critical patent/NO323864B1/no

Links

Classifications

    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Catalysts (AREA)

Abstract

Fremgangsmåte ved fremstilling av melamin fra urea ved høy temperatur og ved nærvær av en katalysator, hvor en gassformig produktstrøm blir dannet og som blir satt i kontakt med et flytende kjølemedium i en avkjølingssone og hvor temperaturen i skrubbeseksjonen er senket ved å anvende et ekstra kjøletrinn.
NO20023621A 2000-02-03 2002-07-30 Fremgangsmate ved fremstilling av melamin fra urea NO323864B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1014280A NL1014280C2 (nl) 2000-02-03 2000-02-03 Werkwijze voor de bereiding van melamine uit ureum.
PCT/NL2001/000047 WO2001057000A1 (en) 2000-02-03 2001-01-24 Process for preparing melamine from urea

Publications (3)

Publication Number Publication Date
NO20023621L true NO20023621L (no) 2002-07-30
NO20023621D0 NO20023621D0 (no) 2002-07-30
NO323864B1 NO323864B1 (no) 2007-07-16

Family

ID=19770741

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20023621A NO323864B1 (no) 2000-02-03 2002-07-30 Fremgangsmate ved fremstilling av melamin fra urea

Country Status (18)

Country Link
US (1) US6617455B2 (no)
EP (1) EP1252149B1 (no)
JP (1) JP2003521540A (no)
KR (1) KR100703548B1 (no)
CN (1) CN1187344C (no)
AT (1) ATE296813T1 (no)
AU (2) AU2001234240B2 (no)
CA (1) CA2398989A1 (no)
DE (1) DE60111185T2 (no)
EA (1) EA005130B1 (no)
ES (1) ES2241790T3 (no)
MX (1) MXPA02007550A (no)
NL (1) NL1014280C2 (no)
NO (1) NO323864B1 (no)
PL (1) PL356323A1 (no)
RO (1) RO121776B1 (no)
TW (1) TW555750B (no)
WO (1) WO2001057000A1 (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2386536A1 (en) * 2010-05-11 2011-11-16 Lonza Ltd. A process for the hydrogenation of ketoesters

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8204979A (nl) * 1982-12-24 1984-07-16 Unie Van Kunstmestfab Bv Werkwijze voor het bepalen en regelen van de samenstelling van waterige oplossingen van nh3 en co2.
US5384404A (en) * 1993-11-05 1995-01-24 Lee; Jing M. Process for manufacturing melamine from urea
TW385307B (en) * 1996-08-30 2000-03-21 Dsm Nv Process for the preparation of urea
JP3987607B2 (ja) * 1996-10-07 2007-10-10 東洋エンジニアリング株式会社 改良された尿素合成方法および装置
NL1005118C2 (nl) * 1997-01-29 1998-07-30 Dsm Nv Werkwijze voor de bereiding van ureum.

Also Published As

Publication number Publication date
NO323864B1 (no) 2007-07-16
CN1187344C (zh) 2005-02-02
ES2241790T3 (es) 2005-11-01
EA005130B1 (ru) 2004-12-30
EP1252149B1 (en) 2005-06-01
WO2001057000A1 (en) 2001-08-09
RO121776B1 (ro) 2008-04-30
EA200200829A1 (ru) 2003-02-27
DE60111185T2 (de) 2006-03-23
US6617455B2 (en) 2003-09-09
NO20023621D0 (no) 2002-07-30
EP1252149A1 (en) 2002-10-30
US20030040624A1 (en) 2003-02-27
TW555750B (en) 2003-10-01
AU3424001A (en) 2001-08-14
AU2001234240B2 (en) 2005-04-21
CA2398989A1 (en) 2001-08-09
MXPA02007550A (es) 2002-12-13
PL356323A1 (en) 2004-06-28
NL1014280C2 (nl) 2001-08-06
ATE296813T1 (de) 2005-06-15
KR20020073572A (ko) 2002-09-27
JP2003521540A (ja) 2003-07-15
KR100703548B1 (ko) 2007-04-03
CN1396914A (zh) 2003-02-12
DE60111185D1 (de) 2005-07-07

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Legal Events

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