DE69719996D1 - Verfahren zur herstellung von melamin - Google Patents

Verfahren zur herstellung von melamin

Info

Publication number
DE69719996D1
DE69719996D1 DE69719996T DE69719996T DE69719996D1 DE 69719996 D1 DE69719996 D1 DE 69719996D1 DE 69719996 T DE69719996 T DE 69719996T DE 69719996 T DE69719996 T DE 69719996T DE 69719996 D1 DE69719996 D1 DE 69719996D1
Authority
DE
Germany
Prior art keywords
melamine
ammonia
melt
cooled
mixture
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.)
Expired - Lifetime
Application number
DE69719996T
Other languages
English (en)
Other versions
DE69719996T2 (de
Inventor
Wijck Gerardus Van
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DSM IP Assets BV
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
Application granted granted Critical
Publication of DE69719996D1 publication Critical patent/DE69719996D1/de
Publication of DE69719996T2 publication Critical patent/DE69719996T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
DE69719996T 1996-06-13 1997-06-11 Verfahren zur herstellung von melamin Expired - Lifetime DE69719996T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1003328A NL1003328C2 (nl) 1996-06-13 1996-06-13 Werkwijze voor het bereiden van melamine.
NL1003328 1996-06-13
PCT/NL1997/000333 WO1997047609A1 (en) 1996-06-13 1997-06-11 Method for the preparation of melamine

Publications (2)

Publication Number Publication Date
DE69719996D1 true DE69719996D1 (de) 2003-04-24
DE69719996T2 DE69719996T2 (de) 2004-01-08

Family

ID=19763010

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69719996T Expired - Lifetime DE69719996T2 (de) 1996-06-13 1997-06-11 Verfahren zur herstellung von melamin

Country Status (12)

Country Link
US (1) US6245909B1 (de)
EP (1) EP0920420B1 (de)
JP (1) JP2000511926A (de)
CN (1) CN1165530C (de)
AT (1) ATE234823T1 (de)
AU (1) AU720041B2 (de)
DE (1) DE69719996T2 (de)
ES (1) ES2195143T3 (de)
NL (1) NL1003328C2 (de)
NO (1) NO311721B1 (de)
PL (1) PL190787B1 (de)
WO (1) WO1997047609A1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
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
CN1144792C (zh) 1997-05-21 2004-04-07 Dsm有限公司 制备蜜胺的方法
CA2291736A1 (en) * 1997-05-28 1998-12-03 Dsm N.V. Method for preparing melamine
WO1998055466A1 (en) * 1997-06-02 1998-12-10 Dsm N.V. Method for preparing melamine
NL1006192C2 (nl) 1997-06-02 1998-12-03 Dsm Nv Werkwijze voor het bereiden van melamine.
NL1008571C2 (nl) * 1998-03-12 1999-07-28 Dsm Nv Kristallijn melamine.
EP1035117A1 (de) 1999-03-08 2000-09-13 Dsm N.V. Verfahren zur Herstellung von Melamin aus Harnstoff
DE50010873D1 (de) 1999-03-15 2005-09-08 Ami Agrolinz Melamine Int Gmbh Verfahren zur herstellung von festem melamin
EP1138676A1 (de) * 2000-03-27 2001-10-04 Casale Chemicals SA Verfahren zur Herstellung von Melamin hoher Reinheit
DE10030453B4 (de) * 2000-06-21 2007-07-12 Faramarz Bairamijamal Verfahren zur Herstellung von hoch reinem Melamin nach trockener Aufbereitung
AT410793B (de) * 2000-12-27 2003-07-25 Agrolinz Melamin Gmbh Verfahren zur herstellung von melamin
PL206366B1 (pl) * 2001-11-16 2010-07-30 Ami Agrolinz Melamine International Gmbhami Agrolinz Melamine International Gmbh Sposób oczyszczania gazu wylotowego z wysokociśnieniowej instalacji do wytwarzania melaminy oraz urządzenie do oczyszczania gazu wylotowego z wysokociśnieniowej instalacji do wytwarzania melaminy
ITMI20021026A1 (it) * 2002-05-14 2003-11-14 Eurotecnica Dev & Licensing S Processo di produzione di melammina da urea e particolarmente per ottenere off-gas privi di melammina nello stadio di prima separazione
CN115944942B (zh) * 2022-12-06 2024-04-12 四川金象赛瑞化工股份有限公司 一种氰胺类物质的制备方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166294A (en) * 1961-05-01 1965-01-19 Ford Motor Co Butterfly valve
IE57911B1 (en) * 1984-01-05 1993-05-19 Melamine Chemicals Inc Production of melamine
US4565867A (en) * 1984-01-05 1986-01-21 Melamine Chemicals, Inc. Anhydrous high-pressure melamine synthesis
AT402295B (de) * 1994-12-23 1997-03-25 Agrolinz Melamin Gmbh Verfahren zur reinigung von melamin
AT402294B (de) * 1994-12-23 1997-03-25 Agrolinz Melamin Gmbh Verfahren zur herstellung von hochreinem melamin
AT402296B (de) * 1995-02-03 1997-03-25 Agrolinz Melamin Gmbh Verfahren zur reinigung von melamin
US5514797A (en) * 1995-06-07 1996-05-07 Melamine Chemicals, Inc. Method for increasing purity of melamine
US5514796A (en) * 1995-06-07 1996-05-07 Melamine Chemicals, Inc. Melamine of improved purity produced by high-pressure, non-catalytic process

Also Published As

Publication number Publication date
DE69719996T2 (de) 2004-01-08
EP0920420B1 (de) 2003-03-19
NO985744D0 (no) 1998-12-08
NO985744L (no) 1999-01-29
NL1003328C2 (nl) 1997-12-17
CN1165530C (zh) 2004-09-08
ES2195143T3 (es) 2003-12-01
PL190787B1 (pl) 2006-01-31
JP2000511926A (ja) 2000-09-12
PL330866A1 (en) 1999-06-07
WO1997047609A1 (en) 1997-12-18
ATE234823T1 (de) 2003-04-15
AU720041B2 (en) 2000-05-25
US6245909B1 (en) 2001-06-12
NO311721B1 (no) 2002-01-14
EP0920420A1 (de) 1999-06-09
AU3108597A (en) 1998-01-07
CN1227549A (zh) 1999-09-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: DSM IP ASSETS B.V., HEERLEN, NL