DE69719850D1 - Verfahren zur Herstellung von Melamin - Google Patents

Verfahren zur Herstellung von Melamin

Info

Publication number
DE69719850D1
DE69719850D1 DE69719850T DE69719850T DE69719850D1 DE 69719850 D1 DE69719850 D1 DE 69719850D1 DE 69719850 T DE69719850 T DE 69719850T DE 69719850 T DE69719850 T DE 69719850T DE 69719850 D1 DE69719850 D1 DE 69719850D1
Authority
DE
Germany
Prior art keywords
melamine
mixture
reaction product
liquid
production
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 - Fee Related
Application number
DE69719850T
Other languages
English (en)
Other versions
DE69719850T2 (de
Inventor
Wijck Gerardus Van
Haan Banier De
Johannes Biermans
Van Rudolf Hardeveld
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
Publication of DE69719850D1 publication Critical patent/DE69719850D1/de
Application granted granted Critical
Publication of DE69719850T2 publication Critical patent/DE69719850T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • C07D251/62—Purification of melamine

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
DE69719850T 1996-05-14 1997-05-07 Verfahren zur Herstellung von Melamin Expired - Fee Related DE69719850T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1003105A NL1003105C2 (nl) 1996-05-14 1996-05-14 Werkwijze voor de bereiding van melamine.

Publications (2)

Publication Number Publication Date
DE69719850D1 true DE69719850D1 (de) 2003-04-24
DE69719850T2 DE69719850T2 (de) 2003-12-24

Family

ID=19762851

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69719850T Expired - Fee Related DE69719850T2 (de) 1996-05-14 1997-05-07 Verfahren zur Herstellung von Melamin

Country Status (8)

Country Link
EP (1) EP0808836B1 (de)
JP (1) JPH1045730A (de)
CN (2) CN1142921C (de)
AT (1) ATE234822T1 (de)
DE (1) DE69719850T2 (de)
ES (1) ES2195078T3 (de)
ID (1) ID16895A (de)
NL (1) NL1003105C2 (de)

Families Citing this family (19)

* 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
NL1006095C2 (nl) * 1997-05-21 1998-11-25 Dsm Nv Werkwijze voor het bereiden van melamine.
KR100495262B1 (ko) 1997-05-21 2005-06-14 코닌클리즈케 디에스엠 엔.브이. 멜라민의 제조방법
CN1130353C (zh) 1997-05-28 2003-12-10 Dsm有限公司 制备蜜胺的方法
NL1006147C2 (nl) * 1997-05-28 1998-12-01 Dsm Nv Werkwijze voor het bereiden van melamine.
CN1202091C (zh) * 1997-06-02 2005-05-18 Dsmip财产有限公司 晶态蜜胺
NL1006192C2 (nl) 1997-06-02 1998-12-03 Dsm Nv Werkwijze voor het bereiden van melamine.
WO1998055466A1 (en) * 1997-06-02 1998-12-10 Dsm N.V. Method for preparing melamine
NL1006191C2 (nl) * 1997-06-02 1998-12-03 Dsm Nv Kristallijn melamine.
JPH11209353A (ja) * 1998-01-23 1999-08-03 Nissan Chem Ind Ltd メラミン工程廃液からのメラミン、アンメリン及びアンメリドの回収方法
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
KR20020000220A (ko) * 1999-03-15 2002-01-05 갈러 롤란트, 가이쓸러 디트프리트 고체 멜라민의 제조방법
EP1054006A1 (de) * 1999-05-20 2000-11-22 Dsm N.V. Verfahren zur Herstellung von Melamin
NL1013217C2 (nl) * 1999-10-05 2001-04-06 Dsm Nv Werkwijze voor de bereiding van melamine.
AT409489B (de) 2000-10-20 2002-08-26 Agrolinz Melamin Gmbh Verfahren zur herstellung von melamin
NL1018283C2 (nl) * 2001-06-13 2002-12-19 Dsm Nv Werkwijze voor het in contact brengen van gesmolten ureum met een gasstroom.
DE10326827A1 (de) 2003-06-12 2004-12-30 Ami-Agrolinz Melamine International Gmbh Verfahren und Vorrichtung zur Herstellung von Melamin im einphasigen Rohrreaktor
CN114452897A (zh) * 2022-01-06 2022-05-10 四川金象赛瑞化工股份有限公司 一种尿素加料装置、加料方法及三聚氰胺生产装置和方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1220476A (en) * 1984-01-05 1987-04-14 David E. Best Anhydrous high-pressure melamine synthesis
US4565867A (en) * 1984-01-05 1986-01-21 Melamine Chemicals, Inc. Anhydrous high-pressure melamine synthesis
IT1261841B (it) * 1993-08-23 1996-06-03 Conser Spa Procedimento per la produzione di melammina ad alta purezza.
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
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
ES2195078T3 (es) 2003-12-01
DE69719850T2 (de) 2003-12-24
ATE234822T1 (de) 2003-04-15
CN1065239C (zh) 2001-05-02
CN1170720A (zh) 1998-01-21
CN1273243A (zh) 2000-11-15
ID16895A (id) 1997-11-20
EP0808836A1 (de) 1997-11-26
JPH1045730A (ja) 1998-02-17
EP0808836B1 (de) 2003-03-19
NL1003105C2 (nl) 1997-11-18
CN1142921C (zh) 2004-03-24

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

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

8339 Ceased/non-payment of the annual fee