ATE234822T1 - Verfahren zur herstellung von melamin - Google Patents

Verfahren zur herstellung von melamin

Info

Publication number
ATE234822T1
ATE234822T1 AT97201380T AT97201380T ATE234822T1 AT E234822 T1 ATE234822 T1 AT E234822T1 AT 97201380 T AT97201380 T AT 97201380T AT 97201380 T AT97201380 T AT 97201380T AT E234822 T1 ATE234822 T1 AT E234822T1
Authority
AT
Austria
Prior art keywords
melamine
mixture
reaction product
liquid
medium
Prior art date
Application number
AT97201380T
Other languages
English (en)
Inventor
Wijck Julius Gerardus Theo Van
Haan Andre Banier De
Andreas Johannes Biermans
Van Rudolf Hardeveld
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 ATE234822T1 publication Critical patent/ATE234822T1/de

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)
AT97201380T 1996-05-14 1997-05-07 Verfahren zur herstellung von melamin ATE234822T1 (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 (1)

Publication Number Publication Date
ATE234822T1 true ATE234822T1 (de) 2003-04-15

Family

ID=19762851

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97201380T ATE234822T1 (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) CN1065239C (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
ID22917A (id) 1997-05-21 1999-12-16 Dsm Nv Metode bagi pembuatan melamina
NL1006095C2 (nl) * 1997-05-21 1998-11-25 Dsm Nv Werkwijze voor het bereiden van melamine.
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.
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.
AU731077B2 (en) * 1997-06-02 2001-03-22 Dsm Ip Assets B.V. Crystalline 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
SK12292001A3 (sk) * 1999-03-15 2002-02-05 Agrolinz Melamin Gmbh Spôsob výroby pevného melamínu
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
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
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
ID16895A (id) 1997-11-20
CN1065239C (zh) 2001-05-02
DE69719850T2 (de) 2003-12-24
DE69719850D1 (de) 2003-04-24
EP0808836B1 (de) 2003-03-19
NL1003105C2 (nl) 1997-11-18
EP0808836A1 (de) 1997-11-26
JPH1045730A (ja) 1998-02-17
CN1273243A (zh) 2000-11-15
CN1142921C (zh) 2004-03-24
ES2195078T3 (es) 2003-12-01
CN1170720A (zh) 1998-01-21

Similar Documents

Publication Publication Date Title
ATE234822T1 (de) Verfahren zur herstellung von melamin
ATE181909T1 (de) Verfahren zur herstellung von 6-methylheptan-2-on
ATE268788T1 (de) Verfahren zur herstellung von polyisocyanaten
DE69620298T2 (de) Durch nichtkatalytisches, unter Hochdruck arbeitendes Verfahren hergestelltes Melamin von verbesserter Reinheit
ATE253539T1 (de) Verfahren zur herstellung von kohlenwasserstoffen
DD232038A1 (de) Verfahren zur herstellung von harnstoff
ATE220392T1 (de) Verfahren zur herstellung von harnstoff
DE69704949D1 (de) Verfahren zur herstellung von harnstoff
ATE340639T1 (de) Verfahren zur herstellung von teilchen
DE59903189D1 (de) Verfahren zur herstellung von cellulosecarbamat
ATE1504T1 (de) Verfahren zur herstellung von melamin.
DE69808153D1 (de) Verfahren zur herstellung von ammoniumnitrat produkten mit verbesserter thermischer stabilität und produkte diese enthaltend
ATE295827T1 (de) Verfahren zur herstellung einer ammoniumcarbamatlösung aus einem gemisch von ammonia, wasser und kohlenstoffdioxid
ATE147003T1 (de) Verfahren zur herstellung von faserplatten
DE59803194D1 (de) Verfahren zur herstellung von 1,3-disubstituierten 2-nitroguanidinen
ATE299137T1 (de) Verfahren zur herstellung von melamin aus harnstoff
KR870009991A (ko) N-(술포닐메틸) 포름아미드의 제조방법
DE69005687D1 (de) Verfahren zur Herstellung von nichttoxischen, gaserzeugenden Feststofftreibladungen und so hergestellte Treibladungen.
DE69011644D1 (de) Verfahren zur herstellung stabilisierter lösungen von formaldehyd mit methanol.
KR940002331A (ko) 액체상 아교의 제조방법

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification

Ref document number: 0808836

Country of ref document: EP

REN Ceased due to non-payment of the annual fee