ES2175034T3 - Melamina de pureza mejorada, producida por un proceso de alta presion,no catalitico. - Google Patents

Melamina de pureza mejorada, producida por un proceso de alta presion,no catalitico.

Info

Publication number
ES2175034T3
ES2175034T3 ES96303675T ES96303675T ES2175034T3 ES 2175034 T3 ES2175034 T3 ES 2175034T3 ES 96303675 T ES96303675 T ES 96303675T ES 96303675 T ES96303675 T ES 96303675T ES 2175034 T3 ES2175034 T3 ES 2175034T3
Authority
ES
Spain
Prior art keywords
melamine
catalytic
produced
high pressure
pressure process
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
ES96303675T
Other languages
English (en)
Inventor
David Best
Amit Gupta
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 Melamine BV
Original Assignee
DSM Melamine BV
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23898467&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2175034(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by DSM Melamine BV filed Critical DSM Melamine BV
Application granted granted Critical
Publication of ES2175034T3 publication Critical patent/ES2175034T3/es
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)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

SE DESCRIBE UN PROCESO DE ALTA PRESION, NO CATALITICO, PARA PRODUCIR MELAMINA A PARTIR DE UREA EN DONDE LA MELAMINA ES RECUPERADA DIRECTAMENTE COMO UN POLVO SECO SIN LAVADO O RECRISTALIZACION.EN EL PROCESO, LA MELAMINA LIQUIDA ES CLIMATIZADOR DONDE ES APAGADA CON UN MEDIO LIQUIDO, PREFERIBLEMENTE AMONIACO LIQUIDO.INCREMENTANDO LA PRESION DENTRO DEL CLIMATIZADOR A UNA PRESION EN EXCESO DE 41.4 BAR (600 PSI) Y PREFERIBLEMENTE A 82.7 A 96.5 BAR (1200 A 1400 PSI) SUMINISTRA MELAMINA QUE TIENE UNA PUREZA EN EXCESO DEL 99%.
ES96303675T 1995-06-07 1996-05-23 Melamina de pureza mejorada, producida por un proceso de alta presion,no catalitico. Expired - Lifetime ES2175034T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/478,088 US5514796A (en) 1995-06-07 1995-06-07 Melamine of improved purity produced by high-pressure, non-catalytic process

Publications (1)

Publication Number Publication Date
ES2175034T3 true ES2175034T3 (es) 2002-11-16

Family

ID=23898467

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96303675T Expired - Lifetime ES2175034T3 (es) 1995-06-07 1996-05-23 Melamina de pureza mejorada, producida por un proceso de alta presion,no catalitico.

Country Status (19)

Country Link
US (1) US5514796A (es)
EP (1) EP0747366B1 (es)
JP (1) JPH0912559A (es)
KR (1) KR100472913B1 (es)
AT (1) ATE215534T1 (es)
AU (1) AU706404B2 (es)
BR (1) BR9602673A (es)
CA (1) CA2177521A1 (es)
DE (1) DE69620298T2 (es)
EG (1) EG22590A (es)
ES (1) ES2175034T3 (es)
NO (1) NO307338B1 (es)
NZ (1) NZ286589A (es)
PL (1) PL185494B1 (es)
RO (1) RO119194B1 (es)
RU (1) RU2161608C2 (es)
TW (1) TW334429B (es)
UA (1) UA46722C2 (es)
ZA (1) ZA963945B (es)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT402294B (de) * 1994-12-23 1997-03-25 Agrolinz Melamin Gmbh Verfahren zur herstellung von hochreinem melamin
AT403579B (de) * 1995-12-07 1998-03-25 Agrolinz Melamin Gmbh Verfahren zur herstellung von hochreinem melamin
US6380385B1 (en) 1995-12-07 2002-04-30 Agrolinz Melanin Gmbh Process for the preparation of pure melamine
NL1002669C2 (nl) * 1996-03-21 1997-09-23 Dsm Nv Werkwijze voor de bereiding van melamine.
NL1003105C2 (nl) * 1996-05-14 1997-11-18 Dsm Nv Werkwijze voor de bereiding van melamine.
NL1003328C2 (nl) * 1996-06-13 1997-12-17 Dsm Nv Werkwijze voor het bereiden van melamine.
NL1003709C2 (nl) 1996-07-30 1998-02-05 Dsm Nv Werkwijze voor het bereiden van melamine.
NL1003923C2 (nl) 1996-08-30 1998-03-04 Dsm Nv Werkwijze voor de bereiding van ureum.
WO1998027071A1 (en) * 1996-12-16 1998-06-25 Dsm N.V. Method for the preparation of melamine
NL1004814C2 (nl) * 1996-12-18 1998-06-19 Dsm Nv Werkwijze voor het bereiden van melamine.
NL1006095C2 (nl) * 1997-05-21 1998-11-25 Dsm Nv Werkwijze voor het bereiden van melamine.
AU728549B2 (en) 1997-05-21 2001-01-11 Dsm Ip Assets B.V. Method for preparing melamine
NL1006147C2 (nl) * 1997-05-28 1998-12-01 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
NL1006191C2 (nl) * 1997-06-02 1998-12-03 Dsm Nv Kristallijn melamine.
NL1006192C2 (nl) * 1997-06-02 1998-12-03 Dsm Nv Werkwijze voor het bereiden van melamine.
EP0986547A1 (en) * 1997-06-02 2000-03-22 Dsm N.V. Method for preparing melamine
DE69837432T2 (de) * 1997-06-02 2007-12-13 Dsm Ip Assets B.V. Kristallines melamin
US6355797B2 (en) 1998-01-30 2002-03-12 Agrolinz Melamin Gmbh Process for cooling melamine
NL1008571C2 (nl) * 1998-03-12 1999-07-28 Dsm Nv Kristallijn melamine.
GB2337259B (en) * 1998-05-12 2000-03-29 Dsm Nv Method for preparing melamine
US6303781B1 (en) 1998-05-12 2001-10-16 Dsm N.V. Method for preparing melamine
EP1035117A1 (en) * 1999-03-08 2000-09-13 Dsm N.V. Method for preparing melamine from urea
NL1013456C2 (nl) * 1999-11-02 2001-05-03 Dsm Nv Kristallijn melamine en de toepassing in aminoformaldehydeharsen.
EP1138676A1 (en) 2000-03-27 2001-10-04 Casale Chemicals SA Process for producing melamine at high pureness
AT410210B (de) * 2000-08-07 2003-03-25 Agrolinz Melamin Gmbh Verfahren zur herstellung von melamin
EP1188751A1 (en) * 2000-09-13 2002-03-20 Casale Chemicals SA Process for the production of high purity melamine from urea
CN100518896C (zh) * 2001-11-16 2009-07-29 Ami-阿格罗林茨蜜胺有限公司 纯化三聚氰胺设备废气的方法
AU2002351684B2 (en) * 2001-11-16 2008-02-07 Ami-Agrolinz Melamine International Gmbh Method for producing melem-free melamine and quenching agents
NL1022764C2 (nl) * 2003-02-24 2004-08-26 Dsm Nv Natte quench.
DE10326827A1 (de) * 2003-06-12 2004-12-30 Ami-Agrolinz Melamine International Gmbh Verfahren und Vorrichtung zur Herstellung von Melamin im einphasigen Rohrreaktor
DE502004003874D1 (de) * 2004-01-17 2007-07-05 Casale Chemicals Sa Verfahren zur schonenden Abkühlung und Kristallisation von Melamin aus einer Melaminschmelze oder aus der Gasphase
DE102004051432A1 (de) * 2004-10-20 2006-04-27 Ami-Agrolinz Melamine International Gmbh Verfahren zur Behandlung von triazinhaltigem Wasser einer Melaminanlage
DE102005028665A1 (de) * 2005-06-15 2007-01-04 Ami-Agrolinz Melamine International Gmbh Verfahren zur Reinigung von Abwässern aus Melaminanlagen
US7153962B1 (en) 2005-07-12 2006-12-26 Casale Chemicals S.A. Process for gently cooling and crystallizing melamine from a melamine melt or from the gaseous phase
DE102006055571B4 (de) * 2006-11-20 2018-09-27 Urea Casale S.A. Verfahren und Vorrichtung zur Aufarbeitung einer Melaminschmelze
CN101863848B (zh) * 2010-05-28 2012-07-18 四川金象赛瑞化工股份有限公司 用于制备三聚氰胺的系统及方法
RU2495875C1 (ru) * 2012-10-11 2013-10-20 Открытое Акционерное Общество "Научно-Исследовательский И Проектный Институт Карбамида И Продуктов Органического Синтеза" (Оао Ниик) Способ охлаждения расплава меламина
EP2907567A1 (en) * 2014-02-18 2015-08-19 Casale Sa Combined reactor for high-pressure synthesis of melamine
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 (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3116294A (en) * 1963-12-31 Process- for preparing high-purity melamine from urea
HU184277B (en) * 1979-05-03 1984-07-30 Stamicarbon Process for preparing melamine
US4565867A (en) * 1984-01-05 1986-01-21 Melamine Chemicals, Inc. Anhydrous high-pressure melamine synthesis
IE57911B1 (en) * 1984-01-05 1993-05-19 Melamine Chemicals Inc Production of melamine
FI96028C (fi) * 1993-07-01 1996-04-25 Kemira Oy Menetelmä melamiinin valmistamiseksi

Also Published As

Publication number Publication date
EP0747366B1 (en) 2002-04-03
TW334429B (en) 1998-06-21
AU706404B2 (en) 1999-06-17
DE69620298T2 (de) 2002-11-28
ZA963945B (en) 1996-12-10
BR9602673A (pt) 1998-11-10
CA2177521A1 (en) 1996-12-08
DE69620298D1 (de) 2002-05-08
NZ286589A (en) 1998-04-27
UA46722C2 (uk) 2002-06-17
NO307338B1 (no) 2000-03-20
NO962339D0 (no) 1996-06-05
JPH0912559A (ja) 1997-01-14
AU5473296A (en) 1996-12-19
EP0747366A2 (en) 1996-12-11
RO119194B1 (ro) 2004-05-28
US5514796A (en) 1996-05-07
PL185494B1 (pl) 2003-05-30
EP0747366A3 (en) 1999-02-10
EG22590A (en) 2003-04-30
PL314673A1 (en) 1996-12-09
KR100472913B1 (ko) 2005-08-17
NO962339L (no) 1996-12-09
ATE215534T1 (de) 2002-04-15
RU2161608C2 (ru) 2001-01-10
KR970001336A (ko) 1997-01-24

Similar Documents

Publication Publication Date Title
EG22590A (en) Melamine of improved purity produced by high-pressure non-catalytic process
MX9804435A (es) Proceso para la preparacion de melamina pura.
EP0796288A4 (en) Binder composition comprising amine polyol reaction product
BR9200986A (pt) Processo de producao de ureia
ES2195078T3 (es) Metodo para la preparacion de melamina.
ZA988922B (en) Process for the synthesis of high-grade chloramine
MX9600600A (es) Procedimiento de alto rendimiento para la sintesis de urea.
GEP20012441B (en) Process for Preparing 3-Methylpiperidine and 3-Methylpyridine
BG105099A (en) Process for the preparation of urea
YU34493A (sh) Postupak i uredjaj za proizvodnju hlorata alkalnog metala
DE69226010D1 (de) Verfahren zur Herstellung von Harnstoff mit Reaktionsräumen unterschiedlicher Ausbeuten
TW328071B (en) Process for the synthesis of difluoromethane
KR940014379A (ko) 트리옥산의 제조방법
TW334350B (en) The producing method for ultra-filter Alumina tube filters
KR850000700B1 (en) Urea production method
GB1309275A (en) Synthesis of urea from melamine synthesis waste gas
KR100192076B1 (en) Process for the preparation of melamine from urea
KR910009627A (ko) 글리옥살산 수용액을 공업적으로 연속 제조하는 신규의 방법
AU4651196A (en) Novel synthesis of penta-substituted guanidines
IL131513A0 (en) Method for producing 1,3-di-substituted 2-nitroguanidines
AU3423901A (en) Process for preparing melamine from urea
GB1327321A (en) Process for urea synthesis
SU1743148A1 (ru) Способ получения нитрилотриуксусной кислоты
RU96112134A (ru) Способ повышения чистоты меламина
MY132335A (en) Processes for producing 1, 6-hexanediols

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 747366

Country of ref document: ES