MA31829B1 - Procédé de production de mélamine - Google Patents

Procédé de production de mélamine

Info

Publication number
MA31829B1
MA31829B1 MA32767A MA32767A MA31829B1 MA 31829 B1 MA31829 B1 MA 31829B1 MA 32767 A MA32767 A MA 32767A MA 32767 A MA32767 A MA 32767A MA 31829 B1 MA31829 B1 MA 31829B1
Authority
MA
Morocco
Prior art keywords
melamine
reactor
production method
gas
urea
Prior art date
Application number
MA32767A
Other languages
Arabic (ar)
English (en)
Inventor
Andreas Kern
Hans-Ulrich Pröbstle
Tilo John
Wolfgang Steiner
Heiko Maas
Original Assignee
Basf Se
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 Basf Se filed Critical Basf Se
Publication of MA31829B1 publication Critical patent/MA31829B1/fr

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)
  • Treating Waste Gases (AREA)
  • Catalysts (AREA)

Abstract

L'invention concerne un procédé de production de mélamine consistant à faire réagir de l'urée en présence d'un catalyseur solide dans un réacteur ou plusieurs réacteurs montés en série dans une plage de température allant de 370 °c à 430 °c, à refroidir et à filtrer le gaz formé lors de la réaction de l'urée, à séparer la mélamine par désublimation et à réinjecter dans le ou les réacteurs une partie du gaz présent après séparation de la mélamine ('gaz de recyclage'). Le procédé se caractérise en ce que toutes les étapes susmentionnées sont exécutées sous une pression comprise entre 4 et 10 bars absolus.
MA32767A 2007-10-15 2010-04-14 Procédé de production de mélamine MA31829B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07118498A EP2050740A1 (fr) 2007-10-15 2007-10-15 Procédé de fabrication de mélamine
PCT/EP2008/063804 WO2009050169A2 (fr) 2007-10-15 2008-10-14 Procédé de production de mélamine

Publications (1)

Publication Number Publication Date
MA31829B1 true MA31829B1 (fr) 2010-11-01

Family

ID=39201606

Family Applications (1)

Application Number Title Priority Date Filing Date
MA32767A MA31829B1 (fr) 2007-10-15 2010-04-14 Procédé de production de mélamine

Country Status (19)

Country Link
US (1) US9598379B2 (fr)
EP (2) EP2050740A1 (fr)
JP (1) JP5721435B2 (fr)
KR (1) KR101563021B1 (fr)
CN (1) CN101827829B (fr)
AR (1) AR068868A1 (fr)
AU (1) AU2008313759B2 (fr)
BR (1) BRPI0818422A2 (fr)
CA (1) CA2701977C (fr)
CL (1) CL2008003049A1 (fr)
EA (1) EA201000476A1 (fr)
EG (1) EG26253A (fr)
MA (1) MA31829B1 (fr)
MY (1) MY152284A (fr)
PL (1) PL2212302T3 (fr)
TN (1) TN2010000159A1 (fr)
UA (1) UA103755C2 (fr)
WO (1) WO2009050169A2 (fr)
ZA (1) ZA201003378B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009052420C5 (de) * 2009-11-10 2014-05-22 Lurgi Gmbh Verfahren zur kontinuierlichen Herstellung von Melamin
CA2832887A1 (fr) 2011-04-11 2012-10-18 ADA-ES, Inc. Methode par lit fluidise et systeme de capture de composant gazeux
CN102219754B (zh) * 2011-04-28 2013-09-11 四川金象赛瑞化工股份有限公司 节能节资型气相淬冷法蜜胺生产系统及其工艺
US9278314B2 (en) 2012-04-11 2016-03-08 ADA-ES, Inc. Method and system to reclaim functional sites on a sorbent contaminated by heat stable salts
CN110028460A (zh) * 2018-01-12 2019-07-19 郗运柱 一种三聚氰胺的生产系统及其生产工艺
KR102293767B1 (ko) * 2019-11-26 2021-08-26 한국과학기술연구원 금속 단일원자 촉매의 제조방법

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE760072A (fr) * 1969-12-11 1971-06-09 Stamicarbon Procede pour la separation de melamine a partir d'un melange gazeux de synthese comprenant de la vapeur de melamine
NL6919152A (fr) * 1969-12-20 1971-06-22
NL7903473A (nl) * 1979-05-03 1980-11-05 Stamicarbon Werkwijze voor het bereiden van melamine.
DE3302833A1 (de) * 1983-01-28 1984-08-02 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von melamin
US7253280B2 (en) * 2003-01-17 2007-08-07 Basf Aktiengesellschaft Two-stage reactor for the production of melamine

Also Published As

Publication number Publication date
MY152284A (en) 2014-09-15
WO2009050169A2 (fr) 2009-04-23
ZA201003378B (en) 2011-07-27
BRPI0818422A2 (pt) 2015-04-22
TN2010000159A1 (fr) 2011-11-11
CN101827829B (zh) 2012-07-25
JP5721435B2 (ja) 2015-05-20
EP2212302A2 (fr) 2010-08-04
US9598379B2 (en) 2017-03-21
AR068868A1 (es) 2009-12-09
US20100222582A1 (en) 2010-09-02
CA2701977A1 (fr) 2009-04-23
KR101563021B1 (ko) 2015-10-23
CL2008003049A1 (es) 2010-06-11
CN101827829A (zh) 2010-09-08
EA201000476A1 (ru) 2010-10-29
PL2212302T3 (pl) 2016-11-30
KR20100091968A (ko) 2010-08-19
AU2008313759B2 (en) 2013-01-24
UA103755C2 (ru) 2013-11-25
CA2701977C (fr) 2016-05-17
AU2008313759A1 (en) 2009-04-23
EP2050740A1 (fr) 2009-04-22
EG26253A (en) 2013-06-02
WO2009050169A3 (fr) 2009-07-16
EP2212302B1 (fr) 2016-04-27
JP2011500622A (ja) 2011-01-06

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