MY141592A - Two-stage reactor for the production of melamine - Google Patents

Two-stage reactor for the production of melamine

Info

Publication number
MY141592A
MY141592A MYPI20040126A MY141592A MY 141592 A MY141592 A MY 141592A MY PI20040126 A MYPI20040126 A MY PI20040126A MY 141592 A MY141592 A MY 141592A
Authority
MY
Malaysia
Prior art keywords
melamine
reactor
production
stage reactor
catalyst
Prior art date
Application number
Inventor
Christian Dr Kuhrs
Eckehard Dr Danz
Wolfgang Dr Steiner
Ralf-Thomas Dr Rahn
Thomas Dr Grasler
Reiner Dr Geier
Klaus Dr Harth
Markus Dr Hoelzie
Original Assignee
Basf Ag
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 Ag filed Critical Basf Ag
Publication of MY141592A publication Critical patent/MY141592A/en

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)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

THE PRESENT INVENTION RELATES TO A PRECESS FOR THE CATALYTIC PREPARATION OF MELAMINE BY DECOMPOSITION OF UREA OVER PARTICULAR SOLID CATALYSTS USING A MAIN REACTOR AND AN AFTER-REACTOR. A CATALYST HAVING A LOW LEWIS ACIDITY IS USED IN THE MAIN REACTOR AND A CATALYST HAVING AN EQUAL OR PREFERABLY HIGHER LEWIS ACIDITY IS USED IN THE AFTER-REACTOR.
MYPI20040126 2003-01-17 2004-01-16 Two-stage reactor for the production of melamine MY141592A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003101703 DE10301703A1 (en) 2003-01-17 2003-01-17 Melamine production by urea decomposition is effected in main- and post- reactors containing catalysts of different acidity values

Publications (1)

Publication Number Publication Date
MY141592A true MY141592A (en) 2010-05-14

Family

ID=32602668

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20040126 MY141592A (en) 2003-01-17 2004-01-16 Two-stage reactor for the production of melamine

Country Status (3)

Country Link
CN (1) CN100425597C (en)
DE (1) DE10301703A1 (en)
MY (1) MY141592A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100388972C (en) * 2006-05-16 2008-05-21 梁振玉 Production method of alumina catalyst for melamine production
CN110665521A (en) * 2019-10-29 2020-01-10 青岛惠城环保科技股份有限公司 Catalyst for synthesizing melamine and preparation method thereof
CN113694912A (en) * 2021-09-16 2021-11-26 四川金象赛瑞化工股份有限公司 Catalyst for melamine production and preparation method thereof
CN113694911A (en) * 2021-09-16 2021-11-26 四川金象赛瑞化工股份有限公司 Catalyst for synthesizing melamine and preparation method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9002606A (en) * 1990-11-29 1992-06-16 Stamicarbon PROCESS FOR THE PREPARATION OF MELAMINE FROM UREA.
BR0012789A (en) * 1999-07-27 2002-04-30 Agrolinz Melamin Gmbh Process for preparing melamine

Also Published As

Publication number Publication date
DE10301703A1 (en) 2004-07-29
CN1723203A (en) 2006-01-18
CN100425597C (en) 2008-10-15

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