DE50203639D1 - PROCESS FOR PREPARING MELEMFREE MELAMINE AND QUENCHER - Google Patents

PROCESS FOR PREPARING MELEMFREE MELAMINE AND QUENCHER

Info

Publication number
DE50203639D1
DE50203639D1 DE50203639T DE50203639T DE50203639D1 DE 50203639 D1 DE50203639 D1 DE 50203639D1 DE 50203639 T DE50203639 T DE 50203639T DE 50203639 T DE50203639 T DE 50203639T DE 50203639 D1 DE50203639 D1 DE 50203639D1
Authority
DE
Germany
Prior art keywords
melemfree
quencher
melamine
preparing
preparing melemfree
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
DE50203639T
Other languages
German (de)
Inventor
Frank Schroeder
Wolfgang Ruech
Christoph Neumueller
Ferdinand Koglgruber
Christian Wagner
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.)
AMI Agrolinz Melamine International GmbH
Original Assignee
AMI Agrolinz Melamine International GmbH
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 AMI Agrolinz Melamine International GmbH filed Critical AMI Agrolinz Melamine International GmbH
Priority to DE50203639T priority Critical patent/DE50203639D1/en
Priority claimed from PCT/DE2002/004251 external-priority patent/WO2003045927A1/en
Application granted granted Critical
Publication of DE50203639D1 publication Critical patent/DE50203639D1/en
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
    • C07D251/62—Purification of melamine
DE50203639T 2001-11-16 2002-11-14 PROCESS FOR PREPARING MELEMFREE MELAMINE AND QUENCHER Expired - Lifetime DE50203639D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE50203639T DE50203639D1 (en) 2001-11-16 2002-11-14 PROCESS FOR PREPARING MELEMFREE MELAMINE AND QUENCHER

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT0180701A AT410795B (en) 2001-11-16 2001-11-16 Production of melem-free melamine from a melamine melt comprises separating off-gases, quenching the melt with an aqueous alkali solution and crystallizing melamine from the resulting alkaline melamine solution
DE10229100A DE10229100A1 (en) 2001-11-16 2002-06-25 Production of melem-free melamine from a melamine melt comprises separating off-gases, quenching the melt with an aqueous alkali solution and crystallizing melamine from the resulting alkaline melamine solution
PCT/DE2002/004251 WO2003045927A1 (en) 2001-11-16 2002-11-14 Method for producing melem-free melamine and quenching agents
DE50203639T DE50203639D1 (en) 2001-11-16 2002-11-14 PROCESS FOR PREPARING MELEMFREE MELAMINE AND QUENCHER

Publications (1)

Publication Number Publication Date
DE50203639D1 true DE50203639D1 (en) 2005-08-18

Family

ID=3689003

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10229100A Withdrawn DE10229100A1 (en) 2001-11-16 2002-06-25 Production of melem-free melamine from a melamine melt comprises separating off-gases, quenching the melt with an aqueous alkali solution and crystallizing melamine from the resulting alkaline melamine solution
DE50203639T Expired - Lifetime DE50203639D1 (en) 2001-11-16 2002-11-14 PROCESS FOR PREPARING MELEMFREE MELAMINE AND QUENCHER

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE10229100A Withdrawn DE10229100A1 (en) 2001-11-16 2002-06-25 Production of melem-free melamine from a melamine melt comprises separating off-gases, quenching the melt with an aqueous alkali solution and crystallizing melamine from the resulting alkaline melamine solution

Country Status (3)

Country Link
AR (1) AR037538A1 (en)
AT (1) AT410795B (en)
DE (2) DE10229100A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004018784A1 (en) 2004-04-14 2005-11-03 Ami-Agrolinz Melamine International Gmbh Process for the preparation of pure melamine
WO2007000176A1 (en) * 2005-06-28 2007-01-04 Casale Chemicals S.A. Process for gently cooling and crystallizing melamine from a melamine melt or from the gaseous phase

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL198432B1 (en) * 1998-11-13 2008-06-30 Agrolinz Melamin Gmbh Method for producing pure melamine

Also Published As

Publication number Publication date
ATA18072001A (en) 2002-12-15
AT410795B (en) 2003-07-25
DE10229100A1 (en) 2003-07-31
AR037538A1 (en) 2004-11-17

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8366 Restricted maintained after opposition proceedings