ES2124034T3 - Procedimiento para la purificacion de melamina. - Google Patents

Procedimiento para la purificacion de melamina.

Info

Publication number
ES2124034T3
ES2124034T3 ES95942138T ES95942138T ES2124034T3 ES 2124034 T3 ES2124034 T3 ES 2124034T3 ES 95942138 T ES95942138 T ES 95942138T ES 95942138 T ES95942138 T ES 95942138T ES 2124034 T3 ES2124034 T3 ES 2124034T3
Authority
ES
Spain
Prior art keywords
melamine
purification
procedure
ammonia pressure
temperature
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
ES95942138T
Other languages
English (en)
Inventor
Helmut Fingrhut
Lorenzo Canzi
Gerhard Coufal
Silvano Giacomuzzo
Martin Mullner
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.)
Agrolinz Melamin GmbH
Original Assignee
Agrolinz Melamin 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 Agrolinz Melamin GmbH filed Critical Agrolinz Melamin GmbH
Application granted granted Critical
Publication of ES2124034T3 publication Critical patent/ES2124034T3/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
    • C07D251/62—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)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Color Printing (AREA)
  • Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)

Abstract

LA PRESENTE INVENCION ESTA RELACIONADA CON UN PROCESO DE PURIFICACION DE LA MELAMINA DONDE LA MELAMINA IMPURA SE CALIENTA HASTA UNA TEMPERATURA POR ENCIMA DE 200 (GRADOS) C PERO POR DEBAJO DEL PUNTO DE FUSION ACTUAL DE LA MELAMINA, QUE DEPENDE DE LA PRESION DEL AMONIACO, Y SE MANTIENE EN ESTADO SOLIDO DENTRO DEL INTERVALO DE TEMPERATURA MENCIONADO BAJO UNA PRESION DE AMONIACO ENTRE 5 Y 350 BAR DURANTE UN PERIODO DE ENTRE 1 MINUTO Y 20 HORAS. A CONTINUACION SE EXPANDE Y SE ENFRIA HASTA LA TEMPERATURA AMBIENTE, O VICEVERSA, PARA OBTENER MELAMINA PURA EN FORMA DE POLVO.
ES95942138T 1994-12-23 1995-12-13 Procedimiento para la purificacion de melamina. Expired - Lifetime ES2124034T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0239394A AT402295B (de) 1994-12-23 1994-12-23 Verfahren zur reinigung von melamin

Publications (1)

Publication Number Publication Date
ES2124034T3 true ES2124034T3 (es) 1999-01-16

Family

ID=3533533

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95942138T Expired - Lifetime ES2124034T3 (es) 1994-12-23 1995-12-13 Procedimiento para la purificacion de melamina.

Country Status (17)

Country Link
EP (1) EP0799213B1 (es)
JP (1) JPH10511369A (es)
KR (1) KR100374731B1 (es)
CN (1) CN1068315C (es)
AT (2) AT402295B (es)
BR (1) BR9510606A (es)
DE (1) DE59504292D1 (es)
DK (1) DK0799213T3 (es)
ES (1) ES2124034T3 (es)
HR (1) HRP950605B1 (es)
IL (1) IL116516A (es)
NZ (1) NZ298044A (es)
PL (1) PL187434B1 (es)
RO (1) RO115521B1 (es)
RU (1) RU2161610C2 (es)
TW (1) TW299324B (es)
WO (1) WO1996020183A1 (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5514797A (en) * 1995-06-07 1996-05-07 Melamine Chemicals, Inc. Method for increasing purity of 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.
WO1998052928A1 (en) 1997-05-21 1998-11-26 Dsm N.V. Method for preparing melamine
NL1006095C2 (nl) * 1997-05-21 1998-11-25 Dsm Nv Werkwijze voor het bereiden van melamine.
JP2002500664A (ja) 1997-05-28 2002-01-08 ディーエスエム エヌ．ブイ． メラミンの製造法
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.
JP2002502416A (ja) * 1997-06-02 2002-01-22 ディーエスエム エヌ．ブイ． メラミンの製造法
CA2291627C (en) * 1997-06-02 2008-12-09 Dsm N.V. Crystalline melamine
NL1006191C2 (nl) * 1997-06-02 1998-12-03 Dsm Nv Kristallijn melamine.
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.
AU758664B2 (en) 1998-12-23 2003-03-27 Agrolinz Melamin Gmbh Method for purifying melamine
AU6697600A (en) * 1999-07-27 2001-02-13 Agrolinz Melamin Gmbh Method for producing solid melamine
RU2417992C2 (ru) * 2009-07-20 2011-05-10 Открытое акционерное общество "Научно-исследовательский и проектный институт карбамида и продуктов органического синтеза" (ОАО "НИИК") Способ получения меламина и способ удаления растворенных газов из водного раствора неочищенного меламина

Family Cites Families (3)

* 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
GB1003277A (en) * 1963-07-10 1965-09-02 Nissan Chemical Ind Ltd Process and apparatus for the production and separation of melamine
DE2522233A1 (de) * 1975-05-20 1976-12-02 Bollmann L Kg Maschine zum stapeln von flaechigen gegenstaenden, insbesondere brettern

Also Published As

Publication number Publication date
HRP950605B1 (en) 1999-12-31
ATA239394A (de) 1996-08-15
RU2161610C2 (ru) 2001-01-10
HRP950605A2 (en) 1997-10-31
EP0799213A1 (de) 1997-10-08
PL320790A1 (en) 1997-10-27
KR100374731B1 (ko) 2003-06-09
JPH10511369A (ja) 1998-11-04
NZ298044A (en) 1999-07-29
DK0799213T3 (da) 1999-08-02
AT402295B (de) 1997-03-25
CN1171103A (zh) 1998-01-21
IL116516A0 (en) 1996-03-31
CN1068315C (zh) 2001-07-11
PL187434B1 (pl) 2004-07-30
TW299324B (es) 1997-03-01
ATE173474T1 (de) 1998-12-15
IL116516A (en) 2000-07-16
EP0799213B1 (de) 1998-11-18
DE59504292D1 (de) 1998-12-24
BR9510606A (pt) 1999-02-23
WO1996020183A1 (de) 1996-07-04
RO115521B1 (ro) 2000-03-30

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