AR060444A1 - IMPROVED PROCEDURE FOR MELAMINE PRODUCTION WITH GREATER PERFORMANCE - Google Patents

IMPROVED PROCEDURE FOR MELAMINE PRODUCTION WITH GREATER PERFORMANCE

Info

Publication number
AR060444A1
AR060444A1 ARP070101575A ARP070101575A AR060444A1 AR 060444 A1 AR060444 A1 AR 060444A1 AR P070101575 A ARP070101575 A AR P070101575A AR P070101575 A ARP070101575 A AR P070101575A AR 060444 A1 AR060444 A1 AR 060444A1
Authority
AR
Argentina
Prior art keywords
melamine
improved procedure
greater performance
melamine production
permeate
Prior art date
Application number
ARP070101575A
Other languages
Spanish (es)
Inventor
Sergio Noe
Roberto Santucci
Original Assignee
Eurotecnica Melamine Luxembour
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 Eurotecnica Melamine Luxembour filed Critical Eurotecnica Melamine Luxembour
Publication of AR060444A1 publication Critical patent/AR060444A1/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

Se describe un procedimiento para recuperar melamina del líquido madre de cristalizacion, tanto la melamina de saturacion residual como oxiaminotriazinas (OAT), que comprende una ultrafiltracion del líquido madre de lavado para separar las OAT en estado coloidal del líquido madre que las contiene, dicha ultrafiltracion produce un permeado y un retenido en solucion acuosa, el permeado con un menor contenido de OAT es reciclado a la etapa de preparacion de la solucion acuosa de melamina cruda, y dicho procedimiento se caracteriza porque el retenido es reciclado en el reactor de síntesis.A method is described for recovering melamine from the crystallization mother liquor, both the residual saturation melamine and oxiaminotriazines (OAT), which comprises ultrafiltration of the washing mother liquid to separate the OATs in colloidal state from the mother liquid containing them, said ultrafiltration produces a permeate and retained in aqueous solution, the permeate with a lower OAT content is recycled to the preparation stage of the aqueous solution of raw melamine, and said procedure is characterized in that the retained is recycled in the synthesis reactor.

ARP070101575A 2006-04-14 2007-04-13 IMPROVED PROCEDURE FOR MELAMINE PRODUCTION WITH GREATER PERFORMANCE AR060444A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI20060759 ITMI20060759A1 (en) 2006-04-14 2006-04-14 IMPROVED PROCESS FOR THE PRODUCTION OF MELAMINE WITH INCREASE OF YIELD

Publications (1)

Publication Number Publication Date
AR060444A1 true AR060444A1 (en) 2008-06-18

Family

ID=37334154

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP070101575A AR060444A1 (en) 2006-04-14 2007-04-13 IMPROVED PROCEDURE FOR MELAMINE PRODUCTION WITH GREATER PERFORMANCE

Country Status (4)

Country Link
AR (1) AR060444A1 (en)
IT (1) ITMI20060759A1 (en)
TW (1) TW200745064A (en)
WO (1) WO2007119156A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20071363A1 (en) * 2007-07-09 2009-01-10 Eurotecnica Melamine Luxembour IMPROVED PROCESS FOR RETENTED TREATMENT IN A MELAMINE PRODUCTION PLANT
EP2308856A1 (en) * 2009-10-09 2011-04-13 Borealis Agrolinz Melamine GmbH Water recycling in a melamine production process
ITUB20152258A1 (en) * 2015-07-17 2017-01-17 Eurotecnica Melamine Luxemburg Zweigniederlassung In Ittigen Process for the production of melamine with separation and recovery of high purity CO2 and NH3

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1315265B1 (en) * 1999-12-22 2003-02-03 Eurotecnica Dev And Licensing PROCESS FOR THE PRODUCTION WITH OTHER HIGH-PURITY MELAMINE YIELDS
ITMI20011216A1 (en) * 2001-06-08 2002-12-08 Eurotecnica Dev And Licensing IMPROVED PROCEDURE FOR THE PRODUCTION WITH HIGH MELANINE YIELDS

Also Published As

Publication number Publication date
TW200745064A (en) 2007-12-16
WO2007119156A8 (en) 2008-04-03
ITMI20060759A1 (en) 2007-10-15
WO2007119156A2 (en) 2007-10-25
WO2007119156A3 (en) 2007-12-21

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Legal Events

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FA Abandonment or withdrawal