BRPI0517278A - método para o tratamento de água contendo triazina, de uma planta industrial de melamina - Google Patents

método para o tratamento de água contendo triazina, de uma planta industrial de melamina

Info

Publication number
BRPI0517278A
BRPI0517278A BRPI0517278-0A BRPI0517278A BRPI0517278A BR PI0517278 A BRPI0517278 A BR PI0517278A BR PI0517278 A BRPI0517278 A BR PI0517278A BR PI0517278 A BRPI0517278 A BR PI0517278A
Authority
BR
Brazil
Prior art keywords
triazine
ionic
rich fraction
melamine
water
Prior art date
Application number
BRPI0517278-0A
Other languages
English (en)
Inventor
Paul Toplack
Peter Weiss
Hartmut Bucka
Original Assignee
Ami Agrolinz Melamine Int 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 Int Gmbh filed Critical Ami Agrolinz Melamine Int Gmbh
Publication of BRPI0517278A publication Critical patent/BRPI0517278A/pt

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
    • 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)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Fertilizers (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

MéTODO PARA O TRATAMENTO DE áGUA CONTENDO TRIAZINA, DE UMA PLANTA INDUSTRIAL DE MELAMINA. A presente invenção refere-se a um método para o tratamento de água contendo triazina, de uma planta industrial de melamina. O dito método é caracterizado pelo fato de que a água contendo triazinas iónicas e não-iónicas em formas dissociadas é alimentada a, pelo menos, uma unidade de filtração por membrana (MF); a água é separada em frações ricas em triazinas iónicas e não-iónicas na unidade de filtração por membrana (MF), em que a fração rica em triazina iónica é descarregada e a fração rica em triazina não-lónica é redirecionada à planta industrial de melamina. O método inventivo permite que grandes porções de melamina contidas na água contendo triazina sejam redirecionadas para o processo, enquanto que o rendimento aumenta ao longo de todo o processo de melamina. Além disso, há uma diminuição da necessidade por água fresca na parte úmida da planta industrial de melamina. O método descrito pode ser efetuado continuamente e em fase liquida.
BRPI0517278-0A 2004-10-20 2005-10-19 método para o tratamento de água contendo triazina, de uma planta industrial de melamina BRPI0517278A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004051432A DE102004051432A1 (de) 2004-10-20 2004-10-20 Verfahren zur Behandlung von triazinhaltigem Wasser einer Melaminanlage
PCT/EP2005/011373 WO2006042760A1 (de) 2004-10-20 2005-10-19 Verfahren zur behandlung von triazinhaltigem wasser einer melaminanlage

Publications (1)

Publication Number Publication Date
BRPI0517278A true BRPI0517278A (pt) 2008-10-07

Family

ID=35478450

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0517278-0A BRPI0517278A (pt) 2004-10-20 2005-10-19 método para o tratamento de água contendo triazina, de uma planta industrial de melamina

Country Status (11)

Country Link
US (1) US7723516B2 (pt)
EP (1) EP1805151B1 (pt)
KR (1) KR20070083614A (pt)
CN (1) CN101044124B (pt)
AT (1) ATE381548T1 (pt)
AU (1) AU2005296778A1 (pt)
BR (1) BRPI0517278A (pt)
DE (2) DE102004051432A1 (pt)
PL (1) PL1805151T3 (pt)
RU (1) RU2382035C2 (pt)
WO (1) WO2006042760A1 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2308856A1 (en) 2009-10-09 2011-04-13 Borealis Agrolinz Melamine GmbH Water recycling in a melamine production process
CN102515384A (zh) * 2011-11-24 2012-06-27 重庆锐致环保科技有限公司 密胺树脂生产废水资源化技术
EP3272743A1 (en) 2016-07-22 2018-01-24 Casale SA Process for melamine purification
WO2023104580A1 (en) 2021-12-09 2023-06-15 Basf Se Process for treating triazine-containing wastewater

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1930844U (de) * 1965-10-09 1966-01-13 Sihn Kg Wilhelm Jun Plombe fuer antennensteckdose.
US3423411A (en) * 1965-10-22 1969-01-21 Montedison Spa Purification of melamine solutions
US3496176A (en) * 1968-06-19 1970-02-17 Allied Chem Melamine purification
IT1282369B1 (it) 1996-01-26 1998-03-20 Eurotecnica Contractors And En Processo per la purificazione delle acque di scarico di impianti di produzione di melamina
EP1054006A1 (en) * 1999-05-20 2000-11-22 Dsm N.V. Method for preparing melamine
IT1315265B1 (it) * 1999-12-22 2003-02-03 Eurotecnica Dev And Licensing Processo per la produzione con altre rese di melammina ad elevatapurezza
ITMI20011216A1 (it) 2001-06-08 2002-12-08 Eurotecnica Dev And Licensing Procedimento migliorato per la produzione con alte rese di melanina

Also Published As

Publication number Publication date
WO2006042760A1 (de) 2006-04-27
AU2005296778A1 (en) 2006-04-27
ATE381548T1 (de) 2008-01-15
US20090062535A1 (en) 2009-03-05
DE102004051432A1 (de) 2006-04-27
EP1805151A1 (de) 2007-07-11
RU2382035C2 (ru) 2010-02-20
CN101044124B (zh) 2010-10-06
RU2007111314A (ru) 2008-11-27
EP1805151B1 (de) 2007-12-19
US7723516B2 (en) 2010-05-25
KR20070083614A (ko) 2007-08-24
DE502005002322D1 (de) 2008-01-31
CN101044124A (zh) 2007-09-26
PL1805151T3 (pl) 2008-05-30

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE AS 5A E 6A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2160 DE 29/05/2012.