FR2852011B1 - Procede de fabrication de la melamine a partir de l'acide cyanurique et application a la purification de la melamine contenant de l'acide cyanurique comme impurete - Google Patents

Procede de fabrication de la melamine a partir de l'acide cyanurique et application a la purification de la melamine contenant de l'acide cyanurique comme impurete

Info

Publication number
FR2852011B1
FR2852011B1 FR0302834A FR0302834A FR2852011B1 FR 2852011 B1 FR2852011 B1 FR 2852011B1 FR 0302834 A FR0302834 A FR 0302834A FR 0302834 A FR0302834 A FR 0302834A FR 2852011 B1 FR2852011 B1 FR 2852011B1
Authority
FR
France
Prior art keywords
melamine
cyanuric acid
impurity
purification
production
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 - Fee Related
Application number
FR0302834A
Other languages
English (en)
Other versions
FR2852011A1 (fr
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 filed Critical
Priority to FR0302834A priority Critical patent/FR2852011B1/fr
Publication of FR2852011A1 publication Critical patent/FR2852011A1/fr
Application granted granted Critical
Publication of FR2852011B1 publication Critical patent/FR2852011B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C07D251/56—Preparation 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
FR0302834A 2003-03-07 2003-03-07 Procede de fabrication de la melamine a partir de l'acide cyanurique et application a la purification de la melamine contenant de l'acide cyanurique comme impurete Expired - Fee Related FR2852011B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0302834A FR2852011B1 (fr) 2003-03-07 2003-03-07 Procede de fabrication de la melamine a partir de l'acide cyanurique et application a la purification de la melamine contenant de l'acide cyanurique comme impurete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0302834A FR2852011B1 (fr) 2003-03-07 2003-03-07 Procede de fabrication de la melamine a partir de l'acide cyanurique et application a la purification de la melamine contenant de l'acide cyanurique comme impurete

Publications (2)

Publication Number Publication Date
FR2852011A1 FR2852011A1 (fr) 2004-09-10
FR2852011B1 true FR2852011B1 (fr) 2006-07-07

Family

ID=32865327

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0302834A Expired - Fee Related FR2852011B1 (fr) 2003-03-07 2003-03-07 Procede de fabrication de la melamine a partir de l'acide cyanurique et application a la purification de la melamine contenant de l'acide cyanurique comme impurete

Country Status (1)

Country Link
FR (1) FR2852011B1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112312A (en) * 1963-11-26 Melamine synthesis
GB718934A (en) * 1952-01-17 1954-11-24 American Cyanamid Co Improvements relating to the preparation of cyanamide and cyanamide polymers from urea
GB806153A (en) * 1955-03-16 1958-12-17 Shinetsu Chem Ind Co Improvements in or relating to the production of melamine
AT256117B (de) * 1963-04-04 1967-08-10 Chemie Linz Ag Verfahren zur katalytischen Herstellung von Melamin aus gasförmiger Cyansäure
DE1812120C3 (de) * 1968-12-02 1974-02-28 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von Melamin
EP1188751A1 (fr) * 2000-09-13 2002-03-20 Casale Chemicals SA Procédé de production de mélamine très pure à partir d'urée

Also Published As

Publication number Publication date
FR2852011A1 (fr) 2004-09-10

Similar Documents

Publication Publication Date Title
BR0308385A (pt) Cristais de ácido (met) acrìlico e processo para produzir e purificar ácido (met) acrìlico aquoso
FR2884818B1 (fr) Procede de preparation d'acide acrylique a partir de glycerol
MA28516B1 (fr) Procede et installation de production d'acide sulfurique
FR2885903B1 (fr) Procede de fabrication d'epichlorhydrine
ITMI20010773A0 (it) Processo per la produzione di ioexolo ad elevata purezza
FR2846964B1 (fr) Procede de fabrication de 1,2-epoxy-3-chloropropane
MA25793A1 (fr) Matieres et methode pour la production biologique de l'acide sulfurique
FR2831171B1 (fr) Procede de preparation d'acide poly-ou copoly-glucuronique
FR2826964B1 (fr) Procede de fabrication de (meth) acrylates silanes
FR2832213B1 (fr) Procede et installation de production d'helium
CA2347853A1 (fr) Processus de racemisation de [2-(2-thyenyl)ethylamino](2-halogenophenyl)acetamides
PT1403264E (pt) Processo de sintese industrial do diester metilico do acido 5-amino-3-carboximetil-4-ciano-2-tiofenocarboxilico
MA28704B1 (fr) Procede de production d'acide phosphorique
FR2791673B1 (fr) Procede de preparation des esters de l'acide hydroxymethylthiobutyrique
FR2853900B1 (fr) Procede de fabrication de l'anhydride isobutyrique
FR2774379B1 (fr) Procede de production, par des cellules vegetales, d'alpha 1-antitrypsine et de ses variantes, et produits contenant l'alpha-antitrypsine ainsi obtenue
FR2789399B1 (fr) Procede de fabrication d'extraits de micro-organismes photosynthetiques tels que notamment de spiruline
FR2852011B1 (fr) Procede de fabrication de la melamine a partir de l'acide cyanurique et application a la purification de la melamine contenant de l'acide cyanurique comme impurete
FR2829134B1 (fr) Procede de preparation de (meth) acrylates d'alkylimidazolidone
WO2004075860A3 (fr) Procede de purification de l'acide zoledronique
ITMI20002187A0 (it) Processo per la produzione dell'acido r(+) -lipico
ITMI20002186A0 (it) Processo per la produzione dell'acido tiottico racemo
FR2867186B1 (fr) Procede de fabrication d'elements de construction incorporant des boues d'epuration
FR2827294B1 (fr) Procede discontinu de fabrication d'un polyamide
FR2837814B1 (fr) Procede de traitement de boues de stations d'epuration

Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20101130