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Kinetics of transesterification of methyl acetate and n - butanol catalyzed by ionic liquid / Xianbao Cui in Industrial & engineering chemistry research, Vol. 50 N° 20 (Octobre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 20 (Octobre 2011) . - pp. 11521-11527 Titre : Kinetics of transesterification of methyl acetate and n - butanol catalyzed by ionic liquid Type de document : texte imprimé Auteurs : Xianbao Cui, Auteur ; Jialin Cai, Auteur ; Ying Zhang, Auteur Année de publication : 2011 Article en page(s) : pp. 11521-11527 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Ionic  liquid  Catalytic  reaction  Transesterification  Kinetics Résumé : The kinetic behavior and chemical equilibrium of the transesterification of methyl acetate with n-butanol catalyzed by an ionic liquid were investigated. The effects of reaction temperature, initial reactant molar ratio, and catalyst concentration on the reaction rate were studied. A reaction mechanism for transesterification catalyzed by ionic liquid is proposed based on Brønsted theory. Two different kinetic models, the ideal homogeneous (IH) model and the nonideal homogeneous (NIH) model, were used to correlate the kinetic data. The NIH model was able to describe the reaction rate reliably. The ionic liquid catalyst was compared with the conventional inorganic acid and ion-exchange resin catalysts sulfuric acid and Amberlyst 15, and it was found to be more active than the two conventional catalysts. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24612374 [article] Kinetics of transesterification of methyl acetate and n - butanol catalyzed by ionic liquid [texte imprimé] / Xianbao Cui, Auteur ; Jialin Cai, Auteur ; Ying Zhang, Auteur . - 2011 . - pp. 11521-11527. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 20 (Octobre 2011) . - pp. 11521-11527 Mots-clés : Ionic  liquid  Catalytic  reaction  Transesterification  Kinetics Résumé : The kinetic behavior and chemical equilibrium of the transesterification of methyl acetate with n-butanol catalyzed by an ionic liquid were investigated. The effects of reaction temperature, initial reactant molar ratio, and catalyst concentration on the reaction rate were studied. A reaction mechanism for transesterification catalyzed by ionic liquid is proposed based on Brønsted theory. Two different kinetic models, the ideal homogeneous (IH) model and the nonideal homogeneous (NIH) model, were used to correlate the kinetic data. The NIH model was able to describe the reaction rate reliably. The ionic liquid catalyst was compared with the conventional inorganic acid and ion-exchange resin catalysts sulfuric acid and Amberlyst 15, and it was found to be more active than the two conventional catalysts. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24612374