Influence of two different alcohols in the esterification of fatty acids over layered zinc stearate/palmitate

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Eduardo José Mendes de Paiva, Marcos Lúcio Corazza, Maria Rita Sierakowski, Johan Wärnå, Dmitry Yu. Murzin, Fernando Wypych, Tapio Salmi
Publication year: 2015
Journal: Bioresource Technology
Volume number: 193
Start page: 337
End page: 344
eISSN: 1873-2976


Abstract

In this work, esterification of fatty acids (oleic, linoleic and stearic acid) with a commercial zinc carboxylate (a layered compound formed by simultaneous intercalation of stearate and palmitate anions) was performed. Kinetic modeling using a quasi-homogeneous approach successfully fitted experimental data at different molar ratio of fatty acids/alcohols (1-butanol and 1-hexanol) and temperature. An apparent first-order reaction related to all reactants was found and activation energy of 66 kJ/mol was reported. The catalyst showed to be unique, as it can be easily recovered like a heterogeneous catalysts behaving like ionic liquids. In addition, this catalyst demonstrated a peculiar behavior, because higher reactivity was observed with the increase in the alcohols chain length compared to the authors’ previous work using ethanol.

Last updated on 2019-17-11 at 03:08