title: Influence of two different alcohols in the esterification of fatty acids over layered zinc stearate/palmitate.
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.
authors.affiliation: CEPESQ - Research Center in Applied Chemistry, Department of Chemistry, Universidade Federal do Paraná, P.O. Box 19032, Curitiba, PR 81531-980, Brazil; Department of Chemical Engineering, Universidade Federal do Paraná, Curitiba, PR 81531-980, Brazil; Åbo Akademi University, Johan Gadolin Process Chemistry Centre, Laboratory of Industrial Chemistry and Reaction Engineering, FI-20500 Turku/Åbo, Finland.
authors.forename: Eduardo José Mendes
authors.initials: EJ
authors.lastname: de Paiva
authors.affiliation: CEPESQ - Research Center in Applied Chemistry, Department of Chemistry, Universidade Federal do Paraná, P.O. Box 19032, Curitiba, PR 81531-980, Brazil; Department of Chemical Engineering, Universidade Federal do Paraná, Curitiba, PR 81531-980, Brazil.
authors.forename: Marcos Lúcio
authors.initials: ML
authors.lastname: Corazza
authors.affiliation: CEPESQ - Research Center in Applied Chemistry, Department of Chemistry, Universidade Federal do Paraná, P.O. Box 19032, Curitiba, PR 81531-980, Brazil.
authors.forename: Maria Rita
authors.initials: MR
authors.lastname: Sierakowski
authors.affiliation: Åbo Akademi University, Johan Gadolin Process Chemistry Centre, Laboratory of Industrial Chemistry and Reaction Engineering, FI-20500 Turku/Åbo, Finland.
authors.forename: Johan
authors.initials: J
authors.lastname: Wärnå
authors.affiliation: Åbo Akademi University, Johan Gadolin Process Chemistry Centre, Laboratory of Industrial Chemistry and Reaction Engineering, FI-20500 Turku/Åbo, Finland.
authors.forename: Dmitry Yu
authors.initials: DY
authors.lastname: Murzin
authors.affiliation: CEPESQ - Research Center in Applied Chemistry, Department of Chemistry, Universidade Federal do Paraná, P.O. Box 19032, Curitiba, PR 81531-980, Brazil. Electronic address: wypych@ufpr.br.
authors.forename: Fernando
authors.initials: F
authors.lastname: Wypych
authors.affiliation: Åbo Akademi University, Johan Gadolin Process Chemistry Centre, Laboratory of Industrial Chemistry and Reaction Engineering, FI-20500 Turku/Åbo, Finland.
authors.forename: Tapio
authors.initials: T
authors.lastname: Salmi
mesh_terms: D020001:1-Butanol / Q000494:pharmacology*; D055162:Biocatalysis / Q000187:drug effects; D019149:Bioreactors; D004951:Esterification / Q000187:drug effects; D005227:Fatty Acids / Q000378:metabolism*; D000441:Hexanols / Q000494:pharmacology*; D007700:Kinetics; D008962:Models, Theoretical; D019301:Oleic Acid / Q000494:pharmacology; D010168:Palmitates / Q000494:pharmacology*; D015203:Reproducibility of Results; D013229:Stearic Acids / Q000494:pharmacology*; D013696:Temperature
chemical_list: D005227:Fatty Acids; D000441:Hexanols; D010168:Palmitates; D013229:Stearic Acids; D019301:Oleic Acid; C031183:stearic acid; C036260:1-hexanol; D020001:1-Butanol
keywords: 1-Butanol; Esterification; Oleic acid; Quasi-homogeneous; Zinc carboxylates