Effect of the Acid Treatment of Montmorillonite Clay in the Oleic Acid Esterification Reaction

Biodiesel is a fuel renewable, biodegradable and environmentally correct fuel, which can be obtained from the esterification reactions, transesterification and pyrolisis. Montmorillonite is a clay mineral of the smectite group and are of great interest for industrial processes such as catalysis and adsorption. Acid activation of clay minerals is one of the most effective methods proposed to produce active materials. In this work, montmorillonite clay was treated with H2SO4 in different concentrations (0.2 – 0.8 mol L–1), characterized by X-ray diffraction (XRD), infrared spectroscopy (FT-IR) and applied in the catalytic esterification of oleic acid. The results reveal that the clay treated with aqueous solutions 0.8 mol L–1 H2SO4 shows promising catalytic activity toward the studied reaction, with maximum conversion of oleic acid of 65% at 30 °C.

Bibliographic Details

Main Authors:	Nascimento,Alexsandra Rodrigues do, Alves,José Antônio Barros Leal Reis, Melo,Marcus Antônio de Freitas, Melo,Dulce Maria de Araújo, Souza,Marcelo José Barros de, Pedrosa,Anne Michelle Garrido
Format:	Digital revista
Language:	English
Published:	ABM, ABC, ABPol 2015
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000200283
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