Author/Authors :
Bassan، نويسنده , , Iria A.L. and Nascimento، نويسنده , , Danielle R. and San Gil، نويسنده , , Rosane A.S. and da Silva، نويسنده , , Maria I. Pais and Moreira، نويسنده , , Carla R. and Gonzalez، نويسنده , , Wilma A. and Faro Jr.، نويسنده , , Arnaldo C. and Onfroy، نويسنده , , Thomas and Lachter، نويسنده , , Elizabeth R.، نويسنده ,
Abstract :
The aim of this study is the evaluation of niobium catalysts (niobic acid, niobium phosphate) in the esterification reactions of fatty acids (C12–C18) with alcohols (methanol, ethanol, butanol). The catalysts were characterized by different techniques (N2 adsorption/desorption, XRD, FTIR, FTIR of adsorbed pyridine). The niobium phosphate was the most active in esterification of lauric acid with butanol and can be reutilized three times without loss of activity.
Keywords :
Esterification , Niobium phosphate , fatty acids , niobium
