Artículos de revistas
H3PW12O40 (HPA), an Efficient and Reusable Catalyst for Biodiesel Production Related Reactions. Esterification of Oleic Acid and Etherification of Glycerol
Fecha
2011-03Registro en:
Sepulveda Flores, Jorge Humberto; Vera, Carlos Roman; Yori, Juan Carlos; Badano, Juan Manuel; Santarosa, Daniel; et al.; H3PW12O40 (HPA), an Efficient and Reusable Catalyst for Biodiesel Production Related Reactions. Esterification of Oleic Acid and Etherification of Glycerol; Sociedade Brasileira de Química; Química Nova; 34; 4; 3-2011; 601-606
0100-4042
1678-7064
CONICET Digital
CONICET
Autor
Sepulveda Flores, Jorge Humberto
Vera, Carlos Roman
Yori, Juan Carlos
Badano, Juan Manuel
Santarosa, Daniel
Mandelli, Dalmo
Resumen
In esterification of oleic acid with methanol at 25 °C HPA displayed the highest activity. Moreover the HPA could be reused after being transformed into its cesium salt. In the reaction of etherification of glycerol HPA and Amberlyst 35W showed similar initial activity levels. The results of acid properties demonstrate that HPA is a strong protonic acid and that both surface and bulk protons contribute to the acidity. Because of its strong affinity for polar compounds, HPA is also seemingly dissolved in both oleic acid and methanol. The reaction in this case proceeds with the catalyst in the homogenous phase.