Direct esterification of olive-pomace oil using mesoporous silica supported sulfonic acids
Mesoporous silica MCM-41 and SBA-15 containing propyl sulfonic acid groups were synthesized according to the literature and were characterized by X-ray diffraction, N2 adsorption and the H+ exchange capacities of the sulfonic acid groups were titrated.The esterification reaction of glycerol with olive-pomace oil has been carried out by using prepar