The esterification reaction was carried out with a methanol to oil molar ratio of 6:1, catalyst (sulfuric acid (3 wt%)) and ultrasonic irradiation time of 30 min at room temperature (30 C).
The esterification reaction was carried out with a methanol tooil molar ratio of 6:1, catalyst (sulfuric acid (3 wt%)) and ultrasonicirradiation time of 30 min at room temperature (30 C).