The transesterification of wild Jatropha curcas L. seed oil, which had been degumed, deacidified and dewatered, by means of ultrasonic ,was studied. By using 25 kHz ultrasonic, the conversion rate of transesterification reached 93.79% in 60 min ,while the reaction conditions were as follows： reaction temperature 65 ℃, catalyst concentration 1.0% and methanol/oil molar ratio 7： 1. Compared with normal transesterification, the ultrasonic-aided reaction showed hig...
