Using a magnetic Zr-CMC-SO3H@3Fe-C400 catalyst, the group of FANG Zhen has prepared biodiesel via esterification or transesterification from high AV oils such as Jatropha oil in yields of 95 – 97 % when the reaction was done in several cycles over the solid catalyst followed by its magnetic separation and regeneration.
CAS news release, September 22, 2017
CAS Xishuangbanna Tropical Botanical Garden: high yields of biodiesel from raw oils with high acid value using magnetic solid acid catalysts