METHODS AND CATALYSTS FOR GREEN BIODIESEL PRODUCTION FROM UNREFINED LOW GRADE FEEDSTOCK

摘要

This invention provides a catalyst comprising a new form of ZnFe2O4 spinel nanoparticles, and a method for preparing same. The catalyst is useful for catalyzing the esterification of fatty acids or transesterification of triglycerides, wherein the reaction rate and conversion can be enhanced by free fatty acids.