Synthesis of porous CaO microsphere and its application incatalyzing transesterification reaction for biodiesel
来源期刊：中国有色金属学报(英文版)2009年增刊第3期
论文作者：白海鑫 沈晓真 刘小花 刘圣勇
文章页码：674 - 677
Key words：porous CaO microsphere; transesterification; catalysis; biodiesel
Abstract: It is hoped to develop a simple and low cost route for preparing the CaO with a novel morphology which can present high catalytic activity in catalyzing transesterification reaction for biodiesel. The porous CaO microsphere was synthesized by calcining spherical CaCO3 precursor which was prepared easily by mixing CaCl2 with Na2CO3. The as-prepared CaO microsphere was characterized by scanning electronic microscopy(SEM), powder X-ray diffractometry(XRD) and N2 adsorption experiment. The results reveal that the synthesized CaO is regular microsphere with many pores in its exterior and interior. The CaO microsphere is applied in catalyzing the transesterification reaction of soybean oil for biodiesel and presents excellent catalytic ability with a transesterification yield of 98.72%. This catalyst could have potential applications in other fields in view of its well-defined morphology, simply synthetic route and low cost.
基金信息：China Postdoctoral Science Foundation
Scientific Research Foundation for Doctors in Henan Agricultural University, China
the National Natural Science Foundation of China
Chinese Academy of Sciences
