文献类型：期刊文献

英文题名：Preparation and characterization of fluorine modified oxides for transesterification

作者：Sun, Jian[1];Yang, Jingyi[1];Li, Shaoping[1];Xu, Xinru[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2015

卷号：59

起止页码：88

外文期刊名：CATALYSIS COMMUNICATIONS

收录：;EI(收录号：20144500178846);WOS:【SCI-EXPANDED(收录号:WOS:000347499200019)】；

语种：英文

外文关键词：Solid base; Fluoride; Transesterification; Biodiesel

摘要：KF supported Mg3Al and Mg(3)AI(0.6)La(0.4) oxides were respectively synthesized by wet impregnation. The catalyst samples were characterized by BET, ICP-AES, XRD, XPS and CO2-TPD. The results exhibited that the decomposition of KF modified hydrotalcites resulted in fluoride impregnated oxides. The basicity of KF supported oxides Was improved due to the alkaline fluoride compounds. The catalysts were tested in the transesterification of waste cooking oil and methanol. A FAME yield (98.9%) was observed with a methanol to oil molar ratio of 12:1 and 3 wt% catalyst amount in 8 h at 338 K. (C) 2014 Elsevier B.V. All rights reserved.