【作者】 曹小华； 徐常龙； 严平； 占昌朝；

【Author】 Cao Xiaohua 1,2* ,Xu Changlong 1 ,Yan Ping 1,2 ,Zhan Changchao 1,2 (1.College of Chemistry and Environmental Engineering,Jiujiang University,Jiujiang 332005, Jiangxi,China; 2.Jiangxi Province Research Center for Poyang Lake′s Economy and Ecology,Jiujiang 332005,China)

【机构】 九江学院化学与环境工程学院； 鄱阳湖生态经济研究中心；

【摘要】 <正>通过浸渍法制备了活性碳负载Dawson结构磷钨酸镧催化剂(La2P2W18O62·nH2O/C),采用FT-IR、SEM、XRD表征了催化剂结构。以1,4-丁二醇为原料催化合成了四氢呋喃,考察了催化剂用量、反应温度、反应时更多还原

【Abstract】 Lanthanum phosphotungstate with Dawson structure supported on activated carbon was prepared by impregnation method and characterized by FT-IR、XRD and SEM. The catalytic performance was studied in the catalytic synthesis of tetrahydrofuran from 1,4-butanediol. Effects of catalyst dosage, reaction time, reaction temperature and repeated times of catalyst on the yield of tetrahydrofuran were investigated. The results show that under the optimal condition, i.e. w (catalyst) = 3.9%(relative to the dosage of 1,4-butanediol), reaction temperature of 185℃ and reaction time of 40 min, the yield of tetrahydrofuran reached 94.9%. The activity of (La2P2W18O62·nH2O//C catalyst remained basically unchanged after five runs and the yield of tetrahydrofuran was still above 91.3%.更多还原