应用化学2018，Vol.35Issue(5)：559-563,5.DOI:10.11944/j.issn.1000-0518.2018.05.170154
La和KF改性Y型分子筛催化丙烯醛二乙缩醛/氨合成吡啶和3-甲基吡啶
Synthesis of Pyridine and 3-Picoline from Acrolein Diethyl Acetal and Ammonia over La-and KF-modified Y Type Zeolite Catalysts
摘要
Abstract
The synthesis of pyridine and 3-picoline from the reaction of acrolein diethyl acetal,water and ammonia was conducted in a fixed-bed reactor.The catalytic activities of La-and KF-modified Y zeolites were compared.Various influencing parameters,including the loadings and modified ways of La species,the loadings of KF and the calcination temperature of KF/Y,were systematically investigated.Compared to pure Y zeolite,La-and KF-modifications can enhance the catalytic activities.The catalytic activity of La-modified Y through ion exchange is better than that of the sample through wet impregnation.The total yield of pyridine and 3-picoline reaches the maximum while the loading of La via the wet-impregnation method is 1％mass fraction and the calcination temperature of KF/Y is 700 ℃.关键词
缩醛/甲基吡啶/吡啶/La-Y/KF/YKey words
acetal/picoline/pyridine/La-Y/KF/Y zeolite分类
化学化工引用本文复制引用
罗才武,赵勇,蒋复量,李向阳,晁自胜..La和KF改性Y型分子筛催化丙烯醛二乙缩醛/氨合成吡啶和3-甲基吡啶[J].应用化学,2018,35(5):559-563,5.基金项目
国家自然科学基金(21376068) （21376068）
南华大学博士科研启动基金(2016XQD36) （2016XQD36）
湖南省教育厅科学研究项目(17C1361)资助 Supported by the National Natural Science Foundation of China (No.21376068),the Educational Commission of Hunan Province (No.17C1361),the Doctoral Scientific Research Foundation of University of South China(No.2016XQD36) （17C1361）
