Y_2P_2W_(18)O_(62)催化1,4-丁二醇液相脱水环化合成四氢呋喃  

Cyclodehydration of 1,4-butanediol to tetrahydrofuran catalyzed by Y_2P_2W_(18)O_(62)

作　　者：徐常龙[1] 曹小华[1] 雷艳虹[1] 谢宝华[1] 占昌朝[1] 蓝珍珍[1] 

机构地区：[1]九江学院化学与环境工程学院,江西九江332005

出　　处：《华中师范大学学报（自然科学版）》2014年第2期210-212,共3页Journal of Central China Normal University：Natural Sciences

基　　金：国家自然科学基金项目(21161009);江西省自然科学基金项目(20132BAB203004;20122BAB213001);江西省教育厅科技项目(GJJ13723);九江学院科技资助项目(2013KJ005)

摘　　要：通过浸渍法制备了Y2P2W18O62催化剂,并用于催化1,4-丁二醇脱水制备四氢呋喃.考察了催化剂用量、反应时间、反应温度等因素对四氢呋喃收率的影响,结果表明在优化反应条件下：w（催化剂）=2.9％（相对1,4丁二醇质量）,反应温度为185～195℃,反应时间为45 min,四氢呋喃平均收率为98.1％,催化剂重复使用4次,四氢呋喃收率仍可达98.0％.Y2P2W18O62 was prepared by impregnation method and used for the catalytic synthesis of tetrahydrofuran from 1,4-butanediol.The influences of catalysts dosage,reaction time and reaction temperature on yield of tetrahydrofuran were studied.The results show that the optimal reaction condition are as follow,the mass ratio of 1,4-butanediol to catalyst 100 ∶ 2.9,reaction temperature 185～195 ℃ and reaction time 45min.Under such conditions,the yield of tetrahydrofuran reached 98.1％.The catalyst could be reused for 4 times and the yield was still above 98.0％.

关 键 词：Y2P2W18O62 1 4-丁二醇 四氢呋喃 环化脱水 

分 类 号：TQ426.6[化学工程]