催化学报

催化学报 ›› 2012, Vol. 33 ›› Issue (12): 1871-1876.DOI: 10.1016/S1872-2067(11)60473-7

• 研究快讯 • 上一篇    下一篇

温控相分离纳米 Rh 催化 1,5-环辛二烯选择性加氢反应

徐贻成, 王艳华*, 曾艳, 宋颖, 赵家骐, 蒋景阳, 金子林   

  1. 大连理工大学精细化工国家重点实验室, 辽宁大连 116024
  • 收稿日期:2012-09-27 修回日期:2012-10-29 出版日期:2013-01-18 发布日期:2012-12-18

Thermoregulated phase-separable catalysis for Rh nanoparticle catalyzed selective hydrogenation of 1,5-cyclooctadiene

XU Yicheng, WANG Yanhua*, ZENG Yan, SONG Ying, ZHAO Jiaqi, JIANG Jingyang, JIN Zilin   

  1. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, Liaoning, China
  • Received:2012-09-27 Revised:2012-10-29 Online:2013-01-18 Published:2012-12-18

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844

被引次数

14

摘要： 发现离子液体 [CH3(OCH2CH2)nN+Et3][CH3SO3–] (ILPEG, n = 12, 16, 22) 具有临界溶解温度特性, 据此确证了以 ILPEG 为稳定剂制得的 Rh 纳米催化剂具有温控相分离催化功能, 并将其用于 1,5-环辛二烯 (1,5-COD) 选择性加氢制环辛烯 (COE) 的反应中. 在优化的反应条件下, 1,5-COD 转化率和 COE 选择性分别为 99% 和 90%; Rh 纳米催化剂经简单分相即可与产物分离, 催化剂循环使用 10 次, 其活性和选择性无明显降低.

关键词: 温控相分离催化, 离子液体, 铑纳米粒子, 选择性加氢, 1,5-环辛二烯

Abstract: Through the study of the critical solution temperature of ionic liquids [CH3(OCH2CH2)nN+Et3][CH3SO3–] (ILPEG, n = 12, 16, 22), ILPEG-stabilized Rh nanoparticle catalysts have been found to function as thermoregulated phase-separable catalysts and have been shown to be efficient and recyclable for the selective hydrogenation of 1,5-cyclooctadiene (1,5-COD) to cyclooctene (COE). Under optimized conditions, the conversion of 1,5-COD and selectivity for COE were 99% and 90%, respectively. The Rh catalyst could be recovered by simple phase separation and reused for ten times without loss of activity or selectivity.

Key words: thermoregulated phase-separable catalysis, ionic liquid, rhodium nanoparticle, selective hydrogenation, 1,5-cyclooctadiene