催化学报

催化学报 ›› 2008, Vol. 29 ›› Issue (12): 1259-1265.

• 研究论文 • 上一篇    下一篇

氟插层水滑石催化烯烃环氧化反应

叶达洲,卓广澜   

  1. 浙江理工大学理学院应用化学系, 浙江杭州 300018
  • 收稿日期:2008-12-25 出版日期:2008-12-25 发布日期:2012-09-20

Epoxidation of Olefins Catalyzed by Fluoride-Pillared Layered Double Hydroxide

YE Dazhou, ZHUO Guanglan*   

  1. Department of Applied Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China
  • Received:2008-12-25 Online:2008-12-25 Published:2012-09-20

PDF

1136

被引次数

37

摘要： 制备了一系列不同Mg/Al比氟插层的水滑石(LDH-F), 并用X射线衍射、傅里叶变换红外光谱、扫描电镜和BET比表面积检测法对催化剂进行了表征,考察了不同Mg/Al比的LDH-F在苯乙烯环氧化反应中的催化活性. 结果表明, Mg/Al=5的LDH-F具有最佳催化活性. 通过以乙腈和苯甲腈分别作为反应用腈的对比实验发现,苯甲腈的效果优于乙腈. 以Mg/Al=5的LDH-F为催化剂, H2O2和苯甲腈为氧化剂对不同官能团化烯烃进行环氧化反应,结果表明,此催化体系具有良好的催化性能,在苯乙烯、茚、丙烯醇和烯丙基氯环氧化反应中转化率和选择性均在95%以上.

关键词: 氟插层水滑石, 官能团化烯烃, 环氧化, 过氧化氢

Abstract: A series of fluoride-pillared layered double hydroxide (LDH-F) samples with different Mg/Al ratios were prepared and characterized by X-ray diffracti on, fourier transform infrared spectroscopy, scanning electron microscopy, and B ET surface area measurements. The epoxidation of various olefins was carried out using LDH-F of Mg/Al =5 as the catalyst and 30%H2O2 and benzonitrile as th e oxidants. This catalytic system has excellent catalytic activity. The conversi on and selectivity are both above 95% in the epoxidation of styrene, indene, allyl alcohol, and allyl chloride.

Key words: fluoride-pillared layered double hydroxide, functionalized olefin, epoxidation, hydrogen peroxide