催化学报

催化学报 ›› 2006, Vol. 27 ›› Issue (4): 299-300.

• 研究快讯 • 上一篇    下一篇

Hβ分子筛在环己烷过氧化氢分解中的催化活性

孙志强,徐杰,杜仲田,张伟   

  1. 中国科学院大连化学物理研究所, 辽宁大连 116023
  • 收稿日期:2006-04-25 出版日期:2006-04-25 发布日期:1984-12-26

Catalytic Activity of Hβ Zeolite for Cyclohexyl Hydroperoxide Decomposition

SUN Zhiqiang, XU Jie*, DU Zhongtian, ZHANG Wei   

  1. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023, Liaoning, China
  • Received:2006-04-25 Online:2006-04-25 Published:1984-12-26

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摘要： 使用不含过渡金属的Hβ分子筛催化环己烷过氧化氢分解反应,考察了主要产物环己醇和环己酮随反应时间和温度的变化. 结果表明, Hβ分子筛具有很高的催化活性,其TOF值高达181.9 h-1, 与贵金属催化剂5%Ru/Al2O3相当. 在125 ℃下环己醇和环己酮的总选择性达84.6%. 反应的主要副产物为环己酮缩合和羰基加成产物.

关键词: H&beta, 分子筛, 环己烷过氧化氢, 分解, 环己醇, 环己酮

Abstract: The transition metal free acidic zeolite Hβ has been found to be very active for the decomposition of cyclohexyl hydroperoxide. A remarkable high TOF of 181.9 h-1 was achieved with Hβ, which is almost equal to the TOF over 5%Ru/Al2O3. The total selectivity for the main products cyclohexanol and cyclohexanone reached 84.6%. The reaction temperature greatly affected the decomposition rate and product selectivity.

Key words: H&beta, zeolite, cyclohexyl hydroperoxide, decomposition, cyclohexanol, cyclohexanone