| 反应控制相转移催化原位过氧化氢环氧化丙烯反应 |
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| 引用本文： | 张恒耘,吕迎,李军,高爽,奚祖威. 反应控制相转移催化原位过氧化氢环氧化丙烯反应[J]. 催化学报, 2010, 31(10): 1253-1256. DOI: 10.3724/SP.J.1088.2010.00328 |
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| 作者姓名： | 张恒耘 吕迎 李军 高爽 奚祖威 |
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| 作者单位： | 中国科学院大连化学物理研究所,辽宁大连,116023 |
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| 摘 要： | 以原位 H2O2 为氧源, 在新型反应控制相转移催化剂 (RCPTC) 作用下丙烯环氧化反应中, 考察了反应温度、反应时间、H2O2 浓度和催化剂浓度对反应性能的影响. 结果表明, 在适宜的反应条件下, RCPTC 催化剂循环使用 5 次后, 环氧丙烷产率仍维持在 85.6% 以上, 且催化剂循环反应 3 次后, 其组成趋于稳定.
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| 关 键 词： | 丙烯 环氧化 环氧丙烷 磷钨杂多酸盐 反应控制相转移催化 过氧化氢 |
| 收稿时间： | 2010-10-25 |
Epoxidation of Propylene Catalyzed by Reaction-Controlled Phase Transfer Catalyst with in-Situ H2O2 |
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| ZHANG Hengyun,L Ying,LI Jun,GAO Shuang,XI Zuwei. Epoxidation of Propylene Catalyzed by Reaction-Controlled Phase Transfer Catalyst with in-Situ H2O2[J]. Chinese Journal of Catalysis, 2010, 31(10): 1253-1256. DOI: 10.3724/SP.J.1088.2010.00328 |
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| Authors: | ZHANG Hengyun L Ying LI Jun GAO Shuang XI Zuwei |
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| Affiliation: | Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China |
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| Abstract: | The epoxidation of propylene catalyzed by a reaction-controlled phase transfer catalyst with H2O2 generated by the oxidation of 2-ethylanthrahydroquinone with molecular oxygen in the organic solvent was investigated. Effects of reaction temperature, reaction time, H2O2 concentration, catalyst concentration, and additives on the epoxidation were studied. Under the suitable conditions, the yield of pro-pylene oxide, based on 2-ethylanthrahydroquinone, was above 85.6% in the fifth cycle. The results of 31P MAS NMR of the recovered cata-lyst showed that the catalyst composition tended to being stable after the third cycle. |
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| Keywords: | propylene epoxidation propylene oxide heteropolyphosphatotungstate reaction-controlled phase-transfer catalysis hydrogen peroxide |
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