| Ti-MWW催化氯丙烯环氧化反应动力学行为 |
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| 引用本文： | 方向青,王钰宁,邓秀娟,吴海虹,吴鹏,刘月明,何鸣元. Ti-MWW催化氯丙烯环氧化反应动力学行为[J]. 催化学报, 2011, 32(2): 333-339. DOI: 10.3724/SP.J.1088.2011.00820 |
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| 作者姓名： | 方向青 王钰宁 邓秀娟 吴海虹 吴鹏 刘月明 何鸣元 |
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| 作者单位： | 华东师范大学化学系上海市绿色化学与化工过程绿色化重点实验室; |
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| 基金项目： | 国家高技术研究发展计划(863计划,2007AA03Z342,2008AA030801); 国家自然科学基金(20973064); 上海市科委基金(06SR07101); 上海市重点学科建设项目基金(B409) |
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| 摘 要： | 以Ti-MWW分子筛为催化剂,以H2O2为氧化剂,系统研究了氯丙烯环氧化反应的动力学行为.结果表明,该反应速率与Ti-MWW分子筛的用量成正比,是1级反应.当H2O2浓度小于0.67 mol/L时,环氧化反应为1级反应;大于2 mol/L时,为0级反应.随着氯丙烯浓度的增加,环氧化反应级数从1级向0级转变;且只有当其浓...
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| 关 键 词： | 钛硅分子筛Ti-MWW 氯丙烯 过氧化氢 环氧化反应 反应机理 动力学 |
Reaction Dynamics Behavior of Epoxidation of Allyl Chloride with Hydrogen Peroxide Catalyzed by Ti-MWW |
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| FANG Xiangqing,WANG Yuning,DENG Xiujuan,WU Haihong,WU Peng,LIU Yueming,HE Mingyuan. Reaction Dynamics Behavior of Epoxidation of Allyl Chloride with Hydrogen Peroxide Catalyzed by Ti-MWW[J]. Chinese Journal of Catalysis, 2011, 32(2): 333-339. DOI: 10.3724/SP.J.1088.2011.00820 |
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| Authors: | FANG Xiangqing WANG Yuning DENG Xiujuan WU Haihong WU Peng LIU Yueming HE Mingyuan |
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| Affiliation: | FANG Xiangqing,WANG Yuning,DENG Xiujuan,WU Haihong,WU Peng,LIU Yueming,HE Mingyuan Shanghai Key Laboratory of Green Chemistry and Chemical Processes,Department of Chemistry,East China Normal University,Shanghai 200062,China |
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| Abstract: | The reaction mechanism for epoxidation of allyl chloride(ALC) with H2O2 catalyzed by Ti-MWW was studied in detail. The results showed that the epoxidation of ALC is first order reaction with respect to the catalyst amount and is the reactions between zero and first order with respect to the substrate concentration and the oxidant concentration. For H2O2,the epoxidation is first order reaction when its concentration is lower than 0.67 mol/L and zero order when its concentration is higher than 2 mol/L. For AL... |
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| Keywords: | Ti-MWW zeolite allyl chloride hydrogen peroxide epoxidation reaction mechanism dynamics |
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