| 稀土改性SO_4~(2-)/TiO_2对合成莰烯的催化作用研究 |
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| 引用本文： | 陈慧宗,徐景士,刘永根,杨义文.稀土改性SO_4~(2-)/TiO_2对合成莰烯的催化作用研究[J].化学世界,2003,44(10):507-509. |
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| 作者姓名： | 陈慧宗 徐景士 刘永根 杨义文 |
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| 作者单位： | 江西师范大学化学学院，江西师范大学化学学院，江西师范大学化学学院，江西师范大学化学学院 江西南昌330027，江西南昌330027，江西南昌330027，江西南昌330027 |
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| 基金项目： | 国家自然科学基金资助项目(20262002) |
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| 摘 要： | 筛选出三种稀土改性催化剂SO2-4/TiO2-La2O3、SO2-4/TiO2-CeO2、SO2-4/TiO2-Nd2O3催化α-蒎烯合成莰烯的反应。考察了La3+、Ce4+、Nd3+浓度、反应温度、反应时间对转化率和产物分布的影响。确定在130℃反应均为一级反应,反应速率常数分别为3.964×10-1h-1、5.262×10-1h-1和5.313×10-1h-1。
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| 关 键 词： | 稀土 改性 合成 莰烯 |
Study on SO_4~(2-)/TiO_2 Catalyst Modified by Rare Earth for the Synthesis of Camphene |
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| CHEN Hui zong,XU Jing shi,LIU Yong gen,YANG Yi wen.Study on SO_4~(2-)/TiO_2 Catalyst Modified by Rare Earth for the Synthesis of Camphene[J].Chemical World,2003,44(10):507-509. |
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| Authors: | CHEN Hui zong XU Jing shi LIU Yong gen YANG Yi wen |
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| Abstract: | Three kinds of catalysts, SO 2- 4/TiO 2 La 2O 3, SO 2- 4/TiO 2 CeO 2 and SO 2- 4/TiO 2 Nd 2O 3, were used for synthesis of camphene from α pinene. The effects of concentration of La 3+ ,Ce 4+ ,Nd 3+ , reaction temperature and reaction time on conversion and product distributions were also investigated. It was found that the reaction was of the first order at 130℃. The reaction rate constant was 3.964×10 -1 h -1 , 5.262×10 -1 h -1 and 5.313×10 -1 h -1 , respectively. |
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| Keywords: | rare earth modify synthesis camphene |
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