| 焙烧温度对S2O8^2-／Al2O3-Fe2O3固体酸催化性能的影响 |
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| 引用本文： | 严慧,何明中,张爱华,王君霞.焙烧温度对S2O8^2-／Al2O3-Fe2O3固体酸催化性能的影响[J].武汉冶金科技大学学报,2009(2):163-165. |
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| 作者姓名： | 严慧 何明中 张爱华 王君霞 |
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| 作者单位： | 中国地质大学（武汉）材料科学与化学工程学院,湖北武汉430074 |
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| 基金项目： | 中国地质大学优秀青年教师资助项目（CUGQNL0817）. |
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| 摘 要： | 制备S2O8^2-／Al2O3-Fe2O3型固体酸催化剂，用于催化乙酸和正丁醇合成乙酸正丁酯，采用TG／DSC、IR、SEM、XRD等对其结构和性能进行了表征，并研究了焙烧温度对其催化性能的影响。结果表明，不同焙烧温度对S2O8^2-／Al2O3-Fe2O3系列催化剂的结构和性能均产生一定的影响；随着焙烧温度的升高，酯化率呈先增加后降低的趋势，其中500℃焙烧的催化剂具有最佳的催化活性，其酯化率达到90．78％。
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| 关 键 词： | S2O82-/Al2O3-Fe2O3 制备 表征 催化活性 |
Influence of calcination temperature on properties of S2O8^2-/Al2O3-Fe2O3 solid acid |
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| Authors: | Yan Hui He Mingzhong Zhang Aihua Wang Junxia |
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| Affiliation: | (Faculty of Material Science and Chemical Engineering, China University of Geosciences, Wuhan 430074, China) |
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| Abstract: | S2O8^2-/Al2O3-Fe2O3 solid acid catalysts were prepared and applied to the esterification of acetic acid and butanol. The structure and properties of S2O8^2-/Al2O3-Fe2O3 were characterized by means of TG/DSC, XRD, IR, and SEM. The effect of different calcination temperatures on the catalytic properties was also investigated. The results show that calcination temperature has important influence on catalytic properties and structure. With the increase of calcination temperature, the conversion rate of acetic acid first increases and then decreases, and the solid acid catalyst calcined at 500 ℃ has the best catalytic activity which yields a conversion rate of acetic acid as high as 90.78%. |
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| Keywords: | S2O8^2-／Al2O3-Fe2O3 preparation characterization catalytic activity |
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