| 稀土复合固体超强酸SO42-/ZrO2- 2% Gd2O3催化合成乙酸戊酯 |
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| 引用本文： | 杨义文,陈慧宗.稀土复合固体超强酸SO42-/ZrO2- 2% Gd2O3催化合成乙酸戊酯[J].有色金属科学与工程,2006,20(2):26-28. |
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| 作者姓名： | 杨义文 陈慧宗 |
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| 作者单位： | 1.嘉兴学院 生物与化学工程学院，浙江 嘉兴 314001 |
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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： | 制备了稀土复合固体超强酸SO42-/ZrO2- 2%Gd2O3催化剂，并对以乙酸和戊醇为原料合成乙酸戊酯的反应条件进行了研究。研究表明:当戊醇与乙酸的摩尔比为1:1.5，反应时间为6h，反应温度为130℃，催化剂用量为6%戊醇的质量时，反应酯化率最高，酯化率可达98.93%，选择性高达100%。研究发现，该催化剂可重复使用，并能活化再生。
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| 关 键 词： | 稀土复合固体超强酸 催化剂 SO42-/ZrO2- 2%Gd2O3 乙酸戊酯 |
| 收稿时间： | 2006-04-16 |
Catalytic Synthesis of N-amyl Acetate by RE Composite Solid Superacid SO42-/ZrO2- 2% Gd2O3 |
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| Affiliation: | 1.School of Biology and Chemical Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China2.Institute of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330027, Jiangxi, China |
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| Abstract: | Rare earth composite solid superacid SO42-/ZrO2- 2%Gd2O3 are prepared, the catalyst has high catalytic activity in the synthesis of n-amyl acetate. The factors influencing the reaction are investigated. The results show that the optimum reaction conditions are as follows: the mol ratio of amyl alcohol to acetic acid is 1:1.5, the use level of SO42-/ZrO2- 2%Gd2O3 is 6% of the mass of amyl alcohol, the reaction temperature is 130℃ and the reaction time is 6h, the esterification yield of n-amyl acetate can reach 98.93%, its reaction preference can reach 100%. The catalyst has good reusability, it can be activated and revivified. |
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