| 固体超强酸S_2O_8~(2-)/TiO_2催化合成乙酸异戊酯 |
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| 引用本文： | 訾俊峰,朱蕾. 固体超强酸S_2O_8~(2-)/TiO_2催化合成乙酸异戊酯[J]. 应用化工, 2003, 32(6): 14-16 |
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| 作者姓名： | 訾俊峰 朱蕾 |
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| 作者单位： | 许昌学院,化学系,河南,许昌,461000 |
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| 基金项目： | 河南省高校青年骨干教师资助计划项目(项目编号189) |
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| 摘 要： | 以固体超强酸S2O82-/TiO2为催化剂,冰乙酸和异戊醇为原料合成了乙酸异戊酯,考察了反应条件对酯化率的影响。结果表明,最佳反应条件为:醇酸摩尔比1.5∶1,催化剂用量0.5g(当冰乙酸用量为0.1mol时),带水剂甲苯15ml,在110～118℃反应3h,其酯化率达96%以上。该方法的优点是酯化率高,催化剂可重复使用,且基本不腐蚀设备。
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| 关 键 词： | 乙酸异戊酯 固体超强酸 酯化 |
| 文章编号： | 1671-3206(2003)06-0014-03 |
| 修稿时间： | 2003-08-26 |
Synthesis of iso-amyl acetate catalyzed by solid superacid S2O82-/TiO2 |
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| ZI Jun-feng,ZHU Lei. Synthesis of iso-amyl acetate catalyzed by solid superacid S2O82-/TiO2[J]. Applied chemical industry, 2003, 32(6): 14-16 |
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| Authors: | ZI Jun-feng ZHU Lei |
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| Abstract: | Iso-amyl acetate is synthetized from glacial acetic acid and iso-amyl alcohol with solid superacid S_2O_8~(2-)TiO_2 as catalyst. The effect of reaction conditions on the ratio of esterification are discussed.The results showed that the optimum conditions were as follows: based on 0.1 mol glacial acetic acid, molar ratio of iso-amyl alcohol to acetic acid 1.5∶1, catalyst 0.5 g, the water-entrainer toluene 15 ml, reaction at 110～118 ℃ for 3 h, the ratio of esterification is over 96%. In this way the ratio of esterification is high, and catalyst can be used repeatedly with little corrosion equipments. |
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| Keywords: | iso-amyl acetate solid superacid esterification |
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