Page 129 - 《精细化工》2020年 第10期

第 10 期 高鹏翔，等: Brønsted-Lewis 双酸性离子液体催化合成乙酸正丁酯 ·2059·

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2.4.4 离子液体的重复使用性
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图 11 [NH 3 C 3 H 6 SO 3 H]Cl/0.75ZnCl 2 的重复使用性 [10] LIU X M, MA H Y, WU Y, et al. Esterification of glycerol with
Fig. 11 Reusability of [NH 3 C 3 H 6 SO 3 H]Cl/0.75ZnCl 2 acetic acid using double SO 3H-functionalized ionic liquids as
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可以看出，离子液体循环使用 5 次后，催化活 [11] JIA Q H (贾巧焕), LIU R (刘冉), GUO P X (郭盼香), et al. Study on
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性仅略微下降。可能是因为在操作过程中造成了离
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子液体的 Brønsted 酸性逐渐减弱，Lewis 酸性逐渐 disease and now a nutraceutical for memory protection [J]. American
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