| Keggin型P-V-Mo-W四元杂多酸催化合成乙酸正丁酯 |
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| 引用本文： | 尹彦冰,宋瑶,金函. Keggin型P-V-Mo-W四元杂多酸催化合成乙酸正丁酯[J]. 桂林工学院学报, 2014, 0(2): 311-314 |
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| 作者姓名： | 尹彦冰 宋瑶 金函 |
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| 作者单位： | 齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔161006 |
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| 基金项目： | 博士后研究人员落户黑龙江科研启动基金（2012） |
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| 摘 要： | 采用正交试验设计研究了Keggin型P-V-Mo-W四元系列杂多酸H4PVMoxW11-xO40·nH2O(x=1,2,3,4)催化冰乙酸和正丁醇合成乙酸正丁酯的反应,得出最佳反应条件如下:正丁醇与冰乙酸的物质量比为1.2∶1,催化剂的用量为冰乙酸质量的0.5%,反应时间为40 min,酯化率达到88.52%。该系列杂多酸的酯化率随钨原子数的增加而提高。
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| 关 键 词： | 磷钒钼钨杂多酸 催化酯化 乙酸正丁酯 |
Synthesis of n-butyl acetate catalyzed by Keggin-type P-V-Mo-W heteropolyacid |
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| Affiliation: | YIN Yan-bing, SONG Yao, JIN Ming-han (Department of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China) |
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| Abstract: | n-Butyl acetate was synthesized by acetic acid and n-butyl alcohol in orthogonal experimental design using the Keggin-type P-V-Mo-W heteropolyacids H4PVMoxW11-xO40 · nH2O （x = 1, 2, 3, 4） as catalysts. The optimum conditions are ： the mole ratio of n-butyl alcohol to acetic acid is 1.2：1 ; the mass ratio of catalyst to acetic acid is 0. 5%, reflux time is 40 minutes and the esterification rate reaches up to 88.52%. As the number of wolfram atom in this Keggin-type P-V-Mo-W heteropolyacids increased, the esterification rate was improved. |
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| Keywords: | P-V-Mo-W heteropolyacids catalytic esterification n-butyl acetate |
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