| H3PW12O40/TiO2催化合成对羟基苯甲酸丁酯 |
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| 引用本文： | 陈彦,廖维林,许招会.H3PW12O40/TiO2催化合成对羟基苯甲酸丁酯[J].工业催化,2009,17(10):55-57. |
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| 作者姓名： | 陈彦 廖维林 许招会 |
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| 作者单位： | 江西师范大学化学化工学院，江西 南昌 330027 |
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| 基金项目： | 江西师范大学青年成长基金资助项目 |
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| 摘 要： | 采用溶胶-液相法制备了H3PW12O40/TiO2复合催化剂，用FT-IR分析方法对催化剂进行了结构表征。以对羟基苯甲酸和正丁醇为原料，合成了对羟基苯甲酸丁酯，考察反应物配比、催化剂用量、反应时间及催化剂的重复使用性能对产品收率的影响。结果表明，合成对羟基苯甲酸丁酯的较优反应条件为：对羟基苯甲酸 0.1 mol,n(对羟基苯甲酸)∶n(正丁醇)=1.0∶5.0,催化剂用量1.2 g，反应时间4.0 h，在此条件下，对羟基苯甲酸丁酯收率可达85%以上。
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| 关 键 词： | 催化化学 磷钨酸 钛酸四丁酯 对羟基苯甲酸丁酯 催化合成 |
Synthesis of n-butyl p-hydroxybenzoate catalyzed by H3PW12O40/TiO2 |
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| CHEN Yan,LIAO Weilin,XU Zhaohui.Synthesis of n-butyl p-hydroxybenzoate catalyzed by H3PW12O40/TiO2[J].Industrial Catalysis,2009,17(10):55-57. |
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| Authors: | CHEN Yan LIAO Weilin XU Zhaohui |
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| Affiliation: | Department of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330027, Jiangxi, China |
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| Abstract: | H3PW12O40/TiO2 catalyst was prepared by sol-gel method and characterized by FT-IR. The H3PW12040/TiO2 was used as the catalyst for synthesis of n-butyl p-hydroxybenzoate from n-hydroxy ben- zoic acid and n-butyl alcohol. The effects of reactants proportion, catalyst dosage, reaction time and repeated use of the catalyst were investigated and the favorable reaction condition was obtained as follows ： p-hydroxy benzoic acid 0.1 mol, n （p-hydroxy benzoic acid） ： n （ n-butyl alcohol） = 1.0： 5.0, dosage of the catalyst 1.2 g, reaction time 4.0 h. n-Butyl p-hydroxybenzoate yield of over 85% was attained under the above-mentioned reaction condition. |
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| Keywords: | catalytic chemistry phosphotungstic acid tetrabutyl titanate n-butyl p_hydroxybenzoate catalytic synthesis |
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