| H9P2W15V3/C催化绿色合成对羟基苯甲酸丁酯 |
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| 引用本文： | 曹小华,任杰,刘朝霞,谢宝华,徐常龙,严平.H9P2W15V3/C催化绿色合成对羟基苯甲酸丁酯[J].食品工业科技,2012,33(6):365-369. |
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| 作者姓名： | 曹小华 任杰 刘朝霞 谢宝华 徐常龙 严平 |
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| 作者单位： | 1. 浙江工业大学化学工程与材料学院,浙江杭州,310014
2. 九江学院化学与环境工程学院,江西九江,332005 |
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| 基金项目： | 国家自然科学基金(21161009);江西省自然科学基金(20114BAB213002,2009GQH0053);江西省教育厅科技项目(GJJ10626,GJJ11613);九江学院质量工程项目(10XSCXXSY48) |
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| 摘 要： | 以活性碳为载体,通过浸渍法制备了H9P2W15V3/C催化剂,对催化剂进行Uv-Vis、FT-IR表征。以对羟基苯甲酸丁酯的合成反应为探针,考察了催化剂的催化性能。研究了磷钨钒杂多酸负载量、催化剂用量、醇酸比、反应时间和反应温度对反应的影响。通过单因素实验和正交实验确定了反应的最佳条件:杂多酸负载量为30%,催化剂用量8.7%(按反应体系总质量计算),醇酸摩尔比2∶1,反应时间3h,反应温度125℃,酯化率可达91.30%。催化重复使用5次,酯化率仍可达76.42%。
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| 关 键 词： | H9P2W15V3/C 对羟基苯甲酸丁酯 对羟基苯甲酸 正丁醇 |
Green synthesis of butyl p-hydroxy benzoate catalyzed by H9P2W15V3/C |
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| CAO Xiao - hua,REN Jie,LIU Zhao - xia,XIE Bao - hua,XU Chang - long,YAN Ping.Green synthesis of butyl p-hydroxy benzoate catalyzed by H9P2W15V3/C[J].Science and Technology of Food Industry,2012,33(6):365-369. |
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| Authors: | CAO Xiao - hua REN Jie LIU Zhao - xia XIE Bao - hua XU Chang - long YAN Ping |
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| Affiliation: | 1. College of Chemical Engineering and Materials Science,Zhejiang University of Technology,Hangzhou 310014,China; 2. College of Chemistry and Chemical Engineering,Jiujiang University,Jiujiang 332005,China) |
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| Abstract: | Tungstovanadophosphoric heteropoly acid with tri - vanadium - substituted Dawson structure supported on activated carbon was prepared by impregnation method and characterized by FT - IR,Uv - Vis. The catalytic performance in synthesis of butyl p - hydroxy benzoate was investigated. The main effects of the reaction were optimized with simple and orthogonal fact experiments. The optimized conditions were as follows:the supported quantity was 30%,the mass ratio of the catalyst to total reactant was 8. 7%,the molar ratio of n - butyl alcohol to p - hydroxy benzoic acid was 2∶ 1,the reaction time was 3h,the reaction temperature was 125℃. Yield of butyl p - hydroxy benzoate could reach 91. 30% under the optimum conditions. The catalyst could be reused for 5 times and the isolated yield of butyl p - hydroxy benzoate was still above 76. 42%. |
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| Keywords: | H9P2W15V3/C butyl p - hydroxy benzoate p - hydroxybenzoic acid n - butyl alcohol |
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