| 酸性聚乙烯基吡咯烷酮—杂多酸杂化催化剂的合成及其催化酯化反应性能 |
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| 引用本文： | 冷炎,仇学谦,蒋平平,王军.酸性聚乙烯基吡咯烷酮—杂多酸杂化催化剂的合成及其催化酯化反应性能[J].催化学报,2012(7):1224-1228. |
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| 作者姓名： | 冷炎 仇学谦 蒋平平 王军 |
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| 作者单位： | 江南大学化学与材料工程学院,食品胶体与生物技术教育部重点实验室;南京工业大学化学化工学院,材料化学工程国家重点实验室 |
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| 基金项目： | 国家自然科学重点基金(21136005);“十二五”国家科技计划(2012BAD32B03-4);中央高校基本科研业务费专项资金(JUSRP111A04)~~ |
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| 摘 要： | 合成并表征了聚乙烯基吡咯烷酮修饰的杂多酸杂化催化剂PVP-PW,比较了它与其它催化剂上乙酸和正丁醇的酯化反应性能.结果表明,PVP-PW是催化酯化反应的高效多相催化剂,所得酯收率和选择性分别高达98.4%和100%;反应结束后,催化剂通过简单过滤即可分离回收,重复使用6次后,其催化活性没有明显下降.通过改变反应底物羧酸和醇,发现催化剂PVP-PW在众多酯化反应中均具有较高的催化活性.
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| 关 键 词： | 杂多酸 吡咯烷酮 Brnsted酸催化剂 酯化反应 非均相催化 |
Synthesis of Polyvinyl Pyrrolidone-Heteropolyacid Acidic Hybrid Catalyst and Its Catalytic Activity for Esterification Reactions |
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| LENG Yan, QIU Xueqian,JIANG Pingping,WANG Jun.Synthesis of Polyvinyl Pyrrolidone-Heteropolyacid Acidic Hybrid Catalyst and Its Catalytic Activity for Esterification Reactions[J].Chinese Journal of Catalysis,2012(7):1224-1228. |
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| Authors: | LENG Yan QIU Xueqian JIANG Pingping WANG Jun |
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| Institution: | 1The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu, China 2State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, Jiangsu, China |
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| Abstract: | A novel acidic polyvinyl pyrrolidone-heteropolyacid hybrid catalyst PVP-PW was synthesized and characterized. The catalytic activity of the catalyst was measured in the esterification of acetic acid with n-butanol. The hybrid PVP-PW was demonstrated to be a highly efficient solid-liquid heterogeneous catalyst and exhibited high ester yield of 98.4% with perfect selectivity of 100%. After the reaction, the catalyst could be recovered simply by filtration and reused at least six times without a significant loss in the catalytic activity. In addition, this catalyst can be well applied to versatile carboxylic acids or alcohols for esterification. |
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| Keywords: | heteropolyacid pyrrolidone Brosted acidic catalyst esterification heterogeneous catalysis |
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