| 苯与双氧水在高效钼钒磷杂多酸催化剂上的羟基化 |
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| 引用本文： | 张富民,郭麦平,葛汉青,王军.苯与双氧水在高效钼钒磷杂多酸催化剂上的羟基化[J].中国化学工程学报,2007,15(6):895-898. |
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| 作者姓名： | 张富民 郭麦平 葛汉青 王军 |
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| 作者单位： | State Key Laboratory of Materials-Oriented Chemical Engineering,College of Chemistry and Chemical Engineering,Nanjing University of Technology,Nanjing 210009,China |
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| 基金项目： | Supported by the National Natural Science Foundation of China （Nos.20306011, 20476046） and the Ph.D. Program Foundation for Chinese Universities （No.20040291002）. |
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| 摘 要： | Keggin type molybdovanadophosphoric heteropoly acids, H3＋nPMo12-nVnO40（n=1-3）, were prepared by a novel environmentally benign method, and their catalytic performances were evaluated via hydroxylation of benzene to phenol with hydrogen peroxide as oxidant in a mixed solvent of glacial acetic acid and acetonitrile. Various reaction parameters, such as reaction time, reaction temperature, ratio of benzene to hydrogen peroxide, concentration of aqueous hydrogen peroxide, ratio of glacial acetic acid to acetonitrile in solvent and catalyst con- centration, were changed to obtain an optimal reaction conditions. H3＋nPMo12-nVnO40（n=1-3） are revealed to be highly efficient catalyst for hydroxylation of benzene. In case of H5PMo10V2O40, a conversion of benzene of 34.5% with the selectivity of phenol of 100% can be obtained at the optimal reaction conditions.
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| 关 键 词： | 羟基化作用 杂多酸催化剂 苯酚 苯 过氧化氢 |
| 收稿时间： | 2006-10-26 |
| 修稿时间： | 2007-10-12 |
Hydroxylation of Benzene with Hydrogen Peroxide over Highly Efficient Molybdovanadophosphoric Heteropoly Acid Catalysts |
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| ZHANG Fumin,GUO Maiping,GE Hanqing,WANG Jun.Hydroxylation of Benzene with Hydrogen Peroxide over Highly Efficient Molybdovanadophosphoric Heteropoly Acid Catalysts[J].Chinese Journal of Chemical Engineering,2007,15(6):895-898. |
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| Authors: | ZHANG Fumin GUO Maiping GE Hanqing WANG Jun |
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| Affiliation: | State Key Laboratory of Materials-Oriented Chemical Engineering,College of Chemistry and Chemical Engineering,Nanjing University of Technology,Nanjing 210009,China;State Key Laboratory of Materials-Oriented Chemical Engineering,College of Chemistry and Chemical Engineering,Nanjing University of Technology,Nanjing 210009,China;State Key Laboratory of Materials-Oriented Chemical Engineering,College of Chemistry and Chemical Engineering,Nanjing University of Technology,Nanjing 210009,China;State Key Laboratory of Materials-Oriented Chemical Engineering,College of Chemistry and Chemical Engineering,Nanjing University of Technology,Nanjing 210009,China |
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| Abstract: | Keggin type molybdovanadophosphoric heteropoly acids,H3 nPMo12-nVnO40 (n= 1-3),were prepared by a novel environmentally benign method,and their catalytic performances were evaluated via hydroxylation of benzene to phenol with hydrogen peroxide as oxidant in a mixed solvent of glacial acetic acid and acetonitrile.Various reaction parameters,such as reaction time,reaction temperature,ratio of benzene to hydrogen peroxide,concentration of aqueous hydrogen peroxide,ratio of glacial acetic acid to acetonitrile in solvent and catalyst concentration,were changed to obtain an optimal reaction conditions. H3 nPMo12-nVnO40 (n= 1-3) are revealed to be highly efficient catalyst for hydroxylation of benzene. In case of H5PMo10V2O40,a conversion of benzene of 34.5% with the selectivity of phenol of 100% can be obtained at the optimal reaction conditions. |
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| Keywords: | hydroxylation heteropoly acid phenol benzene |
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