Dawson型磷钼酸及钒修饰Dawson型磷钼酸的制备及其活性研究  

The preparation and activity of Dawson-type molybdophosphoric acid and V-modified molybdophosphoric acid

作　　者：于克生[1] 冯豫川[1] 周永恒[1] 苗计生[1] 

机构地区：[1]西南民族大学化学与环境保护学院,四川成都610041

出　　处：《西南民族大学学报（自然科学版）》2011年第2期257-262,共6页Journal of Southwest Minzu University(Natural Science Edition)

摘　　要：制备了Dawson型磷钼酸H6[P2Mo18O62](P2V0)和钒修饰Dawson型磷钼酸H7[P2Mo17VO62](P2V1),用傅里叶变换红外光谱和X射线粉晶衍射进行了表征.以环戊醇为反应底物,用正交实验考察了催化剂用量,反应温度,反应时间和30%H2O2用量各因素对氧化反应的影响,并在优化条件下探索了对几种醇的催化氧化.H7[P2Mo17VO62]催化H2O2氧化苯甲醇合成苯甲酸最佳的条件为;H7[P2Mo17VO62];苯甲醇;H2O2=1;2133;9067(摩尔比),反应温度85℃,反应时间24h,苯甲醇的转化率达91.84%,苯甲酸的选择性达57.23%.The prepared Dawson-type molybdophosphoric acid H6[P2Mo18O62]（P2V0） and V-modified molybdophosphoric acid HT[P2Mo17VO62]（P2VI） are characterized by means of FTIR and XRD. Effects of catalyst amounts, reaction temperature, reaction time and H2O2 amounts by orthogonal on oxidation of cyclopentanol are investigated and explored on oxidation results for various alcohols in the optimal conditions. The optinal conditions are HT[P2Mo17VO62] ：benzyl alcohol：H2O2=1; 2133; 9067, reaction time 24h and reaction temperature 85 ℃, the conversion of benzyl alcohol is 91.84% and the selectivity of benzoic acid is 57.23%.

关 键 词：钒修饰 Dawson型磷钼酸 苯甲醇 活性研究 

分 类 号：O62[理学—有机化学] O643.3[理学—化学]