钼钒磷季铵盐催化H_2O_2氧化苯乙烯的研究  

Oxidation of styrene catalyzed by quaternary ammonium molybdovanadophosphates with H_2O_2

作　　者：李家其[1] 郭军[1] 

机构地区：[1]湖南人文科技学院化学与材料科学系,湖南娄底417000

出　　处：《化学试剂》2008年第6期437-439,442,共4页Chemical Reagents

基　　金：湖南省教育厅科学研究基金资助项目(05C757)

摘　　要：考察了溶剂和钼钒磷季铵盐Q3+nPMo12-nVnO40中离子成分对苯乙烯催化氧化合成苯甲醛反应的影响。结果表明:在该反应中,冰乙酸是最佳溶剂;当钼钒磷季铵盐的反荷离子有效碳数为10.5,阴离子钒原子个数为6时,其催化氧化效果最好,苯乙烯转化率达到68.4%,苯甲醛选择性为98.0%。The effects of solvent and ion components of Q3＋n-PMo12-nVnO40 on catalytic oxidation of styrene to benzaldehyde catalyzed by quaternary ammonium molybdovanadophosphate were investigated.The results indicated that acetic acid was the best solvent in this reaction.A better catalytic performance of the catalyst was obtained when it possessed suitable ion components.The highest conversion of styrene reached up to 68.4% and the selectivity of benzaldehyde was 98.0% when the quaternary ammonium ions had 10.5 effective carbon atoms and the heteropolyanion had 6 vanadium atoms in the quaternary ammonium molybdovanadophosphates.

关 键 词：钼钒磷季铵盐 催化 氧化 苯乙烯 

分 类 号：O643.36[理学—物理化学]