Keggin结构钼钒磷杂多化合物催化氧化乙苯合成苯乙酮  

Catalytic Oxidation of Ethylbenzene to Acetophenone by Molybdovanadophosphoric Heteropoly Compounds with Keggin Structure

作　　者：李家其[1] 郭军[1] 尹笃林[2] 

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 [2]湖南师范大学化学化工学院,湖南长沙410081

出　　处：《精细化工中间体》2007年第1期55-57,共3页Fine Chemical Intermediates

基　　金：湖南省教育厅科学研究基金资助项目(05C757)

摘　　要：合成了一系列具有Keggin结构的钼钒磷酸铵杂多化合物,并以它们作催化剂、过氧化氢为氧化剂催化乙苯氧化合成苯乙酮。研究发现,在该反应中,催化剂具有较好的催化性能,且杂多化合物的钒原子数增加,其催化氧化活性增强,在优化条件下,乙苯转化率达81.7%,苯乙酮选择性为100%。A series of ammonium molybdovanadophosphate heteropoly compounds with Keggin structure were synthesized, and then were used to catalyze the oxidation of ethylbenzene to acetophenone with hydrogen peroxide as oxidant. The results indicated that the catalysts had an excellent catalytic activity for the reaction and the catalytic activities of the heteropoly compounds were greatly enhanced by increasing amounts of vanadium. Conversion of ethylbenzene was 81.7% and selectivity of acetophenone was 100% under the optimum conditions.

关 键 词：杂多化合物 催化 氧化 乙苯 

分 类 号：O611.66[理学—无机化学]