Dawson型[(CH_2)_5NH]_7P_2Mo_(17)VO_(62)杂多酸盐的制备及其性能研究  

Synthesis and properties of Dawson compound[(CH_2)_5NH]_7P_2Mo_(17)VO_(62) catalyst

作　　者：张连中[1] 丁元生[1] ZHANG Lian-zhong;DING Yuan-sheng(Department of Chemical and Pharmaceutical Engineering,Jilin Institute of Chemical Technology,Jilin 132022,China)

机构地区：[1]吉林化工学院化学与制药工程学院,吉林吉林132022

出　　处：《应用化工》2018年第12期2602-2604,2608,共4页Applied Chemical Industry

基　　金：吉林省教育厅基金项目(2014353)

摘　　要：由偏钒酸钠、磷酸二氢钠和钼酸钠制备磷钼钒杂多酸,并以其为母体酸,合成Dawson结构哌啶盐[(CH_2)_5NH]_7P_2Mo_(17)VO_(62),以苯甲醛为原料,过氧化氢作氧化剂,探索[(CH_2)_5NH]_7P_2Mo_(17)VO_(62)在氧化反应中的催化性能。结果表明,最佳工艺条件为:物料摩尔比n(过氧化氢)/n(苯甲醛)为4. 27,催化剂用量摩尔比n(催化剂)/n(苯甲醛)=2. 49×10^(-4),反应时间为3 h,反应温度为80℃,苯甲酸收率达85%。Sodium metavanadate,sodium dihydrogen the lane molybdovanado phosphoric heteropoly acid,and its synthetic piperidine for the parent acid salt[(CH2)5NH]7P2Mo17VO62 phosphate and sodium molybdate to prepare. To[(CH2)5NH]7P2Mo17VO62 as catalyst,benzaldehyde as raw material,hydrogen peroxide as the oxidant,and explore its oxidation catalytic performance. The result showed that the optimum synthesis conditions: molar ratio of n( hydrogen peroxide)/n( benzaldehyde) was 4. 27,the molar ratio of n( catalyst)/n( benzaldehyde) = 2. 49 × 10-4,reaction time was 3 h,the reaction temperature was 80 ℃,benzoic acid yield reaches 85%.

关 键 词：苯甲酸 [(CH2)5NH]7P2Mo17VO62 催化 苯甲醛 

分 类 号：TQ426.94[化学工程]