Span 60对3-甲基吡啶电氧化的影响  

Effect of Sorbitan Monostearate(Span 60) on the Electrooxidation of 3-Picoline

作　　者：高阳艳[1] 顾强[1] 李克昌[1] 陈晓东[2] 张恒彬[1] 张玉敏[1] 

机构地区：[1]吉林大学化学学院,吉林长春130012 [2]吉林大学测试科学实验中心,吉林长春130023

出　　处：《精细化工》2008年第9期886-889,共4页Fine Chemicals

基　　金：吉林省自然科学基金(20020643-2)~~

摘　　要：通过循环伏安曲线测定，考察了Span60（山梨糖醇酐单硬脂酸酯）对3-甲基吡啶电氧化的影响。正交实验确定的最佳反应条件是：n（3-甲基吡啶）／n（硫酸）：0．4，添加高于或接近临界胶束浓度的Span60，反应温度15℃，阳极电位1．9～2．0V，电解电量为理论电量的10％；其选择性可达85．46％，电流效率为48．69％，电流密度提高300mA／cm^2，并根据最佳反应条件进行外循环放大实验，其结果与小试基本相同。在选定的实验范围内，Span60对3-甲基吡啶电氧化有明显的促进作用，有应用前景。Electrooxidation of 3-picoline was studied by cyclic vohammetry in sulfuric acid solution with surfactant sorbitan monostearate （Span 60 ）. The optimum conditions of electrooxidation of 3-picoline were determined in the electrolytic system by orthogonal experiments to be ： n （3-picoline）/n （ H2 SO4 ） = 0. 4,temperature 15 ℃, anode potential 1.9 - 2.0 V, electric quantity 10% of the theoretical, and Span 60 concentration close to or exceeding the critical micellar concentration. The selectivity and current efficiency were 85.46% and 48.69% , respectively, and the current density was enhanced by 300 mA/cm^2 in electrooxidation of 3-picoline by addition of Span 60. The scale-up tests were performed, and the results were almost uniform with the orthogonal experiments. This mothod possesses application prospect.

关 键 词：山梨糖醇酐单硬脂酸酯 3-甲基吡啶 烟酸 电氧化 有机电化学与工业 

分 类 号：TQ432.2[化学工程] O646.5[理学—物理化学]