摘要
以钛网为阳极,镍网为阴极,饱和的NaCl溶液为阳极电解质,应用离子交换膜通过阳极氧化甲苯的方法合成氯甲苯。讨论了阳极电解质质量分数、电流密度、电解液温度、反应时间等反应条件的选择。结果表明:在反应温度25℃,阳极、阴极电解液分别为25%NaCl和10%NaOH溶液,电流密度为10～15A/dm2条件下电解,并在4.5h左右结束反应,氯甲苯的产率最高,可达55.5%,电流效率为51.5%。
Chlorotoluene was synthesised by anodic oxidation using netted titanium as the anode, netted nickel as the cathode, saturated NaCl solution as the anode electrolyte and an ion exchange membrane as a separator. The selections of reactive condition such as mass fraction of electrolyte, current density, electrolyte temperature and reaction time are discussed. The optimized reaction conditions were found to be 25% NaCl as the anode electrolyte, 10% NaOH as the cathode electrolyte, 10-15A/dm^2 of current density and the reaction temperature as 25℃, under which chlorotoluene yield reached to 55.5 % with a current efficiancy of 51.5 %.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2009年第6期1051-1053,1058,共4页
Chemical Industry and Engineering Progress
关键词
氯甲苯
离子交换膜
电解氧化
chlorotoluene
ion exchange membrane
electrolytic oxidation
