节点文献
Mn3+间接电氧化邻氯甲苯制邻氯苯甲醛
Indirect Electrooxidation of O-chlorotoluene to O-chlorobenzaldehyde Using Mn3+ As Oxidant
【摘要】 以硫酸为介质,电解MnSO4 ,以制取Mn3+ ,将邻氯甲苯氧化为邻氯苯甲醛.通过电解氧化正交实验和MnSO4 单因素实验,得到了电解最佳条件,优化条件下电流效率达84.30 % .通过有机氧化正交实验,并结合工艺路线,优选了最适宜氧化条件,即硫酸浓度为6 .8 mol/L,温度为80 ℃,原料配比为1:3,搅拌转速为500 r/min.在此条件下,醛产率达90 .63 % ,反应速率为6 .183 ⅹ10- 3 mol·L-1·min- 1 .该工艺路线简单,具有一定的工业应用价值
【Abstract】 The oxidation of o-chlorobenzaldehyde from o-chlorotoluene is conducted using Mn 3+ in sulfuric acid as a mediator,and the Mn 3+ is generated by electrolytic oxidation of manganous sulfate.The optimum conditions of electrolytic oxidation experiment are determined through the orthogonal tests and mono-factor optimization experiments of manganous sulfate, and current efficiency is 84.30%.Reaction conditions of organic oxidation are also optimized to obtain maximum oxidation yield for o-chlorobenzaldehyde and reaction rate through the optional test.The yield for o-chlorobenzaldehyde attains 90.63%,and the reaction rate is 6.183ⅹ10 -3 mol·L -1 ·min -1 .The process can be used in actual industrial production.
【Key words】 Mn3+; electrolytic oxidation; indirect electrooxidation; o-chlorotobenzadehyde;
- 【文献出处】 郑州工业大学学报 ,JOURNAL OF ZHENGZHOU UNIVERSITY OF TECHNOLOGY , 编辑部邮箱 ,1999年04期
- 【分类号】TQ244.1
- 【被引频次】11
- 【下载频次】123