高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

2-甲基吡啶的槽内式间接电氧化

李克昌, 曹学静, 张恒彬, 张玉敏   

  1. 吉林大学化学学院, 长春 130021
  • 收稿日期:2006-12-04 修回日期:1900-01-01 出版日期:2007-09-10 发布日期:2007-09-10
  • 通讯作者: 张恒彬

In-Cell Indirect Electrooxidation of 2-Picoline

LI Ke-Chang, CAO Xue-Jing, ZHANG Heng-Bin*, ZHANG Yu-Min   

  1. College of Chemistry, Jilin University, Changchun 130021, China
  • Received:2006-12-04 Revised:1900-01-01 Online:2007-09-10 Published:2007-09-10
  • Contact: ZHANG Heng-Bin

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被引次数

8

摘要： 在质子交换膜为隔膜的电解槽内, 以2-甲基吡啶为原料, 以Cr2O72-/Cr3+为媒质, 采用间接电氧化法研究了合成2-吡啶甲酸的反应条件. 实验结果表明, 硫酸浓度、硫酸铬浓度、 反应温度、2-甲基吡啶浓度和阳极电位对产率、转化率、 选择性和电流效率均有影响. 通过变化规律的研究, 找到了各个影响因素的最佳条件为: 硫酸浓度为6.0 mol/L, 反应温度为60 ℃, 硫酸铬浓度为0.15 mol/L, 2-甲基吡啶浓度为0.1 mol/L, 阳极电位为1.50 V.

关键词: 2-甲基吡啶, 2-吡啶甲酸, Cr2O72-/Cr3+, 间接电氧化

Abstract: In the electrolytic cell with proton exchange membrane as a diaphragm, the reaction conditions for preparing 2-pyridinecarboxylic acid from 2-picoline via indirect electrooxidation with Cr2O72-/Cr3+ as a mediator were studied, the results show that concentrations of H2SO4, Cr2(SO4)3 and 2-picoline, reaction temperature and anode potential have an important influence on yield, conversion, selectivity and current efficiency. The optimal conditions ara as follows: H2SO4 concentration 6.0 mol/L, reaction temperature 60 ℃, Cr2(SO4)3 concentration 0.15 mol/L, 2-Picoline concentration 0.1 mol/L, anode potential 1.50 V.

Key words: 2-Picoline, 2-Pyridinecarboxylic acid, Cr2O72-/Cr3+, Indirect electrooxidation

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