多孔镍铁电极电解还原制备2,2'-二氯氢化偶氮苯

化工进展

多孔镍铁电极电解还原制备2,2'-二氯氢化偶氮苯

赵振宇，李培金，孟庆函，曹兵

北京化工大学材料科学与工程学院，北京 100029

出版日期:2010-09-05 发布日期:2010-09-05

Synthesis of 2,2'-dichlorohydrazobenzene using porous Ni-Fe electrode

ZHAO Zhenyu，LI Peijin，MENG Qinghan，CAO Bing

College of Materials Science and Engineering，Beijing University of Chemical Technology，Beijing 100029，China

Online:2010-09-05 Published:2010-09-05

摘要/Abstract

摘要：

采用负载氧化铅的多孔镍铁电极还原邻氯硝基苯合成2,2'-二氯氢化偶氮苯（DHB），讨论了电极的电极形态、温度、溶剂含量、碱度、邻氯硝基苯浓度和不同分散形式对合成反应的影响，并对反应机理进行了讨论。结果表明镍铁电极具有较高的催化活性，在电流密度3～6 A/dm²，70 ℃和适当的泵循环速度条件下产物含量高且稳定，最终DHB的含量能够稳定在90%以上。

Abstract:

A novel synthetic method for 2,2′-dichlorohydrazobenzene（DHB）from o-chlornitrobenzene（o-CNB）was developed based on porous Ni-Fe electrode dispersed with PbO particles. Effects of cathode，electrolyte temperature，o-chloronitrobenzene concentration，basicity，dispersion mode and toluene on the electrolytic reduction were discussed. The optimum reaction temperature was found as 70 ℃，moderate current density（3—6 A/dm²）and appropriate pump flow rate were beneficial to improve the hydrogenation reduction，under which the final DHB content could be reached to 90%.

赵振宇，李培金，孟庆函，曹兵. 多孔镍铁电极电解还原制备2,2'-二氯氢化偶氮苯 [J]. 化工进展.

ZHAO Zhenyu，LI Peijin，MENG Qinghan，CAO Bing. Synthesis of 2,2'-dichlorohydrazobenzene using porous Ni-Fe electrode[J]. Chemical Industry and Engineering Progree.