利用吡啶甲酸多氯化物固废电解还原制备2-吡啶甲酸的研究  

Preparation of 2-Picolinic Acid by Using Electrochemical Reduction of Halo-substituted Picolinic Acid from Waste

作　　者：田逢雨 郑茂红 厉云阳 黄程 徐庆华 金克强 TIAN Feng-yu ZHENG Mao-hong LI Yun-yang HUANG Cheng XU Qing-hua dIN Ke-qiang(Zhejiang Avilive Chemical Co., Ltd., Jinhua, Zhejiang 322118,China)

机构地区：[1]浙江埃森化学有限公司,浙江金华322118

出　　处：《浙江化工》2016年第10期7-9,共3页Zhejiang Chemical Industry

基　　金：国家科技型中小企业技术创新项目(12C26113303045)

摘　　要：研究了一种新的2-吡啶甲酸合成工艺,本工艺采用电解还原方法处理多氯吡啶甲酸固废,生产2-吡啶甲酸。比较合适工艺条件是：电解反应采用无隔膜型电解槽和粗糙银及镍合金电极,电解液p H值控制在13.0~13.5,反应温度控制在25℃~30℃;产品提取重结晶采用乙醇为溶剂,可得到2-吡啶甲酸的纯度在99%以上,总收率大于80%。Aprocess for preparing 2-picolinic acid by using electrochemical reduction of halo-substitut- ed picolinic acid from waste was provided. Thesuitable reaction conditions are as follows： a diaphragmless electrolytic cell comprising roughened silver and nickel alloy electrode, pH 13.0-13.5, 25℃-30℃. The product 2-picolinic acid was purified by re-crystallization in ethanol. The purity was 〉99%, and the total yield was 〉80%.

关 键 词：电解还原 多氯吡啶甲酸 2-吡啶甲酸 

分 类 号：TQ253.2[化学工程—有机化工]