2,6-二氯苯甲腈的合成

摘要本文详细研究了用重氮化方法制备2,6-二氯苯甲腈的方法,分别考察了硫酸与醋酸配比、氰化介质酸碱性、氰代分解温度对收率的影响,并对废水处理进行了考察。确定了n(硫酸)∶n(醋酸)=3 4∶1～1∶1之间,氰代温度50℃,氰代反应介质pH值7～9的最佳条件,同时找到了一条处理含氰络合物废水的方法,使CuCN循环,而且处理后废水低于国家排放标准。

	Service

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	Email Alert
	RSS
	作者相关文章
	刘瑞祥
	于钟深

关键词： 2 6-二氯苯甲腈 2 6-二氯苯胺重氮化

Abstract： 2,6-Dichlorobenzonitrile was synthesized from 2,6-dichloroaniline by diazo reaction.Effects of reaction temperature,ratio of H_2SO_4 to CH_3COOH and pH value on the yield and purity of product were studied.The highest yield of 2,6-dichlorobenzonitrile was obtained under the conditions that n(H_2SO_4)∶n(CH_3COOH)=34∶1～1∶1,reaction temperature was 50℃ and the pH was between 7～9.After processed,the quality of cyanide waste-water was up to the emission standard.

Keywords：

Received 2004-03-15; published 2004-03-15

引用本文:

刘瑞祥,于钟深.2,6-二氯苯甲腈的合成[J]. 化学工业与工程, 2004,21(2): 87-90

LIU Rui-xiang,YU Zhong-shen.Synthesis of 2,6-Dichlorobenzonitrile[J]. Chemcial Industry and Engineering, 2004,21(2): 87-90