丙酮连氮法反应精馏肼提纯工艺的构想  

Thoughts of process for purifying hydrazine produced by ketazine reactive distillation method

作　　者：周银根[1] 

机构地区：[1]江苏索普(集团)有限公司,江苏镇江212006

出　　处：《氯碱工业》2014年第12期30-31,共2页Chlor-Alkali Industry

摘　　要：采用如下方法对尿素法制肼工序的氧化液进行处理:以丙酮作试剂,先与氧化液中肼反应得丙酮连氮,再精馏提纯;分离出来的丙酮连氮经水解,重新获得纯度和浓度较高的水合肼;水解产生的丙酮返回系统循环使用;残留盐溶液回收处理后得到的氯化钠返回烧碱生产系统。A method was taken to treat oxidation solution formed in urea-process hydrazine production. The method comprised followings：①reacting acetone with hydrazine contained in the oxidation solution to obtain ketazine;②distilling to purify the obtained ketazine, hydrolyzing the separated ketazine to obtain high purity and high concentration hydrazine hydrate again;③ recycling the acetone formed in the hydrolysis to the system;④recovering and treating residual salt solution to obtain sodium chloride, and recycling the sodium chloride to produce caustic soda.

关 键 词：水合肼 丙酮 丙酮连氮 精馏 汽提 水解 

分 类 号：TQ226.52[化学工程—有机化工]