高盐高氨氮废水处理方法  

A treatment method of high-salinity and high-ammonia-nitrogen wastewater

作　　者：澹台姝娴 

机构地区：[1]中国平煤神马集团开封东大化工有限公司,河南开封475003

出　　处：《氯碱工业》2016年第2期31-33,共3页Chlor-Alkali Industry

摘　　要：在生产联二脲过程中,以盐酸代替硫酸进行缩合反应。先冷却反应母液,并通过真空袋式过滤机将联二脲从母液中分离出来;再经过蒸发分别得到氯化钠、氯化铵;蒸发出的水回收用于ADC生产装置。Hydrochloric acid was substituted for sulfuric acid in the condensation reaction for biurea production. Firstly, reaction mother liquor was cooled, followed by separation of biurea in a vacuum bag filter; secondly, the mother liquor was vaporized to obtain sodium chloride and ammonium chloride, and evaporated water was recovered and returned to ADC production facility.

关 键 词：ADC发泡剂 联二脲 硫酸法缩合 盐酸法缩合 废水 回收利用 

分 类 号：X703[环境科学与工程—环境工程]