废水中二甲基甲酰胺的回收利用  

Recovery Methods of N,N-dimethylformamide( DMF)from DMF-containing Wastewater

作　　者：商国同[1] 李春红[1] 

机构地区：[1]西北化工研究院,陕西西安710699

出　　处：《广州化工》2017年第16期15-16,80,共3页GuangZhou Chemical Industry

摘　　要：N,N-二甲基甲酰胺(DMF)是一种重要的有机溶剂和化工中间体,用量巨大,其性质稳定、不易降解,在环境中长期存在对生物体具有很大毒性。化学方法和生化方法虽然能将污水中的N,N-二甲基甲酰胺(DMF)降解,但是也造成了N,N-二甲基甲酰胺(DMF)的极大浪费,如能采用物理方法加以回收利用变废为宝,增加经济效益的同时降低环境压力。本文简要介绍了国内回收废水中二甲基甲酰胺(DMF)的方法,主要包括蒸馏法、萃取法、吸附法、渗透汽化膜分离等,并对各种处理方法提出了一些改进意见。N,N-dimethylformamide（ DMF）,extensive used in chemical industry,is an important organic solvent and chemical intermediate. It is stable in nature and difficult to degrade. It is also toxic to organisms. Chemical methods and biochemical methods can degrade N,N-dimethylformamide（ DMF） in wastewater,but it＇s a great waste of N,N-dimethylformamide（ DMF）. If it can be recycled,it will be able to change waste into treasure,increase economic benefits and reduce environmental pressure. The recovery methods of N,N-dimethylformamide（ DMF） from DMF-containing wastewater was introduced in China,including distillation,extraction,adsorption and membrane separation,some suggestions for improvement was also introduced.

关 键 词：二甲基甲酰胺 废水处理 DMF 回收 

分 类 号：TQ209[化学工程—有机化工]