氯油除酸后与二甲胺反应的中试研究  

A pilot study on the reaction of acid-removed chlorinated oil with dimethylamine

作　　者：吴卫[1] 石绍军[1] 

机构地区：[1]湖南化工职业技术学院化学工程系,湖南株洲412004

出　　处：《氯碱工业》2008年第4期24-26,共3页Chlor-Alkali Industry

摘　　要：介绍了一种用质量分数为40%的二甲胺水溶液替代石灰与氯油反应,在生产氯仿的同时联产N,N-二甲基甲酰胺(DMF)的新工艺。氯油除酸后与二甲胺反应,氯仿及DMF相对于二甲胺的收率明显提高,二甲胺用量降低了约12.9%,加碱渣后生产氯仿的成本降低416元/t,加碳酸氢钠后生产氯仿的成本降低355元/t。A new process for the production of chloroform and coproduct N,N-dimethyl formamide from the reaction of 40 wt% dimethylamine aqueous solution which was used as the substituent for lime and chlorinated oil was introduced.After removing acid contained in chlorinated oil,the yield of chloroform and N,N-dimethyl formamide based on dimethyl amine increased obviously,and the consumption of dimethylamine lowered by about 12.9%.After adding alkali residue the production cost of chloroform lowered by 416 $ RMB per ...

关 键 词：氯油 氯仿 N N-二甲基甲酰胺 

分 类 号：TQ226.31[化学工程—有机化工]