This article reviews the characteristics,classification,selection of extractants,and related domestic and foreign research progress of extraction distillation.Introduced the principle of extraction distillation and the method of selecting corresponding extractants for different azeotropic compositions.This article reviews the application research and progress of extraction distillation technology both domestically and internationally in recent years.It is particularly pointed out that the separation method with a small amount of difficult to separate azeotropic/near azeotropic impurities has advantages such as strong feasibility,obvious separation effect,and low cost.At present,extraction distillation technology is developing towards the direction of green and energy-saving.
关键词
萃取精馏/绿色节能/特殊精馏/萃取剂
Key words
extraction distillation/green and energy-saving/special distillation/extractant
维普
万方数据