萃取精馏溶剂的研究应用进展  

Research and application progresses in solvents for extractive distillation

作　　者：唐晓东[1,2] 袁娇阳[2] 李晶晶[2] 温晓红[2] 赵千舒[2] 

机构地区：[1]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500 [2]西南石油大学化学化工学院,四川成都610500

出　　处：《现代化工》2013年第12期31-35,共5页Modern Chemical Industry

摘　　要：综述了近年来国内外萃取精馏溶剂的研究应用进展,重点介绍了离子液体、加盐溶剂和复合溶剂等3类新型溶剂,可通过对结构、组成和用量的调控来达到最优分离性能。新型溶剂的可调控性,有效地改善了传统溶剂因性质单一而无法兼顾高选择性和溶解性的缺点。通过对3类新型溶剂的比较指出,相比于离子液体和加盐溶剂,复合溶剂萃取精馏能使用已有的工艺设备且操作条件简单,更具实用价值,具有极好的开发应用前景。The recent progresses in solvents for extractive distillation, including ionic liquid, salted solvents and composite solvents, are reviewed. The structure, composition and dosage of novel solvents can be changed to improve the selectivity and solubility. The variability of novel solvents can alleviate the contradiction between selectivity and solubility of conventional solvents. Based on the analysis of the above-mentioned novel solvents, it is pointed out that composite solvents have better practical value and application prospect than ionic liquid and salted solvents because of its simple onerating conditions and usage of existin~ eauinment.

关 键 词：萃取精馏 溶剂 离子液体 加盐溶剂 复合溶剂 

分 类 号：TQ028.3[化学工程]