离子液体与新型溶剂对化工精馏的可分离性能影响分析  

Analysis of the Influence of Ionic Liquids and New Solvents on the Separability of Chemical Distillation

作　　者：刘少洲 Liu Shaozhou(Shanxi Xingxin Safety Production Technology Service Co.,Ltd.,Taiyuan Shanxi 030024,China)

机构地区：[1]山西兴新安全生产技术服务有限公司,山西太原030024

出　　处：《山西化工》2025年第1期140-142,共3页Shanxi Chemical Industry

摘　　要：为了提升化工精馏的可分离性能,研究提出了离子液体与新型溶剂,分别应用于乙醇-水以及乙酸乙酯-乙醇-水的萃取精馏中。结果显示,与丙三醇相比,新型溶剂ChCl/Urea(物质的量比1∶2)对挥发度的影响最大,具有显著的可分离性能。[BMIM][OAC]与乙酸乙酯-乙醇-水的物质的量比为0.5时,分离效果最好。说明研究所提出的离子液体与新型溶剂能够有效实现共沸或者近沸混合物的萃取精馏,推动石油化工行业向更加清洁、高效的方向发展。In order to improve the separability of chemical distillation,ionic liquids and new solvents were proposed and applied to the extraction distillation of ethanol water and ethyl acetate ethanol water,respectively.The results showed that compared with glycerol,the new solvent ChCl/urea(1:2)had the greatest impact on volatility and exhibited significant separability.When the molar ratio of[BMIM][OAC]to ethyl acetate ethanol water is 0.5,the separation effect is the best.The proposed ionic liquids and new solvents can effectively achieve extraction and distillation of azeotropic or near azeotropic mixtures,promoting the development of the petrochemical industry towards a cleaner and more efficient direction.

关 键 词：离子液体 新型溶剂 化工 萃取 精馏 可分离性 

分 类 号：TQ028.12[化学工程]