摘要
[EMIM]+[BF4]-是一种离子液体,本研究用改进的Othmer汽液平衡釜测定了101.3kPa下[EMIM]+[BF4]-摩尔分率x3=0.1,0.2的乙醇-水-[EMIM]+[BF4]-体系的汽液平衡数据,并用NRTL模型进行了关联,结果平均偏差为0.967%。实验表明:[EMIM]+[BF4]-可以消除乙醇-水体系的共沸点,可以作为萃取精馏分离乙醇-水体系的溶剂。
[EMIM]^＋[BF4]^- is ionic solution. In the experiments, modified Othmer vapor-liquid kettle was used to measure the vapor-liquid equilibrium data of ethanol-water-[EMIM]^＋[BF4]^- system （pressure at 101.3 kPa,mol value of [EMIM]^＋[BF4]^- as x3=0.1,0.2 respectively）, and the data were correlated by NRTL model and the results average deviation was 0.967 %. The experiments proved that [EMIM]^＋[BF4]^- could withdraw the azeotropic point of ethanol-water system and could be used as the extractive distillation solvent for the seoaration of ethanol and water.
出处
《酿酒科技》
北大核心
2006年第2期34-36,共3页
Liquor-Making Science & Technology
作者简介
王文华（1964-），博士生，副教授，主要从事分离工程方面的教学与研究工作，发表论文近20篇。
