高校化学工程学报2024，Vol.38Issue(3)：375-383,9.DOI:10.3969/j.issn.1003-9015.2024.03.004
从正己烷中提取苯:混合萃取剂的筛选及液-液相平衡数据测定
Extraction of benzene from n-hexane:Screening of mixed extractants and liquid-liquid equilibrium data measurements
摘要
Abstract
Organic solvents cannot have both high solubility and high selectivity during aromatics extraction.A variety of extractants were screened by COSM-RS model,and the liquid-liquid balance data of benzene+n-hexane+mixed extractants were determined by liquid-liquid equilibrium experiments.The results show that the mass ratio of N-methylpyrrolidone(NMP)to sulfolane(SUL)=1:4 is the best extractant.Othmer-Tobias and Hand equations were used to verify the reliability of the experimental data,and NRTL and UNIQUAC models were used for experimental data regression.The calculated results were in good agreement with the experimental data.The results indicate that both models can be used for the calculation of aromatics extraction and provide data support for industrial aromatics extraction simulation.关键词
芳烃/液液萃取/混合萃取剂/COSMO-RS模型Key words
aromatics/liquid-liquid extraction/mixed extractant/COSMO-RS model分类
化学化工引用本文复制引用
李颜静,赵雨欣,孙晓岩,项曙光,赵文英..从正己烷中提取苯:混合萃取剂的筛选及液-液相平衡数据测定[J].高校化学工程学报,2024,38(3):375-383,9.基金项目
国家自然科学基金(22178190) （22178190）
国家青年自然科学基金(22008129). （22008129）
