石油化工2013，Vol.42Issue(6)：636-640,5.
乙酸甲酯-甲醇-1-乙基-3-甲基咪唑四氟硼酸盐物系等压汽液平衡数据的测定与关联
Isobaric Vapor-Liquid Equilibrium for Methyl Acetate-Methanol-1-Ethyl-3-Methylimidazolium Tetrafluoroborate System
摘要
Abstract
Isobaric vapor-liquid equilibrium(VLE) data of methyl acetate-methanol-l-ethyl-3-methylimidazolium tetrafluoroborate ([emim] BF4) ternary system were measured at 101.3 kPa in a modified Othmer still.The vapor-liquid equilibrium curve of methyl acetate and methanol with the ionic liquid deviated from the curve of methyl acetate and methanol without the ionic liquid.The greater the ionic liquid mole fraction,the greater the deviation from the curve without the liquid.The ionic liquid [emim] BF4 exhibited a salting-out effect which enhanced the relative volatility.The NRTL model was used to correlate the experimental data,and the binary parameters were obtained.The parameters can be employed to predict the VLE of methyl acetate-methanol-l-ethyl-3-methylimidazolium tetrafluoroborate.The mean absolute deviations between the calculated and measured mole fractions of methyl acetate in the vapor phase and equilibrium temperature were 0.003 and 0.3 K for this ternary system,respectively.关键词
汽液平衡/离子液体/乙酸甲酯/甲醇/1-乙基-3-甲基咪唑四氟硼酸盐/NRTL模型Key words
vapor-liquid equilibrium/ ionic liquid/ methyl acetate/ methanol/ 1-ethyl-3-methylimidazolium tetrafluoroborate/ NRTL model分类
化学化工引用本文复制引用
李群生,曹玲,孙雪婷,李仑,张羽昕..乙酸甲酯-甲醇-1-乙基-3-甲基咪唑四氟硼酸盐物系等压汽液平衡数据的测定与关联[J].石油化工,2013,42(6):636-640,5.基金项目
中央高校教育基金项目(JL1101) （JL1101）
国家高技术研究发展计划项目(2008AA062401). （2008AA062401）
