修正的 Wilson 模型对含离子液体体系的关联和预测

摘要

首次使用修正的 Wilson 模型关联四类对拉乌尔定律呈现不同偏差的含离子液体1-乙基-3-甲基咪唑双（三氟甲基磺酰基）亚胺[EMIM][（CF3 SO2）2 N]的二元体系汽液相平衡数据。利用从二元体系回归的模型参数预测了2-丙醇＋水＋[ EMIM][（CF3 SO2）2 N]的汽液平衡数据，总压的相对均方根偏差为8.36％。结果表明：修正的 Wilson 模型对关联和预测含离子液体的汽液相平衡数据有一定的适用性。%The modified Wilson model was used for the first time to regress the vapor -liquid equilibrium data of the four binary systems containing ionic liquid [ EMIM] [( CF3 SO2 )2 N] with different deviations from Raoul ˊs law.With the parameters regressed from the binary systems , the modified Wilson model was able to predict the 2 -propanol +water +[EMIM][(CF3 SO2 )2 N]vapor -liquid equilibrium data with the relative root mean square deviation between the measured and predicted pressures equal to 8.36%.The results show that the modified Wilson model is capable to correlate and predict the vapor -liquid equilibrium data of system containing ionic liquids .