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中文摘要：
为了给以甲基异丁基酮为溶剂的含酚废水萃取过程设计和流程模拟计算提供基础数据，实验测定了常压，25、40和50℃下甲基异丁基酮-水-苯酚三元物系在稀酚水范围内的液液相平衡数据。采用NRTL活度系数模型对实验数据进行了关联，回归得到了该三元物系的二元交互参数。运用回归得到的模型参数，对该三元物系的相平衡数据进行预测计算，结果表明该模型可以很好地关联实验数据，模型计算值与实验值的相对均方根误差和绝对平均误差均在2％以内。
英文摘要：
Fundamental liquid-liquid equilibria data are very important in modeling and design of the extraction process. To provide fundamental data for the extraction process of phenol removal from wastewater, experimental liquid-liquid equilibrium data in the range of dilute phenol concentration were determined for the ternary system methyl isobutyl ketone （MIBK） -water-phenol at 25℃, 40℃ and 50℃ under atmospheric pressure. The experimental data were correlated with the NRTL model, and binary interaction parameters of the ternary systems were obtained. The predicted data calculated by using the regressed parameters showed that the experimental data were successfully correlated with the NRTL model. The relative root mean square deviations and absolute mean deviations between calculated and experimental values were less than 2 %.
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