本文采用改良型 Dvorak-Boublik 平衡釜,测定400毫米汞柱下醋酸-水,醋酸-醋酸甲酯和醋酸-水-醋酸甲酯的汽液平衡数据。采用 Tamir 等提出的考虑汽相缔合效应的热力学模型。用 Herrington经验方法对本文的二元体系的测定数据进行了热力学一致性的校验,用 Wilson 方程进行了热力学关联,其拟合精度是令人满意的。用求得的 Wilson 最佳配偶参数与本文的三元体系测定数据进行拟合,结果良好。 In this paper, a modified Dvorak-Boublik equilibrium kettle was used to determine vapor-liquid equilibrium data for acetate-water, acetic acid-methyl acetate and acetic acid-water-methyl acetate at 400 mm Hg. The thermodynamic model proposed by Tamir et al. The Herrington empirical method was used to verify the thermodynamic consistency of the data of the binary system in this paper. The Wilson equation was used for the thermodynamic correlation, and the fitting accuracy was satisfactory. The results obtained were fitted by using the obtained optimal Wilson parameter and the ternary system data of this paper.