Abstract: VLE data for a ternary system（propylene - methanol - water）under30～60℃,0.3～0.9MPa with the mass ratio of methanol to water 9:1, 8:2,7:3 were determined with static equilibrium still,and correlated by using UNIQUAC-RK model.The results indicated that the models were suitable for the temary system and the data were reliable．

摘要： 用静态平衡釜法测定了丙烯-水-甲醇三元物系在30～60℃温度，0.3～0.9MPa压力下，其中甲醇-水比例为9:1、8:2、7:3时的汽液平衡数据，用UNIQUAC-RK模型方程对汽液平衡数据进行了关联，求得各模型参数，所得结果令人满意。