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用 SG- 型双循环汽液平衡釜和沸点仪装置测定了乙酸 -四氯化碳、乙酸 -正庚烷、四氯化碳 -正庚烷二元体系和乙酸 -四氯化碳 -正庚烷三元体系在 3 1 8～ 3 48K下恒定液相组成的汽液平衡数据。在实验温度范围内对每组数据用 Antoine方程作了关联 ,压力的关联值与实测值的最大的平均相对偏差为 0 .1 3 %。根据实测值分别推算了各个体系在实验温度范围内的等温汽液平衡 ,其中含乙酸的体系考虑到缔合效应 ,汽相采用双分子缔合模型。总压的关联计算值与实测推算值的总平均相对偏差小于 0 .6% ,最大为 1 .0 7%。
Acetic acid-carbon tetrachloride, acetic acid-n-heptane, carbon tetrachloride-n-heptane binary system and acetic acid-carbon tetrachloride-n-heptane Alkane ternary system at 31 8 ~ 3 48K constant liquid phase vapor-liquid equilibrium data. Each set of data was correlated with the Antoine equation over the experimental temperature range. The maximum relative mean deviation between measured and correlated values was 0.13%. Based on the measured values, the isothermal vapor-liquid equilibrium of each system in the experimental temperature range was calculated respectively. The acetic acid-containing system considered the associative effect and the vapor phase adopted the bimolecular association model. The total average relative deviation between the calculated total pressure and the measured value is less than 0.6% and the maximum is 1.07%.