2成分系気液平衡に対する第3成分の影響

抄録

Two general rules were derived through the observation and investigation into the ternary vapor-liquid equilibrium data in the literature. They are presented as follows:
Rule 1. In any ternary system containing components, A, B and C, the presence of high concentration of any arbitrarily selected component, say C, results in the relative volatility of component, A to B, remaining constant over a wide range of concentration ratio between A and B. Three typical examples are shown in Figs. 3, 4 and 5 and in Table 1.
Rule 2. In any ternary system containing components, A, B and C, the relative volatility of component, A to B, in the presence of high concentration of any arbitrarily selected component, C, expressed by (α_{AB, C})_xC→1, is nearly equal to the ratio of (α_AC)_xC→1 to (α_BC)_xC→1, which are relative volatilities in binary systems A-C and B-C at high concentration of component C. That is:
(α_{AB, C})_xC→1_??_(α_AC)_xC→1/(α_BC)_xC→1
Some examples are shown in Table 2 and in Fig. 6.
By using these rules, the third component to be added to the binary system may be selected easily for the extractive distillation.