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针对含盐体系汽液平衡测定的特点及常用测定仪器和方法中的问题,改制了具有沸点仪和双循环平衡釜双重功能CS-Ⅱ型VLE测定仪,并以拟静态法测定了含盐体系汽液平衡的泡点线和平衡液相恒盐浓度下的露点线.新测定仪能避免用双循环仪器时极易出现的流动不稳定性和爆沸现象.成功地测定了氯化钙平衡液相浓度为5％的CaCl_2-丙酮(1)-甲醇(2)体系的汽液平衡数据.
In view of the characteristics of vapor-liquid equilibrium measurement of salt-containing system and the problems in commonly used measuring instruments and methods, the CS-Ⅱ VLE detector with dual function of boiling point and double-cycle equilibrium kettle was modified. The quasi-static method was used to determine the salt system Vapor-liquid bubble point line and equilibrium liquid dew point line under constant salt concentration.The new analyzer can avoid the instability and bump phenomenon which are prone to appear when using the two-cycle instrument.Calcium chloride balance Vapor-liquid equilibrium data for the 5% CaCl2-acetone (1) -methanol (2) system.