叔丁醇-水-氯化锂体系汽液平衡的测定

VAPORLIQUID EQUILIBRIUM DATA FOR SYSTEM t-BUTYL ALCOHOLWATERLiCl

在１０１．３ｋＰａ下测定了叔丁醇－水－氯化锂体系在恒盐摩尔分率和饱和盐浓度下的汽液平衡数据。当盐摩尔分率为０．０５８８时，叔丁醇－水体系的共沸点消失。测定了几种盐在叔丁醇中的溶解度。用Ｆｕｒｔｅｒ方程、Ｍｏｔｏｙｏｓｈｉ方程和修正的Ｆｕｒｔｅｒ方程对实验数据进行了关联，其中修正的Ｆｕｒｔｅｒ方程关联结果较好，汽相组成平均偏差为０．００９３。

Isobaric VLE data at 101.3 kPa were measured for the system tbutylalcohol(1)water(2)LiCl(3) under fixed salt mole fraction and saturated salt concentration using a modified Othmer recirculation still. When salt mole fraction x3=0.0588, the azeotrope can be shifted right off the equilibrium diagram and eliminated. Solubility data for several salts in different temperature of t-butyl alcohol were also reported. The VLE data measured were correlated by Furter Eq.,Motoyoshi Eq.and the modified Furter Eq.. The mean deviations of vapor composition are 0.0128, 0.0104 and 0.0093 , respectively.