获取二元液系气液相平衡组成的新方法  

A new way to acquire vapour and liquid phase equilibrium composition of two-component liquid system

作　　者：叶勤[1] 向明礼[2] 谈宁馨[2] 刘华[3] 甘斯祚[2] 赵志刚[4] 岑贵俐[4] 杨学军[4] 

机构地区：[1]西南农业大学基础科技学院,重庆400716 [2]四川大学化工学院,成都610065 [3]四川大学图书馆,成都610065 [4]西南民族学院化学与环境保护工程学院,成都610041

出　　处：《西南民族学院学报（自然科学版）》2002年第1期33-36,共4页Journal of Southwest Nationalities College(Natural Science Edition)

摘　　要：对一系列定组成的二元液系混合物不同温度时的折光率、组成数据,进行多项式拟合,得到不同温度下的折光率～组成关系的数学表达式.利用该数学表达式和内插近似以及自编计算程序,在一定温度范围内的任何温度测定二元液系混合物气液相平衡时的折光率数据,都可以快速、准确、直观地获取其相应的气液相平衡组成.Usually, a specific value of refraction coefficient corresponds to a fixed composition of a two-component liquor system while its temperature is taken to be constant. The polynomial regression method was employed to get the mathematic relationship between the coefficient and the composition. Based on the mathematic relationship, the method of interpolate and a calculating program developed by ourselves, the vapour and liquid equilibrium composition of two-component liquor system could be acquired quickly and accurately as soon as the value of refraction coefficient input.

关 键 词：二元液系 相图 折光率 多元回归 气液相平衡 平衡温度 平衡组成 物理化学 

分 类 号：O642.42[理学—物理化学]