高等学校化学学报

高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (9): 1280.

• 研究论文 • 上一篇    下一篇

丙酮-环烷烃体系的无限稀释活度系数的气提法测定研究

鲍坚斌, 杭莱莱, 凌月平, 陈庚华, 韩世钧   

  1. 浙江大学化学系, 杭州 310027
  • 收稿日期:1992-11-07 修回日期:1993-04-14 出版日期:1993-09-24 发布日期:1993-09-24
  • 通讯作者: 韩世钧.
  • 作者简介:第一作者:男, 28岁, 讲师.
  • 基金资助:

    浙江省自然科学基金(No.290044)

Studies on the Determination of Infinite Dilution Activity Coefficients of Acetone-Cycloalkane Systems by Gas Stripping Method

BAO Jian-Bin, HANG Lai-Lai, LING Yue-Ping, CHEN Geng-Hua, HAN Shi-Jun   

  1. Department of Chemistry, Zhejiang University, Hangzhou, 310027
  • Received:1992-11-07 Revised:1993-04-14 Online:1993-09-24 Published:1993-09-24

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被引次数

1

摘要： 如果溶剂是高挥发性物质,当用气提法测定无限稀释活度系数时需要加预饱和釜以消除气提时因溶剂量损失过大而带来的问题.本文就丙酮-甲基环戊烷、丙酮-环己烧和丙酮-甲基环己烷3个体系在298.2～318.2K温度范围内的γ∞作了测定,用所得数据作全浓度范围的汽液平衡推算,与文献中实验值对比,发现Wilson方程结果最佳.

关键词: 丙酮-环烷烃体系, 无限稀释活度系数, 气提法

Abstract: Apre-saturator would be added for the gas stripping method to maintain the amounts of the solvent if it was a high-volatile substance.The infinite dilution activity coefficients of three acetone-cycloalkane systems:acetone-methyl cyclopentane, acetone-cyclohexane, acetone-methyl cyclohexane have been determined in the 298.2-318.2 Ktemperature region.Linear dependence of Inγ∞ on1/Tis found for all systems, and the temperature parameters are in the order:cyclohexane<methyl cyclopentane<methyl cyclohexane.Furthermore, the experimental results are used to predict the whole range VLE.The results show that Wilson equation gives the best fit to literature data.

Key words: Acetone-cycloalkane system, Infinite dilution activity coefficient, Gas stripping method

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