APPLICATION OF PERTURBATION THEORY(Ⅱ) CALCULATION OF LIQUID-LIQUID EQUILIBRIA FOR TERNARY SYSTEMS——H_2O-nC_4H_9OH-MX

汤义平; 李总成; 李以圭

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APPLICATION OF PERTURBATION THEORY(Ⅱ) CALCULATION OF LIQUID-LIQUID EQUILIBRIA FOR TERNARY SYSTEMS——H_2O-nC_4H_9OH-MX

更新时间：2025-12-16

- APPLICATION OF PERTURBATION THEORY(Ⅱ) CALCULATION OF LIQUID-LIQUID EQUILIBRIA FOR TERNARY SYSTEMS——H_2O-nC_4H_9OH-MX
- CIESC Journal Issue 6, (1992)
- 作者机构：
  
  清华大学化学工程系,清华大学化学工程系,清华大学化学工程系北京100084,北京100084,北京,100084
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 December 1992，
  
  Published：25 December 1992
- 稿件说明：
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汤义平, 李总成, 李以圭. APPLICATION OF PERTURBATION THEORY(Ⅱ) CALCULATION OF LIQUID-LIQUID EQUILIBRIA FOR TERNARY SYSTEMS——H_2O-nC_4H_9OH-MX[J]. CIESC Journal, 1992, (6).
DOI：

汤义平, 李总成, 李以圭. APPLICATION OF PERTURBATION THEORY(Ⅱ) CALCULATION OF LIQUID-LIQUID EQUILIBRIA FOR TERNARY SYSTEMS——H_2O-nC_4H_9OH-MX[J]. CIESC Journal, 1992, (6). DOI：

摘要

在本文(Ⅰ)报基础上

应用微扰理论导出了带电离子流体混合物的过量Helmholty自由能计算公式.该公式考虑了体系中溶质—溶剂、溶剂—溶剂和溶质—溶质间所有作用能(包括分子色散能、排斥能、偶极定向能、诱导能、离子静电能、离子偶极能).计算了在25℃下3个加盐混合溶剂体系[H_2O-nC_4H_9OH-MX(NaCl、KCl、KBr)]液液平衡中溶剂的活度系数

并与实验值进行了比较.

Abstract

Based on paper ( I )

the formulas of Helmholtz free energy for fluid mixtures with charged ions and polar molecules are deduced. All kinds of interaction energies between solute-solvent

solvent-solvent and solute-solute are considered (including dispersion

repulsion

dipole-dipole

dipole-induced dipole

ion-ion and ion-dipole energies). The activity coefficients of solvents in LLE for three salt-containing mixed-solvent ternary systems [H2O-nC4H9OH-MX (MX = NaCl

KCl and KBr)] at 25℃ are calculated asd compared with experimental data.

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