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新的分子热力学模型及其应用(Ⅱ)——在金属溶剂萃取体系中的应用 被引量:1

A New Molecular Thermodynamic Model and Its Applications (Ⅱ)The Application to Metal Solvent Systems
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摘要 将文(Ⅰ)提出的径向分布函数表达式与Flory-Huggins公式相结合,建立了新的非电解质溶液分子热力学模型.将其应用于复杂的金属溶剂萃取有机相体系,仅用3组二元体系实验数据,即可预测DEHPA萃取Cu、萃取Co及萃取Cu、Co各萃取有机相体系中各组分的活度系数和萃取反应热力学平衡常数,预测计算中,没有引入可调参数,而预测结果与实验结果相当吻合. Combining the analytic equation for molecular radial distribution function proposed in paper( I ) with Flory-Huggins equation, the molecularthermodynamic model for a non-electrolyte solution is established and is applied to the complicated metal solvent extraction systems, in which Co or Cu as well as Co and Cu are extracted by DEHPA. The activity coefficients for all components in the above systems and the thermodynamic equilibrium constants tor the extraction reactions are predicted by the model with the help of the experimental data from three binary systems. The predicted results are in good agreement with the experimental data.
出处 《化工学报》 EI CAS CSCD 北大核心 1990年第1期66-73,共8页 CIESC Journal
基金 国家青年自然科学基金
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参考文献3

  • 1陆九芳,高校化学工程学报,1987年,2卷,1期,1页
  • 2李以圭,物理化学学报,1985年,1期,93页
  • 3傅鹰,化学热力学导论,1964年

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