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由过量焓推算液液双结点曲线

PREDICTION OF BINARY LIQUID LIQUID BINODAL CURVES FROM EXCESS ENTHALPIES
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摘要 采用局部组成模型NRTL、改进的NRTL(模型参数设为温度的线性函数)、汪赵模型和作者提出的改进的汪赵模型对正己烷苯胺等6个体系作了由过量焓(HE)推算液液双结点曲线的研究。结果表明,NRTL、改进的NRTL的推算效果均很差,汪赵模型的推算稍有改善。 Local composition models NRTL、 modified NRTL (modified by inclusion of linear temperature dependent parameters)、 Wang Chao model(a compelete local composition model by Wang et al) and Wang Zhao model modified by the authors were used to predict binary liquid liquid binodal curves from excess enthalpies for six systems involving hexane(1)+aniline(2). The results show that NRTL and modified NRTL can hardly provide even qualitatively correct predictions, that Wang Chao model yield good predictions for some systems but incorrect results for others. and that modified Wang Chao model is more accurate for the predictions.
出处 《南京化工大学学报》 1996年第A01期52-55,共4页 Journal of Nanjing University of Chemical Technology(Natural Science Edition)
关键词 过量焓 液液双结点曲线 局部组成模型 excess enthalpy\ prediction\ binary liquid liquid binodal curves\ local composition model
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