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Application of molecular interaction volume model in vacuum distillation of Pb-based alloys |
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| Authors: | HongWei Yang Bin YangBaoQiang Xu DaChun Liu DongPing Tao |
| Affiliation: | a National Engineering Laboratory of Vacuum Metallurgy, Kunming University of Science and Technology, Kunming 650093, Yunnan, PR China b Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, PR China c State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, PR China |
| Abstract: | A method is presented for calculating the separation coefficients of Pb-Au and Pb-Sn alloys in vacuum distillation based on molecular interaction volume model (MIVM). A significant advantage of the model lies in its ability to predict the thermodynamic properties of liquid alloys using only binary infinite activity coefficients. The calculated results of Pb-Ag, Pb-Au, Pb-Sb, Pb-Sn and Sb-Sn show good agreement with experimental data in literature. It shows that the prediction effect of the proposed method is of better stability and reliability because the MIVM has a good physical basis. |
| Keywords: | Separation coefficients Vacuum distillation Molecular interaction volume model |
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