Evaluation of Isobaric Liquid-Vapor Equilibrium Data for Alcohol-Water Systems Saturated with Salt

1977 ◽  
Vol 16 (1) ◽  
pp. 129-132 ◽  
Author(s):  
Derek Jaques
Keyword(s):  
Water Systems ◽  
Vapor Equilibrium ◽  
Alcohol Water ◽  
Equilibrium Data ◽  
Liquid Vapor

scholarly journals Liquid-vapor equilibrium and evaporation rate of Cd-Zn liquid alloy

2021 ◽  
pp. 30-30
Author(s):  
W.-C. Zhao ◽  
B.-Q. Xu ◽  
H.-W. Yanga
Keyword(s):  
Vacuum Distillation ◽  
Langmuir Equation ◽  
Wilson Equation ◽  
Experimental Conditions ◽  
Vapor Equilibrium ◽  
Equilibrium Data ◽  
Pure Metals ◽  
Zn Alloy ◽  
Better Than ◽  
Liquid Vapor

In this study, LVE (liquid-vapor equilibrium) data of cadmium-zinc system were determined at pressure of 7.5 Pa. We compare the use of the Redlich-Kister polynomials with the Wilson equation in fitting activities. The LVE for Cd-Zn system in vacuum distillation was modeled using the two models. The results of the two models are reliable, the Redlich-Kister polynomialsis better than the Wilson equation. The LVE phase diagram is reliable for predicting the process of vacuum distillation for Cd-Zn system. Evaporation rates of elements in Cd-Zn alloy were experimental measured and calculated by the Langmuir equation. Experimental data on the evaporation of pure metals Cd and Zn are included. The evaporation coefficients of zinc and cadmium under vacuum conditions were calculated. The deviations were discussed. Comparing calculations with experimental results, it can be found that the trend is consistent. The activation energies of Cd and Zn in the Cd-Zn alloy under experimental conditions were also calculated.

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