The equilibrium of the system “gas-liquid” for alloy Sn-Sb in vacuum distillation

In the processing of lead bullion necessary to separate the metal from impurities - copper, tin, antimony, arsenic, silver, bismuth, and with the possible use of environmentally friendly, technologically efficient and cost-effective high performance vacuum distillation. To analyze the behavior of multicomponent alloy processing, pre-selection of temperature and pressure of the system, evaluate the effectiveness of component separation in a vacuum distillation using phase diagrams temperature-composition “of T-h,” pressure-composition “R-x”. The aim of this work was to calculate the equilibrium “gas-liquid” VLE (vapor liquid equilibrium), including the dependence of phase composition on temperature (T-x) and pressure (P-x) for Sn-Sb alloy during vacuum distillation on the basis of the three-dimensional model of molecular interaction MIVM (мolecular interaction volume model), as well as determination of thermodynamic parameters of the process. In the temperature range 823-1073 to the calculated saturated vapor pressure (Pa) Sn (3...