Abstract: Vapor-liquid equilibrium (VLE) for a ternary system of methyldichlorosilane +
methylvinyldichlorosi-lane + toluene and constituent binary systems were measured at
101.3kPa using a new type of magnetical pump-ebulliometer. The equilibrium compositions of
the vapor phase of binary systems were calculated indirectly fromthe total pressure-
temperature-liquid composition (pTx). The experimental data were correlated with the
Wilsonand NRTL(non-random two liquid) equations. The parameters of the Wilson model were
employed to predict theternary VLE data. The calculated boiling points were in good
agreement with the experimental ones.

Key words: methyldichlorosilane, methylvinyldichlorosilane, toluene, vapor-liquid equilibrium

摘要： Vapor-liquid equilibrium (VLE) for a ternary system of methyldichlorosilane +
methylvinyldichlorosi-lane + toluene and constituent binary systems were measured at
101.3kPa using a new type of magnetical pump-ebulliometer. The equilibrium compositions of
the vapor phase of binary systems were calculated indirectly fromthe total pressure-
temperature-liquid composition (pTx). The experimental data were correlated with the
Wilsonand NRTL(non-random two liquid) equations. The parameters of the Wilson model were
employed to predict theternary VLE data. The calculated boiling points were in good
agreement with the experimental ones.

关键词: methyldichlorosilane;methylvinyldichlorosilane;toluene;vapor-liquid equilibrium