Vapor‐liquid equilibria for the ternary system n‐Heptane/n‐Propanol/l, chlorobutane and its constituent binaries at 318.15 and 338.15 K

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Abstract
Isothermal liquid‐phase composition — total pressure, x‐P, data were measured for the ternary system n‐heptane/n‐propanol/l, chlorobutane and its constituent binaries at 318.1 S and 338.15 K. A total pressure static equilibrium apparatus was used. The binary x‐F data were correlated using four semi‐empirical local‐composition expressions for the activity coefficients, i.e. the Wilson, the LSG, the LCG and the UNIQUAC equations. The performance of these equations to predict the ternary data has been compared. In general, all four equations were found to give good predictions. The best results were obtained with the Wilson and the LCG equations.