VAPOR-LIQUID-EQUILIBRIA OF BINARY-MIXTURES 2-BUTANOL PLUS BUTYL ACETATE, HEXANE PLUS BUTYL ACETATE, AND CYCLOHEXANE PLUS 2-BUTANOL AT 101.3KPA

Vapor-Liquid equiliibria were measured at 101.3 kPa for three binary m ixtures of 2-butanol + butyl acetate, hexane + butyl acetate, and cycl ohexane + 2-butanol. The isobaric T-x-y data were reported, including an azeotropic point for the binary mixture of cyclohexane + 2-butanol. Calculations of the nonideality of the vapor phase were made with the second virial coefficients determined by the Tsonopoulos correlation equation. Various activity coefficient models were used to correlate t he experimental data. Satisfactory results were obtained, and optimall y fitted binary parameters are presented.