ISOBARIC VLE DATA OF THE TERNARY-SYSTEM (1-BUTANOL PLUS N-HEXANE PLUS1-BUTYLAMINE) AND THE 3 CONSTITUENT BINARY MIXTURE AT 101.3 KPA

The isobaric vapour-liquid equilibrium has been experimentally studied for the ternary mixture (1-butanol+n-hexane+1-butylamine) and for the binary mixtures (1-butanol+n-hexane), (1-butanol+1-butylamine), and ( n-hexane+1-butylamine) at 10l.3 kPa. The activity coefficients were fo und to be thermodynamically consistent and they were satisfactorily co rrelated with the Margules, van Laar, Wilson, NRTL and UNIQUAC equatio ns. They have been also compared with the results obtained from the ap plication of ASOG and the modified UNIFAC group contribution methods.