B. Blanco et al., Vapor-liquid equilibria for the ternary system benzene plus n-heptane plusN,N-dimethylformamide at 101.33 kPa, FLU PH EQUI, 175(1-2), 2000, pp. 117-124
Isobaric vapor-liquid-equilibrium (VLE) data at 101.33 kPa for the system f
ormed by benzene, n-heptane and N,N-dimethylformamide (DMF) are reported. D
ata reduction has been carried out through Wilson, NRTL, and UNIQUAC thermo
dynamic models for correlating the liquid-phase activity coefficients. Acti
vity coefficients of the components in the mixture indicate positive deviat
ions from Raoult's law. Experimental results show that DMF is a good extrac
tive solvent that reverses the volatility of the binary system benzene + n-
heptane. (C) 2000 Elsevier Science B.V. All rights reserved.