Resumen: The study of the isothermal vapour-liquid equilibrium (VLE) of the binary mixtures n-heptane plus chlorobutane isomers (1-chlorobutane, 2-chlorobutane, 1-chloro-2-methylpropane or 2-chloro-2-methylpropane) at three different temperatures, T = 288.15, 298.15 and 308.15 K, is presented in this contribution. The experimental results were correlated using Wilson equation and the thermodynamic consistency of the data was checked by the van Ness method. Furthermore, two different methods have been used to predict the phase equilibrium in isothermal conditions: a pure group contribution method (modified-UNIFAC) and a group contribution equation of state (VTPR). Idioma: Inglés DOI: 10.1016/j.fluid.2015.09.031 Año: 2016 Publicado en: FLUID PHASE EQUILIBRIA 409 (2016), 72-77 ISSN: 0378-3812 Factor impacto JCR: 2.473 (2016) Categ. JCR: THERMODYNAMICS rank: 15 / 58 = 0.259 (2016) - Q2 - T1 Categ. JCR: CHEMISTRY, PHYSICAL rank: 70 / 145 = 0.483 (2016) - Q2 - T2 Categ. JCR: ENGINEERING, CHEMICAL rank: 44 / 135 = 0.326 (2016) - Q2 - T1 Factor impacto SCIMAGO: 0.85 - Chemical Engineering (miscellaneous) (Q1) - Physics and Astronomy (miscellaneous) (Q2) - Physical and Theoretical Chemistry (Q2)