US EPA

1452351 

Journal Article 

Isobaric VLE for the binary systems Isobutyl Acetate plus Methaanol or+1-Propanol at 0.15 MPa 

Susial, P; Apolinario, JC; Castillo, VD; Estupinan, EJ; Rodriguez-Henriquez, JJ 

2012 

Yes 

Afinidad
ISSN: 0001-9704 

69 

558 

95-100 

WOS:000312473400002 

Vapor-Liquid Equilibria were measured at 0.15 MPa for binary
mixtures of Isobutyl Acetate + Methanol and Isobutyl Acetate + 1-Propanol using a stainles-steel
ebulliometer in which both phases are recirculated. The isobaric T-x-y data are reported,
including the azeotropic point for the binary mixture of Isobutyl Acetate + 1-Propanol.
Calculations of the non-ideality of the vapor phase were made with the second virial coefficients
determined by the Hayden and O'Connell method. The Yen and Woods correlation was employed for
the Poynting factor calculations. The activity coefficients of the liquid phase have been
calculated. Thermodynamic consistency with the point-to-point test of Van Ness were examined on
these systems. The ASOG and several UNIFAC group contribution models were used. 

ASOG; Azeotrope; Binary system; UNIFAC; Vapor-Liquid Equilibria