Revista Colombiana de Química
versão impressa ISSN 0120-2804
CARDONA, Carlos Ariel; NAVARRO, Iván Ricardo e MATALLANA, Luis Gerónimo. EXPERIMENTAL LIQUID VAPOUR EQUILIBRIUM OF THE BINARY SYSTEM METHANOL-METHYL ACETATE AT 580 mmHG. Rev.Colomb.Quim. [online]. 2006, vol.35, n.1, pp. 19-27. ISSN 0120-2804.
In this work the liquid - vapor binary equilibrium for the system Methanol - Methyl Acetate was measured at 580 mmHg using equipment with recirculation that also can be employed for reactive mixtures. The obtained data was compared with liquid vapor equilibrium prediction employing NRTL activity model for the liquid phase (using parameters found in the literature) and the Hayden O´Connel's equation of state for the non ideality of vapor phase. New parameters of NRTL activity model were obtained. The Vresky law that permits without rigorous calculations to predict qualitatively the displacement of binary azeotropes by pressure changes was confirmed, using various experimental data that is reported in the literature for this system at 760 mm Hg.
Palavras-chave : Vapor-Liquid equilibrium; Vrevsky´s Law; Methyl acetate; Methanol.