Phase equilibria in the ternary system isobutyl alcohol + isobutyl acetate + 1-hexanol and the binary systems isobutyl alcohol + 1-hexanol, isobutyl acetate + 1-hexanol at 101.3 kPa

Consistent vapor–liquid equilibrium (VLE) data at 101.3 kPa have been determined for the ternary system isobutyl alcohol (IBA) + isobutyl acetate (IBAc) + 1-hexanol and two constituent binary systems: IBA + 1-hexanol and IBAc + 1-hexanol. The IBA + 1-hexanol system exhibits no deviation from ideal b...

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Bibliographic Details
Published in:Fluid phase equilibria 2005-01, Vol.235 (1), p.64-71
Main Authors: Muñoz, R., Montón, J.B., Burguet, M.C., de la Torre, J.
Format: Article
Language:English
Subjects:
1-Hexanol
Activity coefficient models
Chemistry
Exact sciences and technology
General and physical chemistry
Isobutyl acetate
Isobutyl alcohol
Liquid-vapor equilibria
Phase equilibria
Vapor–liquid equilibria
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Summary:Consistent vapor–liquid equilibrium (VLE) data at 101.3 kPa have been determined for the ternary system isobutyl alcohol (IBA) + isobutyl acetate (IBAc) + 1-hexanol and two constituent binary systems: IBA + 1-hexanol and IBAc + 1-hexanol. The IBA + 1-hexanol system exhibits no deviation from ideal behaviour and IBAc + 1-hexanol system show lightly positive deviation from Raoult's law. The activity coefficients of the solutions were correlated with its composition by the Wilson, NRTL, UNIQUAC models. The ternary system is well predicted from binary interaction parameters. 1-Hexanol eliminates the IBA–IBAc binary azeotrope. However, the change of phase equilibria behaviour is small therefore this solvent is not an effective agent for that azeotrope mixture separation. In fact, the mean relative volatility on a solvent free basis is 1.28 (close to unity).
ISSN:0378-3812
1879-0224
DOI:10.1016/j.fluid.2005.06.019