Quaternary liquid–liquid equilibria for systems of {(water + methanol or ethanol) + m-xylene + n-dodecane}

Liquid–liquid equilibrium (LLE) data were determined for the quaternary systems of {(water + methanol or ethanol) + m-xylene + n-dodecane} at three temperatures 298.15, 303.15 and 313.15 K and atmospheric pressure. The composition of liquid phases at equilibrium was determined by gas–liquid chromato...

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Bibliographic Details
Published in:Fluid phase equilibria 2006-01, Vol.239 (1), p.1-7
Main Authors: Mohsen-Nia, M., Modarress, H., Mohammad Doulabi, F.S.
Format: Article
Language:English
Subjects:
Activity coefficient
Chemistry
Ethanol
Exact sciences and technology
Extraction
General and physical chemistry
Liquid-liquid equilibria
m-Xylene
Methanol
n-Dodecane
NRTL
Phase equilibria
Quaternary mixtures
UNIQUAC
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Summary:Liquid–liquid equilibrium (LLE) data were determined for the quaternary systems of {(water + methanol or ethanol) + m-xylene + n-dodecane} at three temperatures 298.15, 303.15 and 313.15 K and atmospheric pressure. The composition of liquid phases at equilibrium was determined by gas–liquid chromatography and the results were correlated with the UNIQUAC and NRTL activity coefficient models. The partition coefficients and the selectivity factor of the solvent are calculated and compared. The phase diagrams for the quaternary systems including both the experimental and correlated tie lines are presented.
ISSN:0378-3812
1879-0224
DOI:10.1016/j.fluid.2005.10.018