An improved group solution model for the prediction of excess free energies of liquid mixtures | Zendy

Ronc M. | Zendy; Ratcliff G. A. | Zendy

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An improved group solution model for the prediction of excess free energies of liquid mixtures

Author(s) -

Ronc M.,

Ratcliff G. A.

Publication year - 1975

Publication title -

the canadian journal of chemical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.404

H-Index - 67

eISSN - 1939-019X

pISSN - 0008-4034

DOI - 10.1002/cjce.5450530315

Subject(s) - alkane , alcohol , methylene , thermodynamics , group (periodic table) , chemistry , group contribution method , chain (unit) , materials science , organic chemistry , hydrocarbon , physics , phase equilibrium , phase (matter) , astronomy

An improved analytical group solution model has been developed and applied to mixtures containing the groups methylene and hydroxyl. The new model predicts molecular activity coefficients for alcohol/n‐alkane and alcohol/water systems with an accuracy of about 5%. Predictions are equally good for systems of alcohols and n‐alkanes of the same chain length; earlier models give poor predictions for these newly‐measured systems.

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