PHASE-EQUILIBRIA IN THE TERNARY-SYSTEM METHYL 1,1-DIMETHYLETHYL ETHERPLUS HEXANE PLUS OCTANE

Citation
J. Wisniak et al., PHASE-EQUILIBRIA IN THE TERNARY-SYSTEM METHYL 1,1-DIMETHYLETHYL ETHERPLUS HEXANE PLUS OCTANE, Journal of chemical and engineering data, 43(3), 1998, pp. 307-311
Citations number
22
Categorie Soggetti
Engineering, Chemical",Chemistry
ISSN journal
00219568
Volume
43
Issue
3
Year of publication
1998
Pages
307 - 311
Database
ISI
SICI code
0021-9568(1998)43:3<307:PITTM1>2.0.ZU;2-Q
Abstract
Vapor-liquid equilibrium at 94 kPa has been determined for the ternary system methyl 1,1-dimethylethyl ether (MTBE) + hexane + octane. The s ystem deviates positively from ideality, and no azeotrope is present. The ternary activity coefficients and the boiling points of the system have been correlated with the composition using the Redlich-Kister, W ilson, NRTL, UNIQUAC, UNIFAC, and Wisniak-Tamir relations. Most of the models allow a very good prediction of the activity coefficients of t he ternary system from those of the pertinent binary systems.