| 초록 |
Liquid-liquid equlilibria (LLE) data were measured for binary systems containing alkanes (pentane, hexane, heptane, and octane), cycloalkanes (cyclopentane, cyclohexane, and cyclooctane), isoalkanes (isopentane and isohexane), and branched cycloalkanes (methylcyclopentane, methylcyclohexane, and ethylcyclohexane) with N-formylmorpholine over the wide temperature range using a circulation type equipment with an equilibrium view cell. The compositions of both light and heavy phases were analyzed by on-line gas chromatography. The mutual solubility increased as the temperature increased at all these systems. The binary liquid-liquid equilibrium data were correlated with the NRTL and UNIQUAC equations using temperature dependent parameters. Both of models correlate the experimental data well. The solubility in the N-formylmorpholine increased in the following order at the same temperature; cycloalkanes, branched-cycloalkanes, isoalkanes, and alkanes. |
