Liquid-liquid equilibria of water plus butyric acid plus nonanol ternary system
CHINESE JOURNAL OF CHEMICAL ENGINEERING, vol.12, no.5, pp.696-699, 2004 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 12 Issue: 5
- Publication Date: 2004
- Journal Name: CHINESE JOURNAL OF CHEMICAL ENGINEERING
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.696-699
- Istanbul University Affiliated: Yes
Abstract
Liquid-liquid equilibrium (LLE) data for the water + butyric acid + nonanol system have been determined experimentally at the temperatures of 298.15 K, 308.15 K and 318.15 K. Tie-line compositions were correlated by Othmer-Tobias method. The universal quasichemical functional group activity coefficient (UNIFAC) and modified UNIFAC methods were used to predict the phase equilibrium in the system using the interaction parameters between CH3, CH2, COOH, OH and H2O functional groups. Distribution coefficients and separation factors were evaluated for the immiscibility region.