期刊
JOURNAL OF CHEMICAL THERMODYNAMICS
卷 127, 期 -, 页码 17-24出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jct.2018.07.014
关键词
Liquid-liquid equilibrium; MBK; Cresol; Thermodynamic models; COSMO-SAC
资金
- National Science Foundation of China [21506066]
- State Key Laboratory of Pulp and Paper Engineering [201708]
- Guangzhou Technology Project [201804010219]
- Fundamental Research Funds for the Central Universities SCUT [2017ZD069]
The liquid-liquid equilibrium (LLE) data for the three ternary systems, methyl butyl ketone (MBK) + o-, m-, p-cresol + water, were measured at 333.2 K and 353.2 K under 101 kPa in this work. Distribution coefficient and selectivity for cresols were calculated from the experimental tie-line data to evaluate the performance of MBK extracting cresols from the aqueous solution. The experimental tie-line data were correlated by the NRTL and UNIQUAC activity coefficient models, and both models showed good agreement with the experimental data. The COSMO-SAC model (conductor-like screening model for segment activity coefficient) was employed to predict LLE phase diagrams for the studied systems with root mean square deviations less than 3%. (C) 2018 Elsevier Ltd.
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