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Ponte Academic Journal
Sep 2016, Volume 72, Issue 9

VAN LAAR EQUATION AND UNIFAC TO CORRELATE THE DATA LIQUID PHASE EQUILIBRIA FOR THE EXTRACTION OF PHENOLIC COMPOUNDS FROM MODEL COAL TAR

Author(s): Dewi Selvia Fardhyanti ,Wahyudi B. Sediawan, Panut Mulyono, Muslikhin Hidayat

J. Ponte - Sep 2016 - Volume 72 - Issue 9
doi: 10.21506/j.ponte.2016.9.17



Abstract:
The focus of this research is to study the liquid-liquid extraction process of the major components of coal tar and to generalize the results of experiments by correlating the data of liquid-liquid equilibrium with van laar and UNIFAC model and to obtain the values of the parameters of the model.\\r\\nThis research includes one stage experiment, that is the the liquid-liquid extraction of phenol, o-cresol, and p-cresol using a aqueous acetone and aqueous methanol. The experiment used model coal tar containing phenol, o-cresol, p-cresol in kerosene, which was prepared in the laboratory with the phenol, o-cresol, p-cresol content similar to the real coal tar. The extraction process aims to obtain the equilibrium data and parameters of thermodynamic model for this system. \\r\\nBy using visual inspection, thermodynamic models for the extraction of phenol, o-cresol, and p-cresol using an aqueous acetone and an aqueous methanol solvents showed that Van Laar�s model is more suitable for predicting the liquid equilibrium in the extraction of phenolic conpounds compared to UNIFAC�s models.
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