FENG Yirong, GAI Hengjun, GUO Kai, et al. Measurement and correlation of liquid-liquid equilibrium data for mesityl oxide-water-catechol ternary system[J]. CIESC Journal, 2017, (3): 848-853.
FENG Yirong, GAI Hengjun, GUO Kai, et al. Measurement and correlation of liquid-liquid equilibrium data for mesityl oxide-water-catechol ternary system[J]. CIESC Journal, 2017, (3): 848-853.DOI: 10.11949/j.issn.0438-1157.20161068.
In the extraction process of catechol removal from waste water
mesityl oxide was used as solvent
in order to provide fundamental data for this design and development. Experimental LLE data for mesityl oxide-water-catechol ternary system were measured at 30
40 and 50℃ under atmospheric pressure. Meanwhile
the reliability of the experimental LLE data was ascertained via Hand and Bachman equation where all of the square of the linear correlation coefficients were greater than 0.99. On the other hand
the experimental data were correlated with the NRTL activity coefficient model by data regression system of Aspen Plus. Accordingly
binary interaction parameters of the ternary systems were obtained. As a result
the compositions of LLE were calculated and compared with the corresponding experimental data by using the regressed parameters.And the relative root mean square deviations (RMSD) and absolute mean deviations (AMD) were both less than 1%
which show that the NRTL model and the regressed parameters agree well with the phase equilibrium behavior of this system.