TY - JOUR
T1 - Thermodynamic models for determination of the solubility of dibenzothiophene in different solvents at temperatures from (278.15 to 328.15) K
AU - Zhang, Qi
AU - Hu, Yonghong
AU - Shi, Ying
AU - Yang, Yang
AU - Cheng, Limin
AU - Cao, Cuicui
AU - Yang, Wenge
N1 - Publisher Copyright:
© 2014 American Chemical Society.
PY - 2014/9/11
Y1 - 2014/9/11
N2 - Data on corresponding solid-liquid equilibrium of dibenzothiophene (DBT) in different solvents are essential for a preliminary study of industrial applications. In this study, the solubility behavior of DBT in different solvents, such as methanol, ethanol, isopropyl alcohol, butan-1-ol, formic acid, and acetonitrile at temperatures ranging from (278.15 to 328.15) K was investigated. An analytical stirred-flask method was employed to measure the dissolubility of DBT. For the temperature range investigated, the solubility of dibenzothiophene in the solvents increased with increasing temperature. The thermodynamic models, such as the Van 't Hoff model, the modified Apelblat model and the Buchowski-Ksiazaczak λh model were investigated to describe the experimental data. It was found that the modified Apelblat model was the most suitable for predicting the solubility behavior of DBT with a temperature increment. The calculated thermodynamic parameters indicated that in each studied solvent the dissolution process of DBT is endothermic.
AB - Data on corresponding solid-liquid equilibrium of dibenzothiophene (DBT) in different solvents are essential for a preliminary study of industrial applications. In this study, the solubility behavior of DBT in different solvents, such as methanol, ethanol, isopropyl alcohol, butan-1-ol, formic acid, and acetonitrile at temperatures ranging from (278.15 to 328.15) K was investigated. An analytical stirred-flask method was employed to measure the dissolubility of DBT. For the temperature range investigated, the solubility of dibenzothiophene in the solvents increased with increasing temperature. The thermodynamic models, such as the Van 't Hoff model, the modified Apelblat model and the Buchowski-Ksiazaczak λh model were investigated to describe the experimental data. It was found that the modified Apelblat model was the most suitable for predicting the solubility behavior of DBT with a temperature increment. The calculated thermodynamic parameters indicated that in each studied solvent the dissolution process of DBT is endothermic.
UR - http://www.scopus.com/inward/record.url?scp=84907270673&partnerID=8YFLogxK
U2 - 10.1021/je500437m
DO - 10.1021/je500437m
M3 - 文章
AN - SCOPUS:84907270673
SN - 0021-9568
VL - 59
SP - 2799
EP - 2804
JO - Journal of Chemical and Engineering Data
JF - Journal of Chemical and Engineering Data
IS - 9
ER -