ZHANG Zhigang, XU Shimin, LI Xingang, et al. INFLUENCE OF TEMPERATURE ON SOLVENT SELECTIVITY FOR EXTRACTIVE DISTILLATION[J]. CIESC Journal, 2004, (10): 1740-1742.
ZHANG Zhigang, XU Shimin, LI Xingang, et al. INFLUENCE OF TEMPERATURE ON SOLVENT SELECTIVITY FOR EXTRACTIVE DISTILLATION[J]. CIESC Journal, 2004, (10): 1740-1742.DOI:
Extractive distillation is an important and useful technique for separating close boiling and azeotropic liquid mixtures.Solvent selectivity is the key to achieving success.In this paper
the relation of solvent selectivity versus temperature for different mixed systems(C6H6+C6H12+DMSO
C6H6+C6H12+DMF
EtOH+EA+DMF+DMSO
C6H6+C6H12+DMF+DMSO) was examined by the modified UNIFAC model
which is a well-tested method to select a solvent for extractive distillation.With increasing temperature
solvent selectivity was decreased.In addition
the influence of temperature on solvent selectivity was set forth for the first time by using the Clausius-Mosotti equation.