EXTRACTIVE DISTILLATION WITH AQUEOUS SOLUTIONS OF HYDROTROPES
Title:
EXTRACTIVE DISTILLATION WITH AQUEOUS SOLUTIONS OF HYDROTROPES
Author:
Agarwal, Mamta Gaikar, V. G.
Appeared in:
Chemical engineering communications
Paging:
Volume 115 (1992) nr. 1 pages 83-94
Year:
1992
Contents:
The effect of hydrotropes on vapor-liquid equilibrium of a mixture provides a potential technique of extractive distillation for systems which are difficult or impossible to separate by normal rectification. Various hydrotropes, such as sodium toluate, sodium toluence sulfonate, sodium cymcnc sulfonate, sodium mesitylene sulfonate and sodium salicylate, in aqueous solutions have been tested for the separation of close-boiling point mixtures, such as p-cresol/2,6-xylenol, isopropanol/ fm-butanol, and wc-butanol/rert-butanol. The changes in the relative volatility increase with the concentration of hydrotrope and with the hydrotrope to solute ratio.
Journal description