Salt effect on liquid liquid equilibrium of the system water + 1-butanol + acetone at 298k: experimental determination

Abstract

The influence of a solid salt on VLE and LLE cannot be ignored because it significantly changes the equilibrium composition. Liquid-Liquid Equilibrium is the result of intermolecular forces which can significantly change due to salt addition which introduces ionic forces , affecting the thermodynamic equilibrium . Aqueous electrolyte liquid-liquid equilibrium is often related to extraction processes. In the present work the salt effect on the system namely ‘1-Butanol+Water+Acetone’ has been studied with various salts under varied concentration at 298K. The salt used in the above system are NaCl,KCl with 5%,10% and 15% concentration. The solubility data and tie-line data are
taken experimentally at different salt concentration. The experimentally determined tie-line data of this work have been correlated by Hand’s correlation.