Measurements and Modelling of Quaternary (Liquid + Liquid) Equilibria for Mixtures of (Water + Phosphoric acid + Dichloromethane + ۱, ۲-Dicholoroethane)

Extraction of phosphoric acid from aqueous solutions is an important operation in chemical and petrochemical processes. Design of apparatus and determining the optimum operating conditions for extraction systems require the knowledge of multi-component liquid + liquid equilibrium (LLE) data [۱-۲]. In particular, LLE investigations for quaternary mixtures are important in the evaluation of industrial units for solvent extraction processes.In this work, (liquid + liquid) equilibrium data (binodal and tie line data) for the quaternary mixtures of {water + phosphoric acid + dichloromethane (DM) + ۱, ۲-dichloroethane (DE) } at different ratio were obtained at ۲۹۸.۱۵ K and ambient pressure

کلیدواژه ها:

Quaternary mixtures ، Phosphoric acid ، Activity coefficient ، NRTL.