This thesis deals with aqueous electrolyte mixtures. The Extended UNIQUAC model is being used to describe the excess Gibbs energy of such solutions. Extended UNIQUAC parameters for the twelve ions Na+, K+, NH4+, H+, Cl-, NO3-, SO42-, HSO4-, OH-, CO32-, HCO3-, and S2O82- are estimated. A computer program including a steady state process simulator for the design, simulation, and optimization of fractional crystallization processes is presented.
Main Research Area:
Technical University of Denmark, Department of Chemical Engineering, 1997