Collect. Czech. Chem. Commun. 1982, 47, 1667-1685

Liquid-liquid equilibrium. Calculation of equilibrium composition od coexisting phases

Josef P. Novák, Petr Voňka, Jaroslav Matouš and Vlastimil Růžička

Department of Physical Chemistry, Prague Institute of Chemical Technology, 166 28 Prague 6


A new algorithm is proposed for determining the equilibrium curve on the basis of the knowledge of Gibbs' energy of N-component system. A known equilibrium composition is used during calculation to estimate the next approximation. The method is also modified for chemical-engineering applications when the composition of coexisting phases to a given overall composition is sought (flash calculations).