The chosen model of multicomponent batch distillation is under the following assumptions: 1) equimolar overflow, 2) total condensation, 3) vapor hold-up dynamics neglected, 4) pressure drop along the columns neglected, and 5) ideal mixing of the vapor and the liquid phase. The detailed mathematical model developed by Stojkovic et al. , containing mass balances on all the parts of the batch column (MES), was extended from a binary mixture to a case of a ternary mixture, ie. the total number of components equal to three. The control variables correspond to those described in an earlier paper by Stojkovic et al. .