This work presents a formalized methodology for salt's separation from three
component electrolytic systems. The methodology is based on the multi-variant
modelling block of a generalized crystallization process, with options for
simulating the boundary conditions of feasible equilibrium processes and the
elements of crystallization techniques. The following techniques are
considered: cooling crystallization, adiabatic evaporative-cooling
crystallization, salt-out crystallization, isothermal crystallization, and a
combination of the mentioned techniques. The multi-variant options of the
crystallization module are based on different variable sets with assigned
values for solving mathematical models of generalized crystallization
processes. The first level of the methodology begins with the determination
of salt crystallization paths from a hypothetical electrolytic AX-BX-H2O
system, following by an examination of salt-cooling crystallization
possibilities. The second level determines feasible processes by the
communication of a feed-system with the environment through a stream of
evaporated water, or introduced water with introduced crystallized BX salt.
The third level determines the value intervals of the variables for feasible
processes. The methodological logic and possibilities for the created process
simulator are demonstrated on examples of sodium sulphate separation from the
NaCl-Na2SO4-H2O system, using different salt concentrations within the feed
system.
Formalized methodology for the separation of three component electrolytic systems: Partial separation of the system
