• crystallization
• SLE diagram
• solid liquid equilibria
• ternary diagram

The present thesis deals with crystallization as an alternative method to separate a homogenous binary solution for an industrial application.
It is focused on the achievement of accurate solid–liquid equilibrium data, in order to evaluate process design options and operational mode. In particular, this work researches a third compound to be added to the binary solution; this compound should be able to change the phase diagram of the ternary system, in order to increase the yield. Although still far away from designing the whole process, this thesis intends to verify the feasibility of a potential process and to lay the foundation for the final design of a potential crystallization step.

The present thesis was carried out at Evonik Industries in the Department of Process Technology Engineering – Fluid Processing, in Marl (Germany).