Principle of operation :
Crystallization allows the separation, from a solution, of one or more solid compounds dissolved in this solution.
During the separation, the dissolved compounds pass to the solid state when the operating conditions are required (temperature, concentration). The crystals formed are then separated from the liquid phase by filtration.
The crystallization is obtained by partial evaporation of the solvent and then cooling of the concentrated solution obtained.
The feed of the initial solution is continuous, the evaporation of the solvent is continuous, the crystallization takes place continuously while the collection of the crystals obtained with the saturated stock solution is done semi-continuously; the step of separating the crystals from the stock solution is carried out in a bag filter under reduced pressure.
Experimental parameters studies following :
Continuous crystallization of a solution by evaporation and cooling.
Influence of the operating conditions on the crystallization of a solution.