Cooling Crystallization Plants

Cooling crystallization is mainly used for salts with a decreasing solubility at decreasing temperature. An almost saturated solution enters the crystallizer K or its circulation line. Here, it mixes with the circulated solution and is only slightly cooled in the cooler WT, so that spontaneous germ formation and encrustation of the tubes is minimized. In the crystallizer K, supersaturation is then reduced by crystal growth. From there, the suspension is pumped to the cyclone ZY with the suspension pump SP for thickening. The liquid is then separated in the centrifuge Z. The salt is dried in dryer T.