CRYSTALLIZATION CONDITIONS AND CRYSTAL HABITS OF POTASSIUM HALIDES IN INDUSTRIAL CRYSTALLIZERS

The crystallization of potassium halides has been carried out using cone-type fluidizing and mixing crystallizers operated as industrial crystallizers. Operational data obtained ove ten years were also analyzed. As a result, it became clear that there were limiting values in the degree of supersaturation for obtaining single crystals of good shape. The addition of habit modifiers resulted in an increase in the limiting degree of supersaturation and in the depression of agglomeration. The change of limiting degree of supersaturation and notable changes in the crystal habit also occurred upon pH control.