The article deals with drying of fluidized bed ionex-exchanger by mixed fluidized layer and its influence on the total drying time. The goal is to demonstrate a positive effect of mixed bed, to find the optimal parameters (type of stirrer, speed and size of stirrer). Experiments are conducted at drying chamber in batch operation. The objective is to evaluate finally the effect of mixing on total drying time. We proved a decrease of drying time up to 40 %.