Treatment of granular phpsphate with a multi-stage fluid-bed cooler

Abstract

Heat-exchange equipment is known to play a very important role in chemical industry. Two processes are used to produce phosphate fertilizers: run-of-pile and granular. The granular process uses lower-strength phosphoric acid (40%, compared to 50% for run-of-pile). The reaction mixture, a slurry, is sprayed onto recycled fertilizer fines in a granulator. Granules grow and are then discharged to the screen, crusher, cooler and sent to storage. Thus, the multistage fluidized bed can be used for granular solids cooling. But the solid particles do not reach the thermal equilibrium due to relatively short residence time in cooler. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/5669