Pelletization as a quality alternative for granulation of potassium and ammonium sulfate fertilizer

Abstract

Potassium and ammonium salts are necessary to meet the nutritional needs of crops. While the granulation of these materials has traditionally been done by roller compaction, the demand for a rounder and less angular product has led some fertilizer manufacturers to introduce an additional production line to their operations: pelletization (wet granulation) with a disc pelletizer. This paper presents possible alternatives in the production process of potassium and ammonium sulfate fertilizers, provided by the pelletization process.