PROCESS FOR PRODUCTION OF NITROGEN-POTASSIUM FERTILIZERS Russian patent published in 2000 - IPC

FIELD: inorganic fertilizers. SUBSTANCE: potassium chloride (1.66-9.9 wt %) is mixed with molten urea, resultant mixture is granulated in gas flow from which granules are trapped by jets of liquid, in particular, by jets of aqueous solution of the same fertilizer, ratio of velocity heads of liquid and gas jets being maintained within a range of 3650-9980 and weight ratio of amounts of potassium in aqueous solution and gas flow within a range of 22-250. Fertilizer contains 1-5.94 wt % K₂O and 41.4- 45.2 wt % N. EFFECT: increased operation time before equipment failure. 5 cl, 1 tbl