Physico-chemical properties lime-ammonium nitrate based on chalk, nitrate and ammonium sulphate

摘要

For the granulation of nitrate-sulfate-carbonate melt, the prilling method is applied using a granulation tower. The composition and properties of new types of fertilizers were studied. It is shown that with the ratio NH_(4)NO_(3): СаСО_(3): (NH_(4))_(2)SO_(4)= 100: 24: 1 the product contains 28,03% - N, 0,50% - SO_(3), 10% - СаО and has a granule strength of 6.03 MPa, which is much higher than the strength of pure NH_(4)NO_(3)granules (1.32 MPa). The absorption of pure AN granules is 4.82 g. With an increase in the proportion of chalk and ammonium sulfate to the NH_(4)NO_(3): СаСО_(3): (NH_(4))_(2)SO_(4)= 100: 24: 1 ratio, the absorbency of the LAN granules is 2.57g.