FIELD: chemistry.
SUBSTANCE: process of production solid ammonium sulfate-nitrate envisages the steps: solidifying of melt pulp, containing ammonium sulfate and ammonium nitrate in granulation bed to form solid ammonium sulfate-nitrate granules, containing ammonium sulfate-nitrate double salt 2:1, wherein the granulation layer has an operating temperature of 90 to 120°C, and solid ammonium sulfate-nitrate granules are characterised by moisture content of 0.4 wt % up to 1.5 wt %, while productional ammonium sulfate-nitrate contains less than 7 wt % of unreacted ammonium nitrate and 3:1 ammonium sulfate-nitrate double salt.
EFFECT: invention makes it possible to obtain product for further use as a fertiliser that is characterised by reduced sensitivity to moisture and is not considered as hazardous material.
6 cl, 4 dwg, 2 ex
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