METHOD OF POROUS GRANULATED AMMONIUM NITRATE PRODUCING Russian patent published in 2016 - IPC C01C1/18 C06B31/28 

FIELD: chemistry.

SUBSTANCE: method involves preparing ammonium nitrate solution, adding to obtained solution of first part of stabilising additive, represented by mixture of phosphoric and sulphuric acid ammonium salts or acids and their neutralisation with ammonia, evaporating obtained solution to state of melt, adding surfactant, porophore additive and second part of the stabilising additive to obtained melt, represented by magnesium nitrates, calcium or iron that is followed by granulation. First and second parts of stabilising additive ingredients, taken in stoichiometric ratio, in granulation form insoluble carrier and ammonium nitrate as a result of exchange reaction.

EFFECT: invention provides high static strength, low caking and residual moisture content, high stability of granules to thermal heating-cooling cycles.

1 cl, 3 tbl, 13 ex