FERTILIZER BASED ON UREA AND AMMONIUM NITRATE Russian patent published in 2020 - IPC C05C1/02 C05C9/00 C05D9/02 

FIELD: agriculture.

SUBSTANCE: fertilizer, in which elementary sulfur particles are dispersed in a solution of urea and ammonium nitrate in water and which contains urea in amount of 26 to 34 wt %, ammonium nitrate in amount of 34 to 45 wt %, elemental sulfur in amount of 1 to 15 wt % and a stabilizer in amount of 0.1 to 15 wt %, where the stabilizer is an anionic surfactant. Method of producing fertilizer involves the steps of: (i) obtaining a dispersion of elementary sulfur particles in urea and (ii) mixing a dispersion of elementary sulfur particles in urea with an aqueous solution of ammonium nitrate and/or nitric acid and optionally with ammonia, where an anionic surfactant is added at step (i) and/or (ii).

EFFECT: invention enables to provide fertilizer which can deliver nitrogen and sulfur into the soil and can be used for diluted aqueous solutions of urea and ammonia (known as scrubber liquid).

9 cl