FIELD: manufacture of mineral fertilizers. SUBSTANCE: liquid nitrogen fertilizers are prepared by mixing aqueous solutions of carbamide and ammonium nitrate, partially evaporating and cooling the resulting mixture, carbon dioxide impurity is desorbed from mixture to residual content of 0.001-0.01 wt % and CO2 by counterflow contacting of mixture in vacuum at residual pressure of 10-40 kPa with steam vapors formed by partial evaporation of the mixture. Evaporation is carried out due to heat exchange thereof with the same mixture supplied for CO2 desorption. EFFECT: improved properties. 2 cl, 1 dwg
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