FIELD: chemical technology, mineral fertilizers. SUBSTANCE: method involves interaction of nitric acid and ammonia at preliminary heating the parent reagents, neutralization of nitric acid with ammonia, producing ammonium nitrate solution and liquor vapor followed by its separation. Liquor vapor is fed to the line of "tail" gas in nitric acid production that is added after absorption column on turbine, preferably, before refining reactor. Neutralization is carried out under pressure 1.1 MPa and temperature 230 C. EFFECT: improved method of production. 3 cl, 1 dwg
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Authors
Dates
1997-08-10—Published
1995-07-11—Filed