FIELD: construction.
SUBSTANCE: method includes mixing solutions of ammonium nitrate and sulfate at the ratio that provides for the specified content of sulfate sulphur in a fertiliser, introduction of a modifying additive, steaming of the mixed solution at the finished temperature of the produced suspension that does not exceed 155°C, granulation of suspension. The suspension prior to granulation is soaked during mixing for at least 30 minutes and steamed at the finished temperature of 186-198°C. Granulation is carried out by prilling method.
EFFECT: invention makes it possible to produce a fertiliser that does not become caked when stored even without treatment of granules with amino-oil mix.
4 cl, 1 ex
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Authors
Dates
2012-01-20—Published
2010-06-30—Filed