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2 088 554

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C1

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IPC

(21) (22)

Application

94035237/25, 1994-09-21

(22)

Actual filing date

1994-09-21

(45)

Published

1997-08-27

(72)

Inventor

Orlova M.A.Gorshkova N.V.Gor'Kov T.N.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa

METHOD OF PRODUCING LIQUID NITROGEN FERTILIZER Russian patent published in 1997 - IPC

Abstract RU 2088554 C1

FIELD: fertilizers production. SUBSTANCE: hot 66-78% urea solution is treated with nitric acid to completely neutralize ammonia and then mixed with conversion 89-94% solution of ammonium nitrate containing 0.005-0.01% phosphorus pentoxide. Mixture is cooled to 40 C and residual ammonia (exceeding 0.03%) is removed from fertilizer using ejection ventilation. Final product contains at least 32% of nitrogen and exhibits desalting temperature -12 C. EFFECT: improved procedure. 1 tbl

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RU 2 088 554 C1

Authors

Orlova M.A.

Gorshkova N.V.

Gor'Kov T.N.

Dates

1997-08-27—Published

1994-09-21—Filed

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