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2 228 919

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Application

2003111195/15, 2003-04-21

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Start date

2003-04-21

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Actual filing date

2003-04-21

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Published

2004-05-20

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Inventor

Maklashina E.A.Grosheva L.P.Gorshkova N.V.Cherkasova T.N.Nikolaeva I.I.Milovanov V.A.Pestov A.E.Samsonov Ju.K.Lysenko E.V.Balagurov A.V.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo G. Velikij Novgorod

METHOD FOR PREPARING AMMONIUM-NITRATE FERTILIZER Russian patent published in 2004 - IPC

Abstract RU 2228919 C1

FIELD: fertilizers, chemical technology. SUBSTANCE: invention relates to technology for preparing homogeneous mineral fertilizers based on ammonium nitrate and can be used in plants manufacturing ammonium nitrate for preparing ammonium-nitrate fertilizer comprising 10-15 wt.-% of calcium nitrate and 90% of ammonium nitrate, not above. Method involves addition of a component as 49-56% calcium nitrate an aqueous solution with pH value = 6.5-7.5 and content of water-insoluble impurities 0.05%, not above, in the amount 10-15% of Ca(NO3)2 to 85-93% ammonium nitrate solution prepared by neutralization of ammonia with nitric acid or by conversion of calcium nitrate before evaporation stage to the ratio NH4NO3 : Ca(NO3)2 in fertilizer = (5.7-9): 1. Granulation is carried out by the prilling method. The prepared fertilizer exhibits high physical- chemical, agrochemical indices and reduced capacity for thermal decomposition. EFFECT: improved preparing method. 1 tbl

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RU 2 228 919 C1

Authors

Maklashina E.A.

Grosheva L.P.

Gorshkova N.V.

Cherkasova T.N.

Nikolaeva I.I.

Milovanov V.A.

Pestov A.E.

Samsonov Ju.K.

Lysenko E.V.

Balagurov A.V.

Dates

2004-05-20—Published

2003-04-21—Filed

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