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2 085 550

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C1

(51)

IPC

(21) (22)

Application

96108505/25, 1996-04-30

(22)

Actual filing date

1996-04-30

(45)

Published

1997-07-27

(72)

Inventor

Dolgov V.V.Doroshenko V.V.Zhiljakova N.B.Rodin V.N.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa

METHOD OF CONDITIONING GRANULATED MINERAL FERTILIZERS TO PREVENT THEIR CONGLOMERATION Russian patent published in 1997 - IPC

Abstract RU 2085550 C1

FIELD: fertilizers. SUBSTANCE: invention is aimed at preventing agglomeration of mineral fertilizers in the course of production, storage, and transportation. Aim is achieved by covering fertilizer granule surface with dispersed drops of detergent mixture of sulfonaphthenic acids neutralized to pH 5-8 taken in amount 0.01-0.08% based on fertilizer weight thereby rendering fertilizer fully friable. Neutralization of detergent mixture is performed with ammonia, or aqueous ammonia, or their combination with zinc compounds (oxide, hydroxide or carbonate). EFFECT: reduced cost in comparison with using other surfactants. 3 cl, 1 tbl

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RU 2 085 550 C1

Authors

Dolgov V.V.

Doroshenko V.V.

Zhiljakova N.B.

Rodin V.N.

Dates

1997-07-27—Published

1996-04-30—Filed

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