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2 116 991

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IPC

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Application

97113141/25, 1997-08-13

(22)

Actual filing date

1997-08-13

(45)

Published

1998-08-10

(72)

Inventor

Golovanov V.G.Petrovskij A.A.Vasil'Eva N.Ja.Chernenko Ju.D.Angelov A.I.Brodskij A.A.Kazak V.G.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

METHOD OF PRODUCING PHOSPHORUS FERTILIZERS Russian patent published in 1998 - IPC

Abstract RU 2116991 C1

FIELD: inorganic fertilizers. SUBSTANCE: raw phosphate material is decomposed by acid solutions while simultaneously being ground on ball mill for 45-90 min, after which product is granulated. In the ball mill, drum rotation speed is 0.3-0.8 ncr, where ncr is arbitrary critical speed, and filling rate of the mill with balls is ϕ = 0.2-0.3, where ϕ is ratio of the mill volume occupied by balls before operation to the total mill volume. EFFECT: increased productivity and reduced power consumption.

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RU 2 116 991 C1

Authors

Golovanov V.G.

Petrovskij A.A.

Vasil'Eva N.Ja.

Chernenko Ju.D.

Angelov A.I.

Brodskij A.A.

Kazak V.G.

Dates

1998-08-10—Published

1997-08-13—Filed

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