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2 026 849

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IPC

(21) (22)

Application

5063053/26, 1992-05-18

(22)

Actual filing date

1992-05-18

(45)

Published

1995-01-20

(72)

Inventor

Babkin V.V.Brodskij A.A.Kolpakov Ju.A.Shchekoturov A.S.Rezen'Kov M.I.Korjakov V.V.Kucha M.I.Vakhrameev V.P.Syrchenkov A.Ja.

(73)

Holder

Cherepovetskoe Aktsionernoe Obshchestvo Otkrytogo Tipa

METHOD OF DIAMMONIUM PHOSPHATE PRODUCING Russian patent published in 1995 - IPC

Abstract RU 2026849 C1

FIELD: chemical technology. SUBSTANCE: phosphoric acid solution at molar ratio 0.4-0.75 is neutralized with ammonia, prepared pulp is treated in autoclave with ammonia at 110-150 C under pressure 1.0-2.5 ati up to the molar ratio 1.05-1.45 and fed to the second stage of neutralization following by granulation and drying into a single apparatus. Source of phosphoric acid solution at molar ratio 0.4-0.75: absorption flows can be used. Product is used in agriculture. EFFECT: improved method of product producing. 2 cl

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RU 2 026 849 C1

Authors

Babkin V.V.

Brodskij A.A.

Kolpakov Ju.A.

Shchekoturov A.S.

Rezen'Kov M.I.

Korjakov V.V.

Kucha M.I.

Vakhrameev V.P.

Syrchenkov A.Ja.

Dates

1995-01-20—Published

1992-05-18—Filed