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2 019 307

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C1

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IPC

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Application

5043290/26, 1992-05-25

(22)

Actual filing date

1992-05-25

(45)

Published

1994-09-15

(72)

Inventor

Spitsyn V.А.Lomazov V.S.Кulygin S.В.Кorovin Ju.F.Сhuprinko V.G.Zubrovskij А.V.Оvchinnikova К.N.

(73)

Holder

Рroizvodstvennoe Ob"Edinenie Khimicheskij Zavod"

METHOD OF COMPLEX FERTILIZER MAKING Russian patent published in 1994 - IPC

Abstract RU 2019307 C1

FIELD: fertilizers. SUBSTANCE: method involves decomposition of phosphate raw with nitric acid, feeding of suspension prepared for neutralization at the ratio of CaO:CaO:P2O5=(1,3-1,5):1 = (1.3-1.5):1. Neutralization is carried out up to attainment of ratio between tri- and dicalcium phosphate in pulp at the range 1:(8-13). Prepared pulp is granulated and product is dried. EFFECT: improved method of fertilizer preparing. 1 tbl

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RU 2 019 307 C1

Authors

Spitsyn V.А.

Lomazov V.S.

Кulygin S.В.

Кorovin Ju.F.

Сhuprinko V.G.

Zubrovskij А.V.

Оvchinnikova К.N.

Dates

1994-09-15—Published

1992-05-25—Filed

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