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2 088 528

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Application

95102772/25, 1995-02-28

(22)

Actual filing date

1995-02-28

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Published

1997-08-27

(72)

Inventor

Shirobokov O.A.Kostjuchenko S.S.Stepchenko A.G.Omel'Chenko E.V.Sylkina L.A.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Azot"

METHOD FOR PRODUCTION OF COPPER SULFATE Russian patent published in 1997 - IPC

Abstract RU 2088528 C1

FIELD: technology of production of salts, particularly, methods for production of copper sulfate. SUBSTANCE: proposed method involves decomposition of dead catalyst which takes place at uninterrupted mixing. The process is followed by filtration, thus obtained filtrate is evaporated till content of copper sulfate is 18.4-19.0 %. Then crystallization, separation of crystals and their drying are carried out. Mentioned above decomposition of dead catalyst which comprises copper and zinc compounds takes place with the help of sulfuric acid, weight ratio of solid and liquid phases being 1:(6-7) respectively. EFFECT: improved efficiency of the method. 3 tbl

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RU 2 088 528 C1

Authors

Shirobokov O.A.

Kostjuchenko S.S.

Stepchenko A.G.

Omel'Chenko E.V.

Sylkina L.A.

Dates

1997-08-27—Published

1995-02-28—Filed

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