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2 041 278

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Application

93025287/02, 1993-05-13

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Actual filing date

1993-05-13

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Published

1995-08-09

(72)

Inventor

Tarabrin G.K.Rabinovich E.M.Birjukova V.A.Tarabrina V.P.Kuz'Michev S.E.Chekalin V.V.

(73)

Holder

Aktsionernoe Obshchestvo

METHOD OF VANADIUM EXTRACTION Russian patent published in 1995 - IPC

Abstract RU 2041278 C1

FIELD: hydrometallurgy. SUBSTANCE: method involves extraction of vanadium by weak-acid leaching at pH 3.01-3.6, at 71-85 C from calcined vanadium-containing materials with calcium-containing reaction addition in oxidative medium followed by acid additional extraction and hydrolysis of obtained solutions. Proposed method ensures to decrease vanadium loss with dump slime by 20-40% to get additional production with output 350 t per a year and to enhance output of process. EFFECT: improved method of extraction. 2 tbl

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RU 2 041 278 C1

Authors

Tarabrin G.K.

Rabinovich E.M.

Birjukova V.A.

Tarabrina V.P.

Kuz'Michev S.E.

Chekalin V.V.

Dates

1995-08-09—Published

1993-05-13—Filed

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