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2 102 511

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Application

96109760/02, 1996-05-21

(22)

Actual filing date

1996-05-21

(45)

Published

1998-01-20

(72)

Inventor

Tarabrin G.K.Birjukova V.A.Rabinovich E.M.Chekalin V.V.Merzljakov N.E.Kuz'Michev S.E.Tartakovskij I.M.Frolov A.T.Volkov V.S.Tarabrina V.P.Savost'Janov V.S.Chutchikov V.N.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa

METHOD OF RECOVERING VANADIUM Russian patent published in 1998 - IPC

Abstract RU 2102511 C1

FIELD: nonferrous metallurgy. SUBSTANCE: invention relates to recovering vanadium from slags involving lime-sulfuric acid technique. Low-acidic leaching is performed stepwise: in the first step, leaching is conducted from acidic post-recovering vanadium to pH 3.2-4.4 adjusting pH, if necessary, with sulfuric acid; second step is conducted at pH 3.0-3.8; third step at pH 2.6-3.4; and process is terminated in fourth-seventh steps at pH 2.1-2.5. Etching temperature is maintained within the range 22 to 58 C. EFFECT: optimized parameters of process. 3 tbl

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RU 2 102 511 C1

Authors

Tarabrin G.K.

Birjukova V.A.

Rabinovich E.M.

Chekalin V.V.

Merzljakov N.E.

Kuz'Michev S.E.

Tartakovskij I.M.

Frolov A.T.

Volkov V.S.

Tarabrina V.P.

Savost'Janov V.S.

Chutchikov V.N.

Dates

1998-01-20—Published

1996-05-21—Filed

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