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2 080 401

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C1

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Application

95112662/02, 1995-07-20

(22)

Actual filing date

1995-07-20

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Published

1997-05-27

(72)

Inventor

Tarabrin G.K.Birjukova V.A.Rabinovich E.M.Merzljakov N.E.Volkov V.S.Kuz'Michev S.E.Tarabrina V.P.Chekalin V.V.Savast'Janov V.S.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa

METHOD OF EXTRACTING VANADIUM FROM CONVERTER SLAG Russian patent published in 1997 - IPC

Abstract RU 2080401 C1

FIELD: nonferrous metallurgy. SUBSTANCE: in a method of extracting vanadium from vanadium-containing slag including oxidative firing thereof with calcium-containing additive, leaching of calcine, and hydrolysis of solution to produce paste of commercial-grade vanadium pentoxide, distinguishing feature is that above-mentioned paste is subjected to dilution in 3-10% ammonium sulfate solution at solids/liquid ratio 1:(3-10), pH 1.543-3.57 and temperature 25-97 C during 15-120 min followed by conveying diluted mother solutions into hydrolysis process maintaining ratio of solution after leaching of calcine to mother solution 10:(1-1). EFFECT: enhanced efficiency of process. 1 tbl

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RU 2 080 401 C1

Authors

Tarabrin G.K.

Birjukova V.A.

Rabinovich E.M.

Merzljakov N.E.

Volkov V.S.

Kuz'Michev S.E.

Tarabrina V.P.

Chekalin V.V.

Savast'Janov V.S.

Dates

1997-05-27—Published

1995-07-20—Filed

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