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2 148 555

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Application

99103706/02, 1999-02-22

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Start date

1999-02-22

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Actual filing date

1999-02-22

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Published

2000-05-10

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Inventor

Mizin V.G.Dobosh V.G.Sirina T.P.Komratov Ju.S.Kuzovkov A.Ja.Il'In V.I.Chernushevich A.V.

(73)

Holder

Oao Metallurgicheskij Kombinat"

METHOD FOR PRODUCTION OF VANADIUM PENTOXIDE Russian patent published in 2000 - IPC

Abstract RU 2148555 C1

FIELD: nonferrous metallurgy. SUBSTANCE: method of preparing vanadium pentoxide from solutions or pulp obtained from baked monoprocess slags includes leaching of vanadium from slag, filtration and purification of solution, precipitation of vanadium pentoxide, addition to solution of complex precipitator containing aluminum and ferric compounds and alkali-earth metal carbonates in amounts ensuring ratios of aluminum and iron (in precipitator) and alkali-earth metal (in carbonate) to silicon oxide expressed as (0.20-0.25): (0.03-0.04): (0.06-0.08):1, respectively. Complex precipitator can be added to pulp. EFFECT: reduced level of impurities (silicon and phosphorus) in product. 2 cl, 1 tbl

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RU 2 148 555 C1

Authors

Mizin V.G.

Dobosh V.G.

Sirina T.P.

Komratov Ju.S.

Kuzovkov A.Ja.

Il'In V.I.

Chernushevich A.V.

Dates

2000-05-10—Published

1999-02-22—Filed

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