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2 145 355

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Application

97118966/02, 1997-11-11

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Actual filing date

1997-11-11

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Published

2000-02-10

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Inventor

Komratov Ju.S.Kuzovkov A.Ja.Arshanskij M.I.Chernushevich A.V.Il'In V.I.Mineev V.N.Korogodskij V.G.Jugov P.I.Zin'Ko B.F.Lebedev V.I.

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Holder

Oao Metallurgicheskij Kombinat"

METHOD OF STEEL MELTING IN CONVERTER Russian patent published in 2000 - IPC

Abstract RU 2145355 C1

FIELD: metallurgy, more specifically, steel melting in converter from vanadium iron. SUBSTANCE: method includes charging of scrap into converter; pouring of vanadium iron; supply of slag-forming materials, including lime; top blowing of melt with oxygen through submerged multinozzle lance; melt tapping from converter. In course of melting in (0.18-0.24)τ_bl since beginning of blowing, supplied to converter is mixture of chlorides of alkali-earth metals (Na,K)Cl with NaCl/KCl weight ratio of 0.3-0.7 and consumption of mixture within 1.5-2.5 kg/t of melt. In (0.3-0.34)τ_bl since beginning of blowing, slag is discharged from converter, and lime is supplied to converter in amount of 25-40 kg/t of melt, and blowing is continued up to heat completion, where τ_bl is duration of converter blowing. EFFECT: higher efficiency of process and its simplification, provided obtaining of vanadium pentoxide. 1 tbl, 1 ex

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RU 2 145 355 C1

Authors

Komratov Ju.S.

Kuzovkov A.Ja.

Arshanskij M.I.

Chernushevich A.V.

Il'In V.I.

Mineev V.N.

Korogodskij V.G.

Jugov P.I.

Zin'Ko B.F.

Lebedev V.I.

Dates

2000-02-10—Published

1997-11-11—Filed