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2 012 597

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IPC

(21) (22)

Application

4820541/02, 1990-05-03

(22)

Actual filing date

1990-05-03

(45)

Published

1994-05-15

(72)

Inventor

Muradjan O.S.Sharafutdinov V.L.Valeeva R.G.Ivanov S.N.Rozhentsev V.V.Masljukov N.I.

(73)

Holder

Muradjan Ovanes Sarkisovich

METHOD OF SMELTING OF CHROME AND CHROME-NICKEL STEEL Russian patent published in 1994 - IPC

Abstract RU 2012597 C1

FIELD: metallurgy. SUBSTANCE: high-basic slag is formed during melting containing 10-20% iron oxide. Melt temperature is brought about to 1530-1600 C, and then slag is treated with carbon-containing reducing agent up to the content of iron oxide 0.5-0.7% , and slag is removed before blowing through with oxygen-containing gas. Chrome losses as Cr₂O₃ with slag are decreased by 2.9 kg/t, melting period is shortened by 6.2% . EFFECT: improved method of steel smelting. 1 tbl

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RU 2 012 597 C1

Authors

Muradjan O.S.

Sharafutdinov V.L.

Valeeva R.G.

Ivanov S.N.

Rozhentsev V.V.

Masljukov N.I.

Dates

1994-05-15—Published

1990-05-03—Filed