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2 241 057

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IPC

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Application

2003110273/02, 2003-04-09

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Start date

2003-04-09

(22)

Actual filing date

2003-04-09

(45)

Published

2004-11-27

(72)

Inventor

Gal'Perin L.L.Zajakin O.V.Ostrovskij Ja.I.Zhuchkov V.I.Kirichenko N.F.Zasypkin S.A.

(73)

Holder

Oao Zavod Ferrosplavov"Gosudarstvennoe Uchrezhdenie Institut Metallurgii Ural'Skogo Otdelenija Ran

BATCH FOR PRODUCING OF HIGH-CARBON FERROCHROME Russian patent published in 2004 - IPC

Abstract RU 2241057 C1

FIELD: iron metallurgy, in particular reprocessing of chrome containing materials.

SUBSTANCE: invention relates to method for reprocessing of chrome containing materials by reducing fusion in ore-smelting furnace. Claimed batch contains (mass %): briquettes from fines of high-grade ore (45-55 % of Cr₂O₃) 30-55; carbon reducing agent 11-15; silicium containing fluxing agents 2-6; and balance: low-grade ore (35-40 % of Cr₂O₃). Method is useful for reprocessing of low-grade chrome ore and low cost off-grade fines of high-grade ore to produce high-carbon ferrochrome containing more than 60 % of chrome.

EFFECT: batch of new composition.

1 tbl

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RU 2 241 057 C1

Authors

Gal'Perin L.L.

Zajakin O.V.

Ostrovskij Ja.I.

Zhuchkov V.I.

Kirichenko N.F.

Zasypkin S.A.

Dates

2004-11-27—Published

2003-04-09—Filed