METHOD OF CONDUCTION OF BLAST-FURNACE SMELTING Russian patent published in 1997 - IPC

Abstract RU 2087538 C1

FIELD: metallurgy; applicable in smelting of pig iron in blast furnace. SUBSTANCE: the offered method includes charging into blast furnace of fuel, iron ore materials and ferrite-calcium flux made from wastes of metallurgical plants and containing total iron above 50%, SiO₂ from 1.0-7.0: with CaO/Fe₂O₃ ratio within 0.15 to 0.55. Use of ferrite-calcium flux in blast furnace burden with high content of nonfluxed pellets provides for high content of iron in blast-furnace burden, the needed basicity of slag, less consumption of iron-ore material and saving of coke. EFFECT: higher efficiency. 1 tbl

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RU 2 087 538 C1

Authors

Khajdukov V.P.

Babaev Eh.D.

Babaev M.D.

Dates

1997-08-20—Published

1996-12-19—Filed