Recovery of steel from high phosphorous iron ores

Details Recovery of steel from high phosphorous iron ores Recovery of steel from high phosphorous iron ores

C - Chemistry, Metallurgy

21

B

53/24

C21B 13/02 (2006.01) C21B 13/14 (2006.01)

Patent

CA 1149175

Abstract of the Invention The production of relatively low phosphorous, semi- finished steel from blended presized granules of high phospho- rous iron ore and limestone, directly and selectively reducing the iron ixide to sponge iron and calcined lime with the current of hot reducing gases in a shaft furnace, charging heated granules directly to a melting furnace to obtain semifinished steel and slagging off phosphorous and other undesirable com- ponents and thereafter refining the semifinished steel in a con- ventional electric furnace.

347948

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