Manufacture of steel from ores containing high phosphorous and o

Details Manufacture of steel from ores containing high phosphorous and o Manufacture of steel from ores containing high phosphorous and o

1979-03-27

1981-01-13

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 6, C21B 1100

Patent

active

042447321

ABSTRACT:
The production of relatively low phosphorous, semifinished steel from blended presized granules of high phosphorous iron ore and limestone, directly and selectively reducing the iron oxide 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 components and thereafter refining the semifinished steel in a conventional electric furnace.

REFERENCES:
patent: 519901 (1894-05-01), Barton
patent: 890233 (1908-06-01), Jones
patent: 1299072 (1919-04-01), Walker
patent: 1846234 (1932-02-01), van Royen
patent: 2014873 (1935-09-01), Wildman
patent: 2028105 (1936-01-01), Head
patent: 2266816 (1941-12-01), Ruzicka
patent: 2871115 (1959-01-01), Agarwal

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