Process of recovering molten pig iron or steel pre-products from

Details Process of recovering molten pig iron or steel pre-products from Process of recovering molten pig iron or steel pre-products from

1988-07-20

1990-01-23

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 38, 75 43, 75 44S, 75 58, 75 40, C22B 110

Patent

active

048955930

ABSTRACT:
This is disclosed a process of recovering molten pig iron or steel pre-products from lumpy iron-oxide containing charging substances. The charging substances are reduced to sponge iron in a direct reduction zone, the sponge iron is smelted in a meltdown gasifying zone under supply of carbon carriers and oxygen-containing gas forming a coal fluidized bed, and CO and H.sub.2 containing reduction gas is produced, which is injected into the direct reduction zone and reacted there. For the commercial utilization of low-quality scrap grades, such as, e.g., automotive scrap,

REFERENCES:
patent: 4007034 (1977-02-01), Hartwig et al.
patent: 4111687 (1978-09-01), Syska
patent: 4317677 (1982-03-01), Weber et al.
patent: 4566902 (1986-01-01), Sulzbacher et al.

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