Process for the manufacture of steel

Details Process for the manufacture of steel Process for the manufacture of steel

1994-04-06

1995-11-14

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75502, 75957, C21B 1314

Patent

active

054662788

ABSTRACT:
The invention describes a process for the manufacture of steel with a carbon content of <0.8 wt.-% by reducing iron ore and refining the hot metal. Iron ore and fuel are introduced into the reduction zone of a reactor that contains an iron melt in the reduction zone. This melt is covered by a liquid slag layer from which liquid slag is withdrawn. Further, oxygen-containing gas together with fuel is blown into the iron melt contained in the reduction zone. The iron melt extends into the refining zone of the reactor, the slag layer flows from the refining zone into the reduction zone and in the refining zone liquid steel is withdrawn. Oxygen-containing gas is supplied to the iron melt contained in the refining zone and liquid iron is withdrawn therefrom.

REFERENCES:
patent: 3326671 (1967-06-01), Worner
patent: 4540432 (1985-09-01), Hirsch et al.
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