Method of making hot metals with totally recycled gas

Details Method of making hot metals with totally recycled gas Method of making hot metals with totally recycled gas

1993-12-16

1995-05-09

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

C21B 1314

Patent

active

054136229

ABSTRACT:
A method is provided to improve the production of hot direct reduced iron in a melter-gasifier; reduction furnace system. All of the reduction gas produced in the melter gasifier and the top gas produced in reduction furnace which has been stripped of CO.sub.2 are recycled to the reduction furnace. The reduction furnace is sized to process all this gas and bypassed direct reduced iron may result.

REFERENCES:
patent: 5043011 (1991-08-01), Hauk
patent: 5185032 (1993-02-01), Whipp
Fleichtner, Hanns et al., "The Corex Process" Skillings' Mining Review Jan. 14, 1989 pp. 20-27.

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