Method of reducing iron oxide

Details Method of reducing iron oxide Method of reducing iron oxide

1975-03-20

1976-11-23

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 26, C21C 552, C22B 110

Patent

active

039934730

ABSTRACT:
Iron ore particles are partially reduced by passing through a rotary kiln countercurrent to flowing hydrogen and carbon monoxide. The partially reduced ore is then fed into a plasma arc torch wherein the reduction is completed. The off-gas from the arc torch is reacted with methane to reform the water vapor in the off-gas into hydrogen and carbon monoxide which are used to partially reduce the iron ore particles in the rotary kiln.

REFERENCES:
patent: 2805930 (1957-09-01), Udy
patent: 2894831 (1959-07-01), Old
patent: 3140168 (1964-07-01), Halley
patent: 3163520 (1964-12-01), Collin
patent: 3163521 (1964-12-01), Rinesch
patent: 3475160 (1969-10-01), Heinzelmann
patent: 3761244 (1973-09-01), Hoffert
patent: 3770421 (1973-11-01), Celada

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