Production of direct reduced iron with reduced fuel consumption

Details Production of direct reduced iron with reduced fuel consumption Production of direct reduced iron with reduced fuel consumption

1997-06-16

1999-09-14

Andrews, Melvyn

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

266145, 266177, C21B 1308

Patent

active

059517409

ABSTRACT:
A system for producing direct reduced iron wherein iron oxide material and carbonaceous material is passed successively through an oxidizing zone and a reducing zone of a furnace, each zone fired by oxy-fuel combustion, enabling a reduction in the amount of fuel needed to process the material while generating sufficient carbon monoxide to effect the reduction and ensuring that little or no carbon monoxide is emitted from the furnace.

REFERENCES:
patent: 5567224 (1996-10-01), Kundrat
patent: 5730775 (1998-03-01), Meissner et al.
Feinman, "Iron by Direct Reduction", Encyclopedia of Chemical Technology, vol. 13, pp. 754-763 (1981).
Hanewald et al., "Recovery of Metals from Steel Wastes and Production of DRI by the INMETCO Process", Iron and Steel Engineer, pp. 62-67 (Mar., 1985).
Tennies et al., "The Midrex Fastmet Process, a Simple Economic Ironmaking Option", Metallurgical Plant and Technology International, pp. 36-42 (Feb., 1991).

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