Process for the production of steel from fine ore hot briquetted

Details Process for the production of steel from fine ore hot briquetted Process for the production of steel from fine ore hot briquetted

1989-10-16

1990-08-07

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 38, 75 40, 75256, 266160, 266172, C22B 514

Patent

active

049464981

ABSTRACT:
Fine ore is reduced in a circulating fluidized bed by a reduction gas in the presence of fine coal, the discharged mixture of iron sponge particles and fine coal is subjected to hot compacting and then fed to a melting vessel in which oxygen is injected into the molten material through nozzles. The melting vessel can also be supplied with scrap which has been pre-heated by the hot waste gases from the melting vessel, in a scrap pre-heater which is fitted onto the melting vessel.

REFERENCES:
patent: 4178170 (1979-12-01), Iacotti et al.
patent: 4852859 (1989-08-01), Weber

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