Method of producing metal from metal oxides

Details Method of producing metal from metal oxides Method of producing metal from metal oxides

1976-03-24

1978-02-07

Satterfield, Walter R.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 21, 75 38, 75 41, 266182, C21B 1100

Patent

active

040725049

ABSTRACT:
The present invention relates to a method for producing metal from metal oxides, especially iron from iron oxides by a pre-reduction as well as final reduction wherein the pre-reduced oxidic material as well as optional slag formers and optional recirculated gas are injected at the bottom through tuyeres or the like by means of a carrier gas, inert or reducing of a reactor resembling a shaft furnace filled with solid reducing agent during simultaneous supplying of energy, e.g. in the form of oxygen gas and hydrocarbon, the oxidic material being blown against a pillar of solid reducing agent at such a level that essentially all injected solid material is retained (e.g. by galling) on the lower end of the pillar to bring the oxidic material to instantaneous final reduction, melting and possible alloying of the reduced metal.

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patent: 3970290 (1976-07-01), Santen et al.

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