Method for reduction of material containing metal oxide using a

Details Method for reduction of material containing metal oxide using a Method for reduction of material containing metal oxide using a

1989-03-15

1990-12-11

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75453, 75502, 75639, 75629, C22B 110, C22B 514

Patent

active

049767763

ABSTRACT:
A method and apparatus for producing, in a reactor, a suitable prereduced product for final reduction from material containing metal oxide. The material is preheated in a fluidized bed by means of hot gases from a subsequent prereduction stage. The hot material is smelted and prereduced in a flame chamber utilizing hot reducing gases from a subsequent final reduction stage. The prereduced material is completely reduced in the final reduction stage.

REFERENCES:
patent: 3033673 (1962-05-01), Collin et al.
patent: 3997333 (1976-12-01), Fey
patent: 4073642 (1978-02-01), Collin et al.
patent: 4087274 (1978-05-01), Edenwall et al.
patent: 4359212 (1982-11-01), Bengtsson et al.
patent: 4566904 (1986-01-01), von Bogdandy et al.

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