Method and apparatus for reducing particulate iron oxide to meta

Details Method and apparatus for reducing particulate iron oxide to meta Method and apparatus for reducing particulate iron oxide to meta

1977-09-28

1979-02-20

Lake, Roy

Metallurgical apparatus

With recording, indicating, inspection or measuring means

13 23, 266156, 266197, C21B 106

Patent

active

041403010

ABSTRACT:
A method and apparatus for reducing particulate iron oxide to metallic iron utilizing solid carbonaceous fuel as reductant in a shaft type reducing furnace, in which a furnace burden is formed of a mixture of iron oxide lumps or pellets and particulate solid fuel. Reacted top gas is upgraded and recirculated through the burden in counter-flow relationship thereby heating and partially reducing the burden. The heat for final reduction is generated by passing electric current through the burden.

REFERENCES:
patent: 1937064 (1933-11-01), Moore
patent: 2862808 (1958-12-01), De Jahn
patent: 2865732 (1958-12-01), Jensen
patent: 3204941 (1965-09-01), Fraser
patent: 3427013 (1969-02-01), Cavanagh
patent: 3632100 (1972-01-01), Schneider
patent: 3764123 (1973-10-01), Beggs et al.
patent: 3767379 (1973-10-01), Marion

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