Method for producing metallic iron pellets

Details Method for producing metallic iron pellets Method for producing metallic iron pellets

1975-09-08

1977-09-20

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 91, C21B 1300

Patent

active

040494403

ABSTRACT:
A method of producing metallic iron pellets in a generally vertical furnace in which a gravitational flow of particulate material is reduced in a reducing zone by a countercurrent flow of a reducing gas containing a reductant, the spent reducing gas is removed and cooled and a portion is introduced as cooling gas in a cooling zone near the bottom of the furnace, and a portion of the cooling gas is upgraded in reducing potential and introduced to the reducing zone as reducing gas.

REFERENCES:
patent: 3764123 (1973-10-01), Beggs et al.
patent: 3816101 (1974-06-01), Beggs et al.

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