Method for producing metallic iron particles

Details Method for producing metallic iron particles Method for producing metallic iron particles

1975-11-14

1977-09-06

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 34, C21B 1302

Patent

active

040465578

ABSTRACT:
A method of producing iron particles 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. Apparatus is also provided for carrying out the method.

REFERENCES:
patent: 2873183 (1959-02-01), Pike
patent: 3375099 (1968-03-01), Marshall
patent: 3764123 (1973-10-01), Beggs et al.
patent: 3816101 (1974-06-01), Beggs et al.

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