Direct gaseous reduction of oxidic metal ores with dual temperat

Details Direct gaseous reduction of oxidic metal ores with dual temperat Direct gaseous reduction of oxidic metal ores with dual temperat

1976-01-02

1977-09-06

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 91, C21B 1302

Patent

active

040465560

ABSTRACT:
A process for the direct gaseous reduction of iron ore to sponge iron wherein the sponge iron is cooled with a carbon-containing cooling gas by a dual temperature procedure that increases transfer of carbon from the cooling gas to the sponge iron and thereby permits the production of a product having a combination of relatively low or moderate metallization and relatively high potential metallization. Increased productivity of the direct reduction plant and of the overall integrated steel plant are achieved.

REFERENCES:
patent: 2481217 (1949-09-01), Hemminger
patent: 2900247 (1959-08-01), Celada
patent: 3136624 (1964-06-01), Mader et al.
patent: 3423201 (1969-01-01), Celada et al.
patent: 3637368 (1971-01-01), Bessant
patent: 3788835 (1974-01-01), Lewis et al.
patent: 3890142 (1975-06-01), Celada et al.
patent: 3904397 (1975-09-01), Celada et al.

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