Process for producing reduced iron

Details Process for producing reduced iron Process for producing reduced iron

1981-04-30

1983-03-15

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

266156, C21B 1302

Patent

active

043766480

ABSTRACT:
In a direct reduction plant employing a shaft furnace for reducing iron ore and a steam reformer for producing a reducing gas from gaseous hydrocarbon compounds and provided with an installation for heating at least a part of the reducing gas to be supplied to said shaft furnace, either hydrogen sulfide or a material adapted to produce hydrogen sulfide within the reducing gas is added to the reducing gas system from outside of the system so that the concentration of hydrogen sulfide in the reducing gas at the inlet of said shaft furnace is 10 to 100 volume ppm.

REFERENCES:
patent: 4213777 (1980-07-01), Grebe et al.
patent: 4298190 (1981-11-01), MacKay

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