Process for the direct reduction of iron ores

Details Process for the direct reduction of iron ores Process for the direct reduction of iron ores

1979-03-09

1981-02-03

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 91, C21B 1302

Patent

active

042486238

ABSTRACT:
A process for the direct reduction of iron ore in a shaft furnace having an upper reducing zone and a lower cooling zone in which reducing gas is introduced to the furnace at the bottom of the reducing zone around the periphery of the furnace, exhausted reducing gas or top gas is removed from the top of the furnace, cleaned, mixed with additional hydrocarbons, and reinjected into the furnace below the reducing zone. The hot reducing gas is injected serially into different sectors of the cross-section of the furnace and at varying velocities to force upflowing cleaned top gas to change its flow path or its flow rate, or both, periodically. Apparatus for accomplishing the method is also disclosed.

REFERENCES:
patent: 2591789 (1952-04-01), De Jahn
patent: 3098738 (1963-07-01), Madaras
patent: 4046557 (1977-09-01), Beggs
patent: 4118017 (1978-10-01), Hendrickson

Affiliated with

Also associated with

Rating

Process for the direct reduction of iron ores does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the direct reduction of iron ores, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the direct reduction of iron ores will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-549015