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

1983-05-17

1985-12-03

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

C21B 1302

Patent

active

045564175

ABSTRACT:
The present invention relates to a process for the production of metallic iron through direct reduction of iron ores and particularly to an optimized process which permits operation at higher reducing temperatures with minimized problems of sinterization and agglomeration of iron ore particles. It is also an object of the present invention to provide a process wherein the required size of the reducing gas generating unit is reduced. Both objects are preferably achieved by means of injecting only natural gas, or a similar methane-containing gas into the cooling loop of the direct reduction process and venting a portion of the cooling gas from the cooling zone to the reducing zone (preferably, on the order of 1% to 2% of the methane content of the cooling gas in relation to the volume flow of the reducing gas).

REFERENCES:
patent: 2627455 (1953-02-01), Berg
patent: 3136623 (1964-06-01), Mader et al.
patent: 3375098 (1968-03-01), Marshall
patent: 3765872 (1973-10-01), Celada et al.
patent: 3779741 (1973-12-01), Celada et al.
patent: 4032120 (1977-06-01), Beggs
patent: 4042226 (1977-08-01), Beggs
patent: 4046557 (1977-09-01), Beggs
patent: 4049440 (1977-09-01), Beggs
patent: 4054444 (1977-10-01), Clark et al.
patent: 4067728 (1978-01-01), McKay
patent: 4087275 (1978-05-01), Beggs
patent: 4099963 (1978-07-01), McKay
patent: 4150972 (1979-04-01), Price-Falcon et al.
patent: 4248623 (1981-02-01), Pabst et al.
patent: 4253867 (1981-03-01), Price-Falcon et al.
patent: 4261734 (1981-04-01), Price-Falcon et al.
patent: 4268303 (1981-05-01), Kaneko et al.

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-1392911