Method for reclaiming metal values from electric arc furnace flu

Details Method for reclaiming metal values from electric arc furnace flu Method for reclaiming metal values from electric arc furnace flu

1988-04-27

1989-06-06

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 3, C22B 108

Patent

active

048368474

ABSTRACT:
A method for the pyrometallurgical treatment of environmentally hazardous steelmill flue dust and sludges to separate and recover the volatile heavy metals from the flue dust material and to convert the remaining iron into recyclable directly reduced iron pellets, or disposable non-hazardous reoxidized iron pellets, or pig iron or shot and slag. The dust is mixed with solid carbonaceous reductant and a binder, pelletized, optionally dried, and reduced in an inclined rotary reduction smelter vessel. The distilled heavy metals are reoxidized and may be selectively segregated to reduce the gangue and lead oxide contamination from the reconcentrated zinc oxide dust. The reconcentrated heavy metal oxide dust is recycled by the zinc/lead industry.

REFERENCES:
patent: 3870507 (1975-03-01), Allen
patent: 4004918 (1977-01-01), Fukuoka
patent: 4396423 (1983-08-01), Stephens
patent: 4407672 (1983-10-01), Deuschle

Affiliated with

Also associated with

Rating

Method for reclaiming metal values from electric arc furnace flu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for reclaiming metal values from electric arc furnace flu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for reclaiming metal values from electric arc furnace flu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-38431