Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1975-12-22
1977-10-18
Rosenberg, Peter D.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 26, 75 33, B22F 100
Patent
active
040544435
ABSTRACT:
A method for preparing iron powder for powder metallurgy and other applications from particulate iron oxide by reducing the particle size of at least part of the particulate feed material chemically reducing the feed material to increase the percentage of metallization by contact with a gaseous reductant in a shaft furnace at high temperatures, and removing the reduced iron powder product from the furnace. Preferably the product is screened and oversized material is returned to the furnace for additional reduction. An alternative method contemplates additional steps of grinding, and further decrepitation to reduce the particle size of the larger particle fractions.
REFERENCES:
patent: 3347659 (1967-10-01), Volk
patent: 3877931 (1975-04-01), Neskorg
patent: 3910785 (1975-10-01), Greene
Dougherty Ralph H.
Midrex Corporation
Rosenberg Peter D.
LandOfFree
Method of preparing iron powder 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 of preparing iron powder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of preparing iron powder will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1445341