Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1978-10-30
1981-01-20
Rutledge, L. Dewayne
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75252, C21B 1304
Patent
active
042460255
ABSTRACT:
A chlorine source is provided in a reactor in combination with a ground oxidized ore and a particulate carbonaceous reductant. The amount of chlorine provided is significantly less than the stoichiometric requirements for reaction with the total iron content of the ore; the amount of the reductant is greater than that required to effect the reduction of the total iron content of the ore. The reactor is operative to retain the reaction gases in intimate contact with the feedstock mixture without significant dilution of said gases in order to provide a reducing atmosphere. The mixture is indirectly heated to a temperature below 950.degree. C., preferably in the range 700.degree.-950.degree. C., and the mixture is retained in the reactor for a period of time sufficient to cause the major portion of the iron to be transported out of the ore and to be deposited on or near the solid reductant and form discrete metal particles. These particles can be separated from the gangue minerals, for example by magnetic separation, to provide a high yield-high quality iron concentrate.
REFERENCES:
patent: 3637369 (1972-01-01), Sebenik et al.
patent: 3823011 (1974-07-01), Sebenik et al.
patent: 3854929 (1974-12-01), Stewart et al.
patent: 4047934 (1977-09-01), Polland et al.
patent: 4065294 (1977-12-01), Barker
Bertram Edward F.
Harris Philip
Myroniuk Darrell W.
Alberta Research Council
Lewis Michael L.
Rutledge L. Dewayne
Wymore Max L.
LandOfFree
Beneficiation process for oxidized iron ore does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Beneficiation process for oxidized iron ore, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Beneficiation process for oxidized iron ore will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1764965