Direct reduction of ores and concentration of metallic values

Details Direct reduction of ores and concentration of metallic values Direct reduction of ores and concentration of metallic values

1982-01-28

1983-11-22

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 36, 266137, C22B 111

Patent

active

044166885

ABSTRACT:
The process for beneficiating iron ore, particularly high phosphorous iron ore, by controlled selective solid-state reduction in which the resultant sponge iron is produced in a malleable condition followed by ultrafine preferential grinding to form flake powder of the sponge iron and produce finely divided oxide gangue, including the phosphate bearing materials, and separation of said flake powder and finely divided gangue by conventional concentration techniques to obtain a high iron flake powder concentrate.

REFERENCES:
patent: 2944884 (1960-07-01), Halvorson
patent: 2986460 (1961-05-01), Babcock et al.
patent: 4244732 (1981-01-01), Brauns

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