Direct reduction of ores and concentration of metallic values
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United States of America Patent
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Nov 22, 1983
Issued Date -
N/A
app pub date -
Jan 28, 1982
filing date -
Sep 2, 1980
priority date (Note) -
Expired
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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.
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