Method and apparatus for the reduction of metal ores
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United States of America Patent
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-
Jul 6, 1982
Grant Date -
N/A
app pub date -
Feb 23, 1981
filing date -
Feb 23, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus is disclosed for reducing metal ore to sponge metal in a vertical shaft, moving bed, gaseous reduction reactor by controlling the amount of gas intermixing between the reduction and cooling zones of the reactor to result in increased productivity and improved carburization of sponge iron. In accordance with a preferred embodiment, process efficiency is maximized while capital cost is minimized through the use of an optimally designed reactor with a pre-determined equivalent height to equivalent diameter ratio.
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