Smelting process for the production of iron
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United States of America Patent
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Jun 1, 2010
Grant Date -
Feb 23, 2006
app pub date -
Jan 20, 2004
filing date -
Jan 24, 2003
priority date (Note) -
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Abstract
. The rates of injection of the oxygen-containing gas and fuel/reductant by said at least one lance are controlled to achieve required, sufficient reducing conditions; and, in the reactor above the bath, the combustion gases generated by the smelting are post-combusted. The controlling of step (c) is conducted to result in the injected oxygen-containing gas having an oxygen content of from about 40 volume % to about 100 volume % and sufficient for a degree of combustion in excess of 60 wt % of the fuel/reductant injected by the at least one lance.
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