Direct smelting process
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United States of America Patent
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Aug 5, 2003
Grant Date -
May 2, 2002
app pub date -
Jun 4, 2001
filing date -
Sep 26, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A direct smelting process and a fixed, ie non-rotatable, metallurgical vessel for producing metal from a metalliferous feed material is disclosed. The process is a molten bath-based process which includes injecting solid feed materials with a carrier gas into the molten bath via one or more downwardly extending lance/tuyere (11) and causing gas flow from the molten bath at a flow rate of at least 0.30 Nm.sup.3 /s/m.sup.2 at the interface between the metal layer (15) and the slag layer (16) of the molten bath (under quiescent conditions).
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