Direct reduction apparatus and process

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Reexamination Certificate

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Details

C266S267000

Reexamination Certificate

active

07824603

ABSTRACT:
An apparatus for reducing a metalliferous material in a fluidized bed includes a vessel for containing the fluidized bed, a mechanism for supplying the metalliferous material, a solid carbonaceous material, an oxygen-containing gas, and a fluidizing gas into the vessel for forming the fluidized bed in the vessel. The oxygen-containing gas supply mechanism includes one or more than one oxygen-containing gas injection lance having a lance tip with an outlet that is positioned for injecting the oxygen-containing gas in a downward flow into the vessel within a range of plus or minus 40° to the vertical.

REFERENCES:
patent: 3753685 (1973-08-01), Tajima et al.
patent: 4374663 (1983-02-01), Collin et al.
patent: 2003/0090044 (2003-05-01), Li
patent: 11131118 (1999-05-01), None
patent: 2004057038 (2004-07-01), None

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