| 摘要 |
A method for producing a sponge metal from metal ore or iron ore which comprises reacting said metal ore or iron ore in a reduction zone with a CO- and H2-containing, reducing feed gas source which has been compressed, and after said reaction, withdrawing the remaining feed gas as an export gas from the reduction zone, wherein the CO- and H2-containing feed gas is introduced into the reduction zone form at least to gas sources, whereby upon a breakdown of one of the feed gas sources, at least a portion of the export gas recovered from the reduction zone is compressed, subjected to CO2 elimination recycled to the reduction zone together with the reducing feed gas.
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