VERFAHREN UND VORRICHTUNG ZUR DIREKTEN EISENGEWINNUNG

Iron, for example is directly recovered from relatively fine-grained (having a grain particle size range of less than 250 microns), iron-bearing ore whereby carbon-containing materials and oxygen-containing materials are fed through a molten metal bath and converted into a CO/H2-rich reduction gas w...

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Bibliographic Details
Main Authors MUELLER,KARL, WEIGEL,HORST
Format Patent
LanguageGerman
Published 22.06.1978
Edition2
Subjects
CHEMISTRY
MANUFACTURE OF IRON OR STEEL
METALLURGY
METALLURGY OF IRON
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Summary:Iron, for example is directly recovered from relatively fine-grained (having a grain particle size range of less than 250 microns), iron-bearing ore whereby carbon-containing materials and oxygen-containing materials are fed through a molten metal bath and converted into a CO/H2-rich reduction gas which is sequentially passed upwardly at gas speeds of at least 1.5 m/sec. through downwardly moving ore particles within a reduction apparatus comprised of a sequence of interconnected cyclones so that ore particles in each cyclone are in a state of suspension and in intimate contact with the reduction gas and each other whereby extensive reduction of the ore particles occurs at each cyclone so that after a last cyclone the so-reduced ore particles are directly fed into a smelting means, from which liquid iron is recovered.
Bibliography:Application Number: DE19762655813