PLANT AND PROCESS FOR PRODUCING RAW IRON AND/OR SPONGE IRON

Liq. pig iron or steel is produced by adding iron ore in pieces or pellets together with additive into a redn. zone (12) where sponge iron is produced which is then fed into melting zone (8) with carbon and O2-contg. gas. A CO-contg. and H2-contg. redn. gas is produced and passed back to the redn. z...

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Bibliographic Details
Main Authors KEPPLINGER, LEOPOLD WERNER, MILIONIS, KONSTANTIN, WIESINGER, HORST, SIUKA, DIETER
Format Patent
LanguageEnglish
French
German
Published 05.08.1998
Edition6
Subjects
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
MANUFACTURE OF IRON OR STEEL
METALLURGY
METALLURGY OF IRON
PRETREATMENT OF RAW MATERIALS
PRODUCTION AND REFINING OF METALS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:Liq. pig iron or steel is produced by adding iron ore in pieces or pellets together with additive into a redn. zone (12) where sponge iron is produced which is then fed into melting zone (8) with carbon and O2-contg. gas. A CO-contg. and H2-contg. redn. gas is produced and passed back to the redn. zone (12) where it is converted to an export gas which is drawn off and subjected to a CO2 eliminating process before being passed to a further redn. zone (21) for direct redn. of more iron ore. A part of the redn. gas produced in the zone (8) is drawn off and fed directly to the zone (21), by-passing the CO2 elimination stage. The plant for carrying out this process is also claimed.
Bibliography:Application Number: EP19950933227