Processo para a redução direta de material que contém óxido de ferro

PCT No. PCT/AT95/00121 Sec. 371 Date Jan. 15, 1997 Sec. 102(e) Date Jan. 15, 1997 PCT Filed Jun. 20, 1995 PCT Pub. No. WO96/00302 PCT Pub. Date Jan. 4, 1996A direct reduction process is disclosed for iron oxide-containing materials. Synthesis gas is mixed with top gas produced during direct reductio...

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Bibliographic Details
Main Authors ROY HUBERT WHIPP JR, ROLAND FLUCH, GUENTER PEER, KARL CZERMAK
Format Patent
LanguagePortuguese
Published 12.08.1997
Edition6
Subjects
CHEMISTRY
MANUFACTURE OF IRON OR STEEL
METALLURGY
METALLURGY OF IRON
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Summary:PCT No. PCT/AT95/00121 Sec. 371 Date Jan. 15, 1997 Sec. 102(e) Date Jan. 15, 1997 PCT Filed Jun. 20, 1995 PCT Pub. No. WO96/00302 PCT Pub. Date Jan. 4, 1996A direct reduction process is disclosed for iron oxide-containing materials. Synthesis gas is mixed with top gas produced during direct reduction of the iron oxide-containing materials and is used as reduction gas for directly reducing and heating the iron oxide-containing materials up to reduction temperature. In order to set the H2S content at a predetermined value by a relatively simple technique and with a relatively simple equipment, at least part of the sulphur contained in the iron oxide-containing materials as H2S produced during heating or direct reduction is added to the reduction gas together with the top gas.
Bibliography:Application Number: BR19959508108