PROCESS AND EQUIPMENT FOR PRODUCING IRON CARBIDE

PROCESS AND EQUIPMENT FOR PRODUCING IRON CARBIDE

The present invention provides method and apparatus capable of producing iron carbide having any quality, both quickly and economically. The method of producing iron carbide(Fe3C) comprises reducing and carburizing iron-containing raw materials for iron making such as iron ore and the like containin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NAKAZAWA, TERUYUKI, UCHIYAMA, YOSHIO, NAKATANI, JUNYA, MIYASHITA, TORAKATSU, IIJIMA, SATORU, INOUE, EIJI
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
MANUFACTURE OF IRON OR STEEL
METALLURGY
METALLURGY OF IRON
NON-METALLIC ELEMENTS
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Beschreibung
Zusammenfassung:The present invention provides method and apparatus capable of producing iron carbide having any quality, both quickly and economically. The method of producing iron carbide(Fe3C) comprises reducing and carburizing iron-containing raw materials for iron making such as iron ore and the like containing iron oxides (e.g. hematite) and iron hydroxides as main components. The hematite is partially reduced to a reduction ratio of 50 to 65% by a gas containing mainly hydrogen in a first stage of the reaction process, then the partially reduced hematite is further reduced and carburized by - a gas containing mainly hydrogen and methane in a second stage of the reaction process to provide iron carbide.