PRODUCTION OF IRON CARBIDE

PROBLEM TO BE SOLVED: To provide a method for efficiently producing iron carbide by positively utilizing carbon monoxide as a carbonizing reaction gas component. SOLUTION: The iron carbide is produced by performing a 1st reaction operation for reducing a part of an iron-containing fine particle raw...

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Bibliographische Detailangaben
Hauptverfasser:	MIYASHITA TORAKATSU, NAGAHAMA TAKESHI, KAWAI MICHIHIRO, NAKAZAWA TERUYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOUNDS THEREOF GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INORGANIC CHEMISTRY MANUFACTURE OF IRON OR STEEL METALLURGY METALLURGY OF IRON NON-METALLIC ELEMENTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for efficiently producing iron carbide by positively utilizing carbon monoxide as a carbonizing reaction gas component. SOLUTION: The iron carbide is produced by performing a 1st reaction operation for reducing a part of an iron-containing fine particle raw material charged into a 1st fluidized layer furnace 10, and after that, performing a 2nd reaction operation for applying the remainder of reduction and carbonization to the partially reduced iron-containing fine particle raw material in a 2nd fluidized layer furnace 30. The 1st reaction operation is performed with a reduction gas consisting essentially of hydrogen and the 2nd reaction operation is performed with a reducing and carbonizing gas mainly containing hydrogen, carbon monoxide and methane.