METHOD OF CONTROLLING REACTION GAS COMPOSITION

PROBLEM TO BE SOLVED: To provide a method of controlling a reaction gas composition in a 1st reaction furnace in a method of manufacturing iron carbide by performing partial reduction in a 1st reaction operation and performing remaining reduction and carbonization in a 2nd reaction operation. SOLUTI...

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Hauptverfasser:	MIYASHITA TORAKATSU, SUEZAWA YOSUKE, NAKAZAWA TERUYUKI, NIO AKIO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY MANUFACTURE OF IRON OR STEEL METALLURGY METALLURGY OF IRON NON-METALLIC ELEMENTS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method of controlling a reaction gas composition in a 1st reaction furnace in a method of manufacturing iron carbide by performing partial reduction in a 1st reaction operation and performing remaining reduction and carbonization in a 2nd reaction operation. SOLUTION: A part of the reduction reaction of an iron-containing raw material is carried out in the 1st reaction furnace 19 and the remaining reduction and the carbonization reaction is carried out in the 2nd reaction furnace 39. The reaction gas composition in the 1st reaction furnace 19 is controlled by adjusting the flow rate of the reaction gas discharged out of the reaction line through a pipe line 25 from the 1st reaction furnace. COPYRIGHT: (C)2003,JPO