METHOD FOR DESILICONIZING MOLTEN MANGANESE IRON ALLOY

PROBLEM TO BE SOLVED: To lower [Si] in molten manganese iron alloy by executing desiliconizing treatment of molten metal tapped from a blast furnace without lowering [Mn] yield, at the time of producing the molten manganese iron alloy from Mn ore by using the blast furnace and a reducing furnace. SO...

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Bibliographische Detailangaben
Hauptverfasser:	MASUKAWA MASANOBU, TAKEDA KANJI, SUZUKI TAKESHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MANUFACTURE OF IRON OR STEEL METALLURGY METALLURGY OF IRON PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To lower [Si] in molten manganese iron alloy by executing desiliconizing treatment of molten metal tapped from a blast furnace without lowering [Mn] yield, at the time of producing the molten manganese iron alloy from Mn ore by using the blast furnace and a reducing furnace. SOLUTION: At the time of flowing down the molten manganese iron alloy 9 tapped from the blast furnace 1 from the dropping hole of a molten metal tapping trough 2, desiliconizing agent composed of oxidizer containing manganese oxide and/or carbonate of alkaline earth metal and flux containing neither alkali metal compound nor halogen compound or