METHOD FOR DEPHOSPHORIZATION OF MOLTEN IRON, AND REFINING AGENT

When performing dephosphorization treatment of hot metal by adding a refining agent as a lime source and an oxygen source (dephosphorizing agent(s) and a gaseous oxygen source into the hot metal accommodated in a hot metal holding container, the refining agent used is a refining agent having an Ig-l...

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Bibliographic Details
Main Authors Nakai, Yoshie, Mori, Mikihiro, Maeda, Takahiko, Kikuchi, Naoki, Nishiguchi, Noritaka, Fujii, Yusuke
Format Patent
LanguageEnglish
Published 10.12.2020
Subjects
CHEMISTRY
METALLURGY
METALLURGY OF IRON
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL
TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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Summary:When performing dephosphorization treatment of hot metal by adding a refining agent as a lime source and an oxygen source (dephosphorizing agent(s) and a gaseous oxygen source into the hot metal accommodated in a hot metal holding container, the refining agent used is a refining agent having an Ig-loss value of from 4.0% by mass to 35.0% by mass and including 60% by mass or more of quicklime.
Bibliography:Application Number: US201716473876