Carburization Degree of the Iron Nugget Produced by High Al₂O₃ Iron Ore

Abstract

The reduction and melting separation experiment of iron ore containing Al₂O₃ was performed. The results showed that Al₂O₃ obviously affected the melting separation behaviors and the carbon content of the iron nugget. When the Al₂O₃ content in iron ore was 4.59 wt%, the carbon content in the iron nugget was as low as 0.80 wt% and was much lower than the iron ores with lower Al₂O₃ content, and increased with the increasing of slag basicity. The melting separation and carburiz ation mechanism of high Al₂O₃ iron ore/coal composite pellet was deduced.