Effects of slag on the carburization and melting of reduced iron.

Accession number;05A0248795
Title;Effects of slag on the carburization and melting of reduced iron.
Author; NAGATA KAZUHIRO (Tokyo Inst. of Technol.)
Journal Title;Current Advances in Materials and Processes
Journal Code:X0994A
ISSN:0914-6628
VOL.18;NO.1;PAGE.30-33(2005)
Figure&Table&Reference;FIG.9, REF.3
Pub. Country;Japan
Language;Japanese
Abstract;Effects of various factors on the carburization melting and coagulation of reduced iron in carbon composite iron ore pellets are investigated especially emphasizing the titled topic. The reduction behavior of reduced iron obtained by the reduction of electrolytic iron and iron ore in the gaseous environments of CO, CO/CO2, H2 are investigated by measuring the lattice constants by a high-temperature X-ray diffraction apparatus to make in-situ observation of the carburization of reduced iron and melting. Together with the results obtained by Murakami et. al on the carburization and melting acceleration effects by the direct contact between electrolytic iron and graphite, the results obtained are analyzed. The conclusions obtained are that the slag containing iron oxide is reduced by CO gas and the formed iron is carburized to transport carbon. The slag has a function to coagulate iron particles. Reduced iron from iron oxide by CO gas and the electrolytic iron have different carburizing behavior, and the former dissolves near the solidus of the austenite phase, and the latter shows super saturation.