Reducibility of wustite compacts containing molten slag of FeO-SiO2-CaO type.

Accession number;05A0248793
Title;Reducibility of wustite compacts containing molten slag of FeO-SiO2-CaO type.
Author; NAKAMOTO MASASHI (Osaka Univ., Graduate School of Engineering, JPN) USUI TATEO (Osaka Univ., Graduate School of Engineering, JPN) NAKAZATO HIDEKI (Osaka Univ., Graduate School of Engineering, JPN) KAWABATA HIROTOSHI (Osaka Univ., Graduate School of Engineering, JPN) TANAKA TOSHIHIRO (Osaka Univ., Graduate School of Engineering, JPN)
Journal Title;Current Advances in Materials and Processes
Journal Code:X0994A
ISSN:0914-6628
VOL.18;NO.1;PAGE.22-25(2005)
Figure&Table&Reference;FIG.5, TBL.1, REF.7
Pub. Country;Japan
Language;Japanese
Abstract;The effects of the reduction, softening, and melting behavior at high temperature ranges in the fusion zone are tried to be clarified, which are closely related to blast furnace operation. The effects of the pore closures by the molten slag on the reducibility are investigated, and the reducibility is estimated based on characteristics of molten synthetic slag. Powder of CaCO3, Fe, Fe2O3,and SiO2 are mixed to prepare synthetic slag, and the composition is adjusted to be in equilibrium with FeO. The results obtained from the reduction experiments with solid FeO and molten slag, and the penetration experiments are reported. The decreased rate of the reduction of FeO is confirmed to be caused by closing effects of molten slag with increasing amount of molten slag. The penetration behavior of molten slag to grain boundaries and crevices to be different from the observation results by a laser microscope is clarified.