Premium
Reaction Kinetics of FeO Containing Molten Slags
Author(s) -
Ito Kimihisa,
Hamano Tasuku,
Matsuzaki Kenji
Publication year - 2003
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.200300154
Subject(s) - chemistry , slag (welding) , mox fuel , steelmaking , metal , metallurgy , dissolution , materials science , nuclear chemistry , plutonium
The kinetic study of FeO‐containing slag is valuable if we consider slag‐gas and slag‐metal reactions in steelmaking process. In the present work, the reduction rate of Fe t O‐SiO 2 –TiO 2 –MO x (MO x = CaO, MgO, AlO 1.5 , PO 2.5 ) melts in equilibrium with solid iron by CO gas was measured using the thermobalance system at 1673 K. A rate equation was developed based on the results obtained. The mechanisms of the reaction and the effect of P 2 0 5 as a surfactant were discussed. Solid CaO was reacted with FeO‐containing slag at 1573 to 1673 K. The CaO–slag interface was analyzed by SEM and EDX, and the reacted layers were identified. The rate of solid CaO dissolution into a stagnant FeO‐containing slag at hot‐metal temperatures was explained by the FeO diffusion in slag phase.