Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Fundamentals of High Temperature Processes
Activities of FexO in Molten Slags Coexisting with Solid CaO and Ca2SiO4-Ca3P2O8 Solid Solution
Kohei MiwaRyota MatsugiMasakatsu Hasegawa
Author information
JOURNALS FREE ACCESS FULL-TEXT HTML

2019 Volume 105 Issue 6 Pages 587-594

Details
Abstract

In steelmaking processes, there are incentives to reduce slag volume and CaO consumption. The key to meet these requirements is the better understanding of CaO dissolution mechanism into molten slag, which relies on the knowledge of the thermochemical properties of slags and fluxes used for dephosphorization. In this study, the liquidus compositions coexisted with solid CaO and Ca2SiO4-Ca3P2O8 solid solution simultaneously were determined in the quaternary system CaO-SiO2-P2O5-FexO at 1573 K. Measurements were also conducted on the FexO activities at temperatures between 1542 K and 1604 K by virtue of an electrochemical technique. By using the present experimental results, phosphorus distribution ratios were estimated.

Information related to the author
© 2019 The Iron and Steel Institute of Japan
Previous article Next article
feedback
Top