Dissolution Behaviors of FeO-MgO Solid Solutions in Molten Slag

DOI

Bibliographic Information

Other Title
  • FeO-MnO固溶体のスラグへの溶解挙動

Abstract

Studying the dissolution mechanism of MgO in steelmaking slag is vital to reduce refractory damage in basic oxygen furnaces. In many cases, a FeO-MgO layer is formed at the interface between MgO and steelmaking slag. In this research, the dissolution rates of the FeO-MgO solid solution in molten slag were investigated by changing the composition of solid solution and slag. The following results were obtained. (1)the FeO-MgO solid solution was not stable and dissolved into slag. The dissolution rate increased with increasing FeO content in the slag, and decreased with increasing MgO content in the slag. (2)In every case, the FeO content of the solid solution near the interface of slag was higher than that in bulk. (3)A clear relation was found between FeO content in the solid solution near the interface and the dissolution rate. The FeO content in the solid solution near the interface can be considered an important factor that controls the dissolution rate. (4)A fairly good relationship was found between the FeO activity difference between the solid solution near the interface and slag bulk and the differences in FeO content between the solid solution near the interface and slag bulk.

Journal

  • Taikabutsu

    Taikabutsu 68 (4), 165-175, 2016-04-01

    The Technical Association of Refractoreies,Japan

Details 詳細情報について

  • CRID
    1390018518956395904
  • DOI
    10.60431/taikabutsu.68.4_165
  • ISSN
    27593835
    00398993
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Disallowed

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