Stabilization of Ladle-Treatment Slags in Steel Production

S. I. Ivanitsa; L. M. Aksel’rod; I. V. Kushnerev; S. V. Verbnyi; G. S. Ashina; S. A. Koroteev

doi:10.3103/S0967091218010072

Stabilization of Ladle-Treatment Slags in Steel Production

Autores: Ivanitsa S.I.¹, Aksel’rod L.M.², Kushnerev I.V.², Verbnyi S.V.¹, Ashina G.S.¹, Koroteev S.A.²
Afiliações:
1. OOO NLMK-Kaluga
2. OOO Gruppa Magnezit
Edição: Volume 48, Nº 1 (2018)
Páginas: 45-48
Seção: Article
URL: https://journals.rcsi.science/0967-0912/article/view/179951
DOI: https://doi.org/10.3103/S0967091218010072
ID: 179951

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Ladle-treatment slags are primary wastes from steel production. Slag utilization is prevented by its spontaneous decomposition as a result of polymorphic transformation of dicalcium silicate with decrease in slag temperature. At OOO NLMK-Kaluga, the slag is stabilized by the introduction of boron oxide in the high–magnesia flux during ladle treatment. Industrial tests indicate stabilization of the slag and the formation of a protective layer on the lining, preventing slag corrosion.