Conclusions
The conducted tests showed that low-silica periclase-spinellide refractories having an excess iron content in the chromium-containing component are not suitable for use because of their rapid slag-induced chemical corrosion.
In continuously operating metallurgical units where splitting of the lining due to the action of the slags is not a decisive factor, it is advisable to use refractories having the optimum content of iron oxides for the formation of a homogeneous spinellide matrix.
In units operating cyclically under the most severe conditions (for example, in the ASEA-SKF type installations), the periclase-spinellide products in which the spinellide having the minimum content of iron oxides acts as a fused synthetic chromium-containing component are suitable since they exhibit the best high-temperature thermomechanical properties and stability.
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Literature cited
E. S. Borisovskii, in: Modern Developments in the Production of Refractories: Collection of Scientific Papers [in Russian], Metallurgiya, Moscow (1981), pp. 13–19.
E. S. Borisovskii and A. N. Sokolov, Ogneupory, No. 8, 53–56 (1982).
S. V. Kazakov, E. V. Simun, B. P. Aleksandrov, et al., ibid., No. 10, 9–12 (1988).
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Translated from Ogneupory, No. 7/8, pp. 8–11, July–August, 1992.
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Borisovskii, E.S., Kuznetsov, G.I., Tsiporina, S.Z. et al. Effect of iron oxides on the service life of periclase-spinellide refractories. Refractories 33, 364–368 (1992). https://doi.org/10.1007/BF01283297
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DOI: https://doi.org/10.1007/BF01283297