Conclusions
Magnesite and magnesite-chromite powders obtained on the basis of beneficiated Satkinsk magnesite using the flotation method can be employed for making periclase-spinel refractories similar in quality to products of grade PShSO and PShSP. For such refractories there is typically an increased refractoriness under load of 2 kg/cm2, which on average equals 1640–1670°C.
The periclase-spinel products made from beneficiated materials contain 4–5% silicates instead of 8–12% in the refractories obtained from ordinary powders. In the high-temperature fired periclase-spinel refractories made from beneficiated materials we note the formation of high-quality structures containing about 50% direct intergranular bonds between the highly refractory minerals. In the structural elements of such refractories there is a predominance of intergranular bond of the type periclase-secondary spinel-periclase.
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V. A. Bron, Ogneupory, No. 7, 1–5 (1970).
K. V. Simonov and V. A. Perepelitsin, Ogneupory, No. 7, 9–15 (1969).
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Translated from Ogneupory, No. 2, pp. 10–14, February, 1973.
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Bugaev, N.F., Zubakov, S.M. Periclase-spinel refractories from beneficiated materials. Refractories 14, 79–82 (1973). https://doi.org/10.1007/BF01295599
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DOI: https://doi.org/10.1007/BF01295599