Conclusions
Experimental batches ofα-alumina containing mineralizing additives were produced at various calcination temperatures in the rotary calcination kilns of the Dneprovsk Aluminum Plant.
The problem of producing an actively sintering alumina at a moderate calcination temperature on an industrial scale was resolved by using a mineralizing additive consisting of chlorine- and fluorine-containing compounds in the proportions of 1.0–2.5 and 0.2–0.3 wt. % in terms of Cl− and F− on the Al2O3.
The technology for the manufacture of dense corundum products fromα-alumina containing the mineralizing mixture has been introduced at the Podolsk Refractories Plant.
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D. S. Rutman, N. M. Permikina, L. S. Zhelobova, et al., Ogneupory, No. 9, 45–52 (1975).
K. Wefers, Z. Erzbergbau Metallhuettenwes.,18, No. 11, 583–591 (1964).
I. G. Orlova, L. A. Dergaputskaya, and I. S. Kainarskii, Ogneupory, No. 6, 39–44 (1975).
N. M. Permikina, N. V. Semkina, N. A. Myakisheva, et at., Ogneupory, No. 7, 38–42 (1973).
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Translated from Ogneupory, No. 6, pp. 13–20, June, 1978.
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Permikina, N.M., Rutman, D.S., Mytnikov, A.V. et al. Alumina production method as a factor in the properties of dense corundum refractories. Refractories 19, 345–352 (1978). https://doi.org/10.1007/BF01280952
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DOI: https://doi.org/10.1007/BF01280952