Abstract
An innovative method for preparation of mullite-based refractories from aluminosilicate topaz ores is proposed in which the mineral ore is treated with ammonium fluoride; the excess silicon dioxide is removed in the form of gaseous ammonium hexafluorosilicate. The desiliconized mixture is sintered to obtain a lightweight mullite refractory with a fibrous structure.
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Translated from Novye Ogneupory, No. 5, pp. 8–11, May, 2006.
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D’yachenko, A.N., Andreev, A.A., Buinovskii, A.S. et al. Aluminosilicate ores processed by a fluoride method. Refract Ind Ceram 47, 146–148 (2006). https://doi.org/10.1007/s11148-006-0074-1
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DOI: https://doi.org/10.1007/s11148-006-0074-1