Conclusions
Enrichment of Satkinsk magnesite by flotation yields a product containing (calculated on the calcined substance) 94.2–96.5% MgO, 0.3–0.4% SiO2 and 1.4–2.8% CaO.
Enriched magnesite consists of dispersed powder with a relatively narrow particle-size range. A large quantity of particles have dimensions of 0.2–0.063 mm. The concentration of particles measuring less than 0.063 mm did not exceed 55%.
In order to obtain dense powder it is necessary to carry out additional fine grinding of the enriched magnesite, ensuring a concentration of fractions less than 0.063 mm of at least 95%, reducing the average particle size by a factor of 4–6 (down to 10μ) and followed by briquetting of the milled material.
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Literature cited
A. A. Glagolev, Geometrical Methods of Quantitative Analysis under the Microscope [in Russian], Gosgeolizdat (1941), pp. 1–40.
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Translated from Ogneupory, No. 7, pp. 1–5, July, 1970.
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Bron, V.A., Diesperova, M.I., Stepanova, I.A. et al. Obtaining dense powder from Satkinsk magnesite beneficiated by flotation. Refractories 11, 401–404 (1970). https://doi.org/10.1007/BF01290710
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DOI: https://doi.org/10.1007/BF01290710