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Feasibility Assessment for Leucosapphire Production from Aluminum Oxide Prepared Electrochemically

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Technology was developed to produce high-purity Al2O3, the raw material for manufacturing leucosapphire, which is widely used in metallurgical processes, by electrochemical oxidation of aluminum. The optimum conditions and parameters for the electrochemical process; chemical, granulometric, and phase compositions; and size and shape of the obtained Al2O3 particles are reported. The high-purity Al2O3 could be used in principle to grow leucosapphire crystals by the Verneuil method, horizontal unidirectional crystallization (HUC), and zone refining.

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Acknowledgments

The work was financially supported by the Ministry of Education and Science of the Russian Federation in the framework of obligations under a Subsidy Contract dated Sept. 26, 2017, No. 14.578.21.0255 (unique contract identifier RFMEFI57817X0255).

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Authors and Affiliations

  1. National University of Science and Technology (NUST), Moscow Institute of Steel and Alloys (MISIS), Moscow, Russia

    A. Yu. Nalivaiko & A. P. Lysenko

  2. Engineering Center for Industrial Technologies, NUST, MISIS, Moscow, Russia

    V. I. Pak & M. A. Ivanov

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  1. A. Yu. Nalivaiko
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  2. A. P. Lysenko
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  3. V. I. Pak
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  4. M. A. Ivanov
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Correspondence to A. Yu. Nalivaiko.

Additional information

Translated from Novye Ogneupory, No. 2, pp. 42 – 46, February, 2018.

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Nalivaiko, A.Y., Lysenko, A.P., Pak, V.I. et al. Feasibility Assessment for Leucosapphire Production from Aluminum Oxide Prepared Electrochemically. Refract Ind Ceram 59, 80–84 (2018). https://doi.org/10.1007/s11148-018-0186-4

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  • DOI: https://doi.org/10.1007/s11148-018-0186-4

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