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Investigation into the behavior of solid and liquid aluminum during the dissociation of lithium carbonate in vacuum

  • Metallurgy of Nonferrous Metals
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Abstract

The oxidability of aluminum powder with carbon dioxide is studied theoretically and experimentally in the scope of the developed technology of the aluminothermic acquisition of metal lithium as a dissociation product of lithium carbonate. Our evaluation of the interaction of solid and liquid aluminum with CO2, as well as (for comparison) with oxygen, shows that aluminum should be oxidized with two gases both in solid and in liquid states. It is established experimentally that oxide film protects the aluminum of oxidation with carbon dioxide during the dissociation of lithium carbonate. It is proven experimentally that during dissociation the protective layer of Al2O3 on the surface of aluminum powder interacts with Li2CO3 with the formation of a new denser layer of lithium monoaluminate, which protects the aluminum of oxidation with CO2 better than Al2O3.

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Authors and Affiliations

  1. Moscow Institute of Steel and Alloys, National Research Technology University, Leninskii pr. 4, Moscow, 119049, Russia

    A. A. Bazhenov, V. K. Kulifeev, I. I. Vatulin, A. N. Kropachev & S. V. Podrezov

Authors
  1. A. A. Bazhenov
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  2. V. K. Kulifeev
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  3. I. I. Vatulin
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  4. A. N. Kropachev
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  5. S. V. Podrezov
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Corresponding author

Correspondence to A. A. Bazhenov.

Additional information

Original Russian Text © A.A. Bazhenov, V.K. Kulifeev, I.I. Vatulin, A.N. Kropachev, S.V. Podrezov, 2011, published in Izvestiya VUZ. Tsvetnaya Metallurgiya, 2011, No. 2, pp. 17–20.

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Bazhenov, A.A., Kulifeev, V.K., Vatulin, I.I. et al. Investigation into the behavior of solid and liquid aluminum during the dissociation of lithium carbonate in vacuum. Russ. J. Non-ferrous Metals 52, 146–149 (2011). https://doi.org/10.3103/S1067821211020039

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  • DOI: https://doi.org/10.3103/S1067821211020039

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