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Melt–Vapor Phase Diagram of the Te–S System

  • Chemical Thermodynamics and Thermochemistry
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Abstract

The values of partial pressure of saturated vapor of the constituents of the Те–S system are determined from boiling points. The boundaries of the melt–vapor phase transition at atmospheric pressure and in vacuum of 2000 and 100 Pa are calculated on the basis of partial pressures. A phase diagram that includes vapor–liquid equilibrium fields whose boundaries allow us to assess the behavior of elements upon distillation fractioning is plotted. It is established that the separation of elements is possible at the first evaporation–condensation cycle. Complications can be caused by crystallization of a sulfur solid solution in tellurium.

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Authors and Affiliations

  1. “Institute of Metallurgy and Ore Benefication” JSC, Almaty, 09211, Kazakhstan

    V. N. Volodin, S. A. Trebukhov, B. K. Kenzhaliyev, A. V. Nitsenko & N. M. Burabaeva

Authors
  1. V. N. Volodin
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  2. S. A. Trebukhov
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  3. B. K. Kenzhaliyev
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  4. A. V. Nitsenko
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  5. N. M. Burabaeva
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Correspondence to N. M. Burabaeva.

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Volodin, V.N., Trebukhov, S.A., Kenzhaliyev, B.K. et al. Melt–Vapor Phase Diagram of the Te–S System. Russ. J. Phys. Chem. 92, 407–410 (2018). https://doi.org/10.1134/S0036024418030330

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  • DOI: https://doi.org/10.1134/S0036024418030330

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