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Ultrapurification of tellurium and cadmium by distillation and crystallization

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Abstract

We have developed physicochemical principles of the ultrapurification of crude tellurium and cadmium by distillation and crystallization and determined the effective solid-liquid distribution coefficients of impurities in tellurium and cadmium. Based on the observed behavior of impurities in different ultrapurification processes, we have proposed a combined process for the preparation of high-purity (99.9999%) tellurium and cadmium.

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Authors and Affiliations

  1. Research Institute of Electronic Materials, ul. Gagarina 1, Kaluga, 248650, Russia

    N. A. Potolokov

  2. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia

    V. A. Fedorov

Authors
  1. N. A. Potolokov
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  2. V. A. Fedorov
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Correspondence to V. A. Fedorov.

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Original Russian Text © N.A. Potolokov, V.A. Fedorov, 2012, published in Neorganicheskie Materialy, 2012, Vol. 48, No. 11, pp. 1212–1217.

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Potolokov, N.A., Fedorov, V.A. Ultrapurification of tellurium and cadmium by distillation and crystallization. Inorg Mater 48, 1082–1087 (2012). https://doi.org/10.1134/S0020168512110106

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  • DOI: https://doi.org/10.1134/S0020168512110106

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