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Preparation of 6N5 (99.99995%-Pure) Cadmium, Zinc, and Tellurium by Crystallization Methods

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Inorganic Materials Aims and scope

Abstract—

This paper describes a detailed study aimed at developing technological principles of the preparation of 99.99995%-pure Cd, Zn, and Te by crystallization purification methods. We have analyzed the thermophysical properties of Cd, Zn, Te, and structural materials of the equipment involved; substantiated the choice of graphite as a crucible material; and determined its engineering features. We have studied impurity distributions in Cd, Zn, and Te in crystallization processes and determined effective performance parameters of the materials refining process in horizontal directional solidification and zone melting steps. The results have allowed us to obtain 99.99995 to 99.99999%-pure Cd, Zn, and Te in terms of 30 major impurities, with a maximum product yield of up to 85%.

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Funding

This work was supported by the Foundation for Assistance to Innovations (contract (agreement) no. 627GRNTIS5/63431, December 5, 2020) and the Russian Federation Ministry of Science and Higher Education as part of the state research target for the Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences.

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Authors and Affiliations

  1. ADV Engineering, 119049, Moscow, Russia

    V. N. Abryutin, N. A. Potolokov & I. I. Maronchuk

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

    M. N. Brekhovskikh, T. K. Menshchikova & V. A. Fedorov

Authors
  1. V. N. Abryutin
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  2. N. A. Potolokov
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  3. I. I. Maronchuk
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  4. M. N. Brekhovskikh
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  5. T. K. Menshchikova
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  6. V. A. Fedorov
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Corresponding author

Correspondence to N. A. Potolokov.

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Abryutin, V.N., Potolokov, N.A., Maronchuk, I.I. et al. Preparation of 6N5 (99.99995%-Pure) Cadmium, Zinc, and Tellurium by Crystallization Methods. Inorg Mater 58, 983–989 (2022). https://doi.org/10.1134/S0020168522090011

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  • DOI: https://doi.org/10.1134/S0020168522090011

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