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Effect of crystal growth on the effectiveness of fine purification through counterflow melt crystallization

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Abstract

A method is proposed for calculating the axial impurity profile in a crystallization column and assessing the effectiveness of the purification of a substance via counterflow melt crystallization. The method takes into account the combined effect of diffusion and crystallization processes. An approximate equation for the separation factor is derived. The results obtained for a few systems agree well with experiment.

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Authors and Affiliations

  1. Institute of HighPurity Substances, Russian Academy of Sciences, ul. Tropinina 49, 603600, Nizhni Novgorod, Russia

    G. G. Devyatykh & A. Yu. Malyshev

  2. Lobachevski State University, pr. Gagarina 23, 603600, Nizhni Novgorod, Russia

    Yu. E. Elliev

  3. Research Institute of Applied Mathematics and Cybernetics, Nizhni Novgorod State University, ul. Ul’yanova 10, 603005, Nizhni Novgorod, Russia

    Yu. P. Kirillov

Authors
  1. G. G. Devyatykh
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  2. Yu. E. Elliev
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  3. Yu. P. Kirillov
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  4. A. Yu. Malyshev
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Devyatykh, G.G., Elliev, Y.E., Kirillov, Y.P. et al. Effect of crystal growth on the effectiveness of fine purification through counterflow melt crystallization. Inorg Mater 36, 1050–1055 (2000). https://doi.org/10.1007/BF02757983

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  • DOI: https://doi.org/10.1007/BF02757983

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