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Abstract

Research & Development in Material Science

Effective and Ideal Separation Factors at Sublimation Refining of Sm, Eu, Tm, Yb

  • Open or CloseКravchenko AI*

    National Science Center “Kharkov Institute of Physics and Technology”, Ukraine

    *Corresponding author:Кravchenko AI, National Science Center “Kharkov Institute of Physics and Technology”, Kharkov, Ukraine

Submission: August 21, 2019;Published: September 10, 2019

DOI: 10.31031/RDMS.2019.11.000768

ISSN : 2576-8840
Volume11 Issue4

Abstract

It is shown that the application of ideal separation factor in calculations of hightemperature sublimation refining of Sm, Eu, Tm and Yb has confined character: in considered base-impurity systems a difference between effective (β) and ideal (βi) separation factors increases with deviation of βi from unity and can be very significant; the measurable difference (in limited of a one order) between β and ideal βi is observed at deviation of βi from unity not more than 2 orders. The discrepancies between the effective and ideal separation factors in evaporative refining processes (distillation and sublimation at low impurity content) are not associated with the chemical interaction of the components.

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