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
ISSN : 2576-8840Volume11 Issue4
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.