Study of separation of isotopes of lutetium and ytterbium by cementation methods
Abstract
The paper presents experimental data on the study of Lu – 177 cleaning from Yb – 175 by the method of sodium amalgam cementation of ytterbium, with the defined process stages of ytterbium and lutetium separation with the following radiopharmaceutical production. Two stages have been studied: formation of sodium amalgam and sodium amalgam cementation of ytterbium, also the dependence of sodium concentration in amalgam from electrolysis time, effect of electrolyte volume on sodium concentration in the amalgam, effect of washing the amalgam with water on sodium concentration in amalgam, dependence of separation coefficient from acetate-ions concentrate at various pH of process solution, dependence of separation coefficient at various sodium concentrates in amalgam have been studied, the optimal parameters of sodium amalgam formation of certain concentrations were defined, the method to control the content of sodium in the amalgam was developed in practice. The work was performed in the Institute of Nuclear Physics, where 177Lu recovery from 176 Yb was made in WWR-K reactor. The experiment was conducted in Scientific-Technical Center of Radiopharmaceuticals and Isotopes Production (STC RPI).
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