The use of trioctylphosphine oxide for solvent extraction recovery and purification of transplutonium elements |
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| Authors: | V N Kosyakov E A Yerin V M Vitutnev |
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| Institution: | (1) Kurchatov Atomic Energy Institute, Moscow, (USSR);(2) Atomic Reactor Institute, Dimitrovgrad, (Bulgaria) |
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| Abstract: | Extraction of trivalent curium, berkelium, californium, einsteinium, and europium with trioctylphosphine oxide (TOPO) from
nitric acid solutions as well as extraction of curium and cerium from lactic acid solutions containing DTPA depending on aluminium
nitrate concentration have been studied. The distribution of cobalt, nickel, chromium, iron, aluminium, titanium, zirconium,
and niobium ions has been studied and coefficients of berkelium purification from the elements studied have been determined
under the conditions of extraction-chromatographic recovery of berkelium. The influence of weighed amounts of the same impurities
on the yield of berkelium in its extraction-chromatographic separation has been studied. Some examples of the practical application
of the extraction-chromatographic techniques using TOPO are given. |
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