Blicharska Magdalena, Bartoś Barbara, Krajewski Seweryn, Bilewicz Aleksander
Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland.
J Radioanal Nucl Chem. 2013;298(3):1713-1716. doi: 10.1007/s10967-013-2570-3. Epub 2013 Jun 20.
An effective and simple process for the isolation of Ru from high-level liquid wastes was developed. Radioactive ruthenium was oxidized by HIO in HNO solution and was extracted to CCl phase in the form of RuO. In order to obtain ruthenium in the suitable form for production of brachytherapy sources, RuO in organic phase was reduced and re-extracted to aqueous phase. The efficiency of extraction of Ru to organic phase was 86 %, re-extraction to aqueous solution was near 100 %, so the overall recovery of Ru is estimated at more than 80 %.
开发了一种从高放废液中分离钌的有效且简单的方法。放射性钌在硝酸溶液中被高碘酸氧化，并以四氧化钌的形式萃取到四氯化碳相中。为了获得适合用于生产近距离放射治疗源的钌的合适形式，有机相中的四氧化钌被还原并重新萃取到水相中。钌萃取到有机相的效率为86%，重新萃取到水溶液中的效率接近100%，因此钌的总回收率估计超过80%。
