Separation of fission produced 106Ru and 137Cs from aged uranium targets by sequential distillation and precipitation in nitrate media

Separation of fission produced 106Ru from simulated high level nuclear wastes for production of brachytherapy sources

“…El-Absy et al [7, 8] separated Ru radionuclides from a 131 I-free fission product acidic solution containing KMnO4, by boiling for 40 min. In other work, ruthenium was electrochemically eliminated from a 3 M HNO 3 solution of high-level waste, as RuO 4 , in the presence of AgNO 3 at 60 °C [9].…”

Functionalized porous glass for the removal and the confinement of ruthenium from radioactive solutions

“…On the other hand, ruthenium-106 and -103 have important applications in nuclear medicine: 106 Ru is used as an external irradiator for treatment of benign conditions of eye and in preparation for corneal transplant [7]; ruthenium 103 is used for myocardial blood flow and positron emission tomography imaging [8]. For these reasons, the selective recuperation of the Ru species from the radioactive liquid waste can present increasing interest and different approaches have been proposed: e.g.…”

“…solvent extraction of promethium(III), uranium(VI), plutonium(IV), americium(III), zirconium(IV), ruthenium(III), iron(III) and palladium(II) with a 0022-3115/$ -see front matter Ó 2010 Elsevier B.V. All rights reserved. doi:10.1016/j.jnucmat.2010.02.005 mixture of octyl(phenyl)-N,N-diisobutylcarbamoylmethylphosphine oxide (CMPO) and tributyl phosphate (TBP) in dodecane [9], ion exchange methods [10,11], co-precipitation methods [12,13], and distillation and precipitation [7,8].…”

Evaluation of Nickel Sulphide Prepared by Different Routes for Removal of106Ru from Alkaline Radioactive Liquid Waste

“…With the number and type of ligand attached to the RuNO group, the complex can be cationic, neutral, or anionic. It may exist as ruthenate ion ðRuO À2 4 Þ or perruthenate ion RuO À 4 in alkaline solution (11). However, Ru is also reported to exist as RuNO(OH) 3 Á H 2 O under alkaline condition (12).…”