Gamma-Radiolytic Stability of Solvents Containing C5-BPP (2,6-Bis(5-(2,2-dimethylpropyl)-1H-pyrazol-3-yl)pyridine) for Actinide(III)/Lanthanide(III) Separation
Journal article, 2016

The stability of solvents containing the C5-BPP (2,6-Bis(5-(2,2-dimethylpropyl)-1H-pyrazol-3-yl)pyridine) extractant against gamma-irradiation up to 330 kGy adsorbed dose was evaluated using HPLC mass spectrometric and solvent extraction methods. The main radiolysis products were identified using high-resolution mass spectrometry. Quantitative analysis of the residual C5-BPP concentration in irradiated samples was accomplished by a specifically developed MRM (Multiple Reaction Monitoring) method. A mixture of C5-BPP with 2-bromohexanoic acid in kerosene and 1-octanol, which had been used in an actinide(III)/lanthanide(III) separation process demonstration test, was also studied for its radiolytic stability and a remarkable protective effect of the presence of nitric acid during irradiation was found.

radiolysis

mass-spectrometry

multiple reaction monitoring

C5-BPP

high resolution mass spectrometry

Author

A. Wilden

Forschungszentrum Jülich

G. Modolo

Forschungszentrum Jülich

M. Hupert

Forschungszentrum Jülich

B. Santiago-Schubel

Forschungszentrum Jülich

Elin Löfström Engdahl

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Nuclear Chemistry

Jenny Halleröd

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Nuclear Chemistry

Christian Ekberg

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Nuclear Chemistry

B. J. Mincher

Idaho National Laboratory

S. P. Mezyk

The California State University

Solvent Extraction and Ion Exchange

0736-6299 (ISSN) 1532-2262 (eISSN)

Vol. 34 1 1-12

Subject Categories

Chemical Engineering

DOI

10.1080/07366299.2015.1115694

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