Metal Oxide Sorbents for the Separation of Radium and Actinium

The inorganic, normal-phase sorbents alumina, titania, and zirconia were evaluated and screened for the separation of Ba, La, 228Ra, 228Ac, and 212Pb in a dilute acid matrix. The results show that the sorbents are capable of fractionating the ions between pH 1 and 8. A stationary zirconia column was...

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Bibliographic Details
Published inIndustrial & engineering chemistry research Vol. 59; no. 46; pp. 20472 - 20477
Main Author Brown, M. Alex
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 18.11.2020
American Chemical Society (ACS)
Subjects
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ions
organic compounds
organic polymers
oxides
Separations
sorbents
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Summary:The inorganic, normal-phase sorbents alumina, titania, and zirconia were evaluated and screened for the separation of Ba, La, 228Ra, 228Ac, and 212Pb in a dilute acid matrix. The results show that the sorbents are capable of fractionating the ions between pH 1 and 8. A stationary zirconia column was used to isolate Ba from La and Ra from Ac/Pb; elution profiles of each separation are presented. The utility and implications of these sorbents are discussed with respect to large-scale production of 225Ac from radium targets.
Bibliography:AC02-06CH11357
USDOE Office of Science (SC), Nuclear Physics (NP)
ISSN:0888-5885
1520-5045
DOI:10.1021/acs.iecr.0c04084