Batch and column studies of radium, actinium, thorium and protactinium on CL resin in nitric acid, hydrochloric acid and hydrofluoric acid

Journal Article · Thu Feb 25 00:00:00 EST 2021 · Journal of Radioanalytical and Nuclear Chemistry

DOI:https://doi.org/10.1007/s10967-021-07636-9· OSTI ID:1779582

Kmak, Kelly N. ^[1]; Shaughnessy, Dawn A. ^[2]; Vujic, Jasmina ^[1]

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1. Univ. of California, Berkeley, CA (United States)
2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

CL resin (TrisKem International) was characterized for separations of radium, actinium, thorium and protactinium. Batch studies are presented for radium, actinium and thorium in HCl and HNO3 as well as for radium, thorium and protactinium in HF. The uptake of thorium from dilute HNO3 (≤ 10^-4 M) and dilute HCl (≤ 10^-4 M) was found to be very high (D_w > 100 in HNO₃ and > 1000 in HCl). Kinetics studies on thorium were performed in HCl and HNO₃ to determine suitably for column separations. Six column separation studies are presented including the separation of trace thorium from radium and actinium in dilute HCl and HNO₃, the separation of radium from 1 mg ²³²Th in dilute HCl, the separation of thorium and radium in the presence of HCl and excess Cl-, the separation of radium, protactinium and thorium by retention of protactinium and the separation of protactinium and thorium by retention of thorium.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• Grant/Contract Number: AC52-07NA27344; NA0003180
• OSTI ID: 1779582
• Report Number(s): LLNL-JRNL-816609; 1025940
• Journal Information: Journal of Radioanalytical and Nuclear Chemistry, Vol. 328, Issue 1; ISSN 0236-5731
• Publisher: Springer
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
CL resin
thorium
protactinium
radium
actinium