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Combination of DGA and LN Columns: A Versatile Option for Isotope Production and Purification at Oak Ridge National Laboratory

Journal Article · · Solvent Extraction and Ion Exchange
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  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). National Isotope Development Center
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The chromatographic resins DGA and LN have been used sequentially to separate curium, californium, plutonium, and various fission products (FPs) to obtain products with a pure radioisotope or a radioelement with high isotopic purity. This 2-step combination of resins has found applications in the 252Cf and 238Pu campaigns performed at Oak Ridge National Laboratory. Experiments have been carried out in glove boxes, shielded caves, and hot cells, demonstrating that these resins are adequate and maintain their performance in highly radiolytic environments. We find that using these resins has led to the recovery of curium highly enriched (>95%) in 248Cm, the clean separation of 251Cf for the superheavy element research, and the recovery of 147Pm from the FP stream obtained during the 238Pu production campaign while demonstrating that the raffinate post DGA is essentially free of transuranic elements.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1766420
Journal Information:
Solvent Extraction and Ion Exchange, Journal Name: Solvent Extraction and Ion Exchange Journal Issue: 2 Vol. 39; ISSN 0736-6299
Publisher:
Taylor and FrancisCopyright Statement
Country of Publication:
United States
Language:
English

References (7)

Ion-exchange separations of the lanthanides and actinides by elution with ammonium alpha-hydroxy-isobutyrate journal October 1956
A new eluant for the separation of the actinide elements journal January 1956
Chemical separations for super-heavy element searches in irradiated uranium targets journal February 1975
Extraction Chromatographic Materials for Clean Hydrometallurgical Separation of Rare-Earth Elements Using Diglycolamide Extractants journal October 2019
Separation of actinides from Low Level Liquid Wastes (LLLW) by extraction chromatography using novel DMDOHEMA and TODGA impregnated resins journal January 2004
Novel Extraction of Chromatographic Resins Based on Tetraalkyldiglycolamides: Characterization and Potential Applications journal May 2005
Chemistry of the Transactinide Elements journal January 1995

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Related Subjects

07 ISOTOPE AND RADIATION SOURCES
DGA resin
LN resin
californium
cerium
chromatographic separation
curium
fission products
plutonium
promethium