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Separating the Minor Actinides Through Advances in Selective Coordination Chemistry

Description: This report describes work conducted at the Pacific Northwest National Laboratory (PNNL) in Fiscal Year (FY) 2012 under the auspices of the Sigma Team for Minor Actinide Separation, funded by the U.S. Department of Energy Office of Nuclear Energy. Researchers at PNNL and Argonne National Laboratory (ANL) are investigating a simplified solvent extraction system for providing a single-step process to separate the minor actinide elements from acidic high-level liquid waste (HLW), including separating the minor actinides from the lanthanide fission products.
Date: August 22, 2012
Creator: Lumetta, Gregg J.; Braley, Jenifer C.; Sinkov, Sergey I. & Carter, Jennifer C.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Sigma Team for Minor Actinide Separation: PNNL FY 2011 Status Report

Description: This report summarizes work conducted in FY 2011 at PNNL to investigate new methods of separating the minor actinide elements (Am and Cm) from the trivalent lanthanide elements, and separation of Am from Cm. For the former, work focused on a solvent extraction system combining an acidic extractant (HDEHP) with a neutral extractant (CMPO) to form a hybrid solvent extraction system referred to as TRUSPEAK (combining the TRUEX and TALSPEAK processes). For the latter, ligands that strongly bing uranyl ion were investigated for stabilizing corresponding americyl ion.
Date: August 13, 2011
Creator: Lumetta, Gregg J.; Braley, Jenifer C.; Sinkov, Sergey I.; Levitskaia, Tatiana G.; Carter, Jennifer C.; Warner, Marvin G. et al.
Item Type: Report
Partner: UNT Libraries Government Documents Department