The recovery of An(III) in an innovative-SANEX process using a TODGA-based solvent and selective stripping with a hydrophilic BTP
作者： Andreas Wilden , Giuseppe Modolo , Michal Sypula , Andreas Geist , Daniel Magnusson
DOI: 10.1016/J.PROCHE.2012.10.065
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摘要: Abstract The development of an innovative-SANEX process for the selective recovery trivalent actinides from PUREX raffinate using a TODGA/1-octanol based solvent is presented. CDTA was used to efficiently mask Zr and Pd. Two options were studied An(III) stripping. First, glycine-buffered DTPA solution successfully employed. A great improvement use hydrophilic SO3-Ph-BTP, which allowed stripping even at 0.5 mol/L HNO3 without buffering or salting-out agents, making advanced partitioning easier more efficient. High Ln/Am separation factors achieved in single centrifugal contactor tests.
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