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The development of an innovative-SANEX process for the selective recovery of 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 for the selective An(III) stripping. First, a glycine-buffered DTPA solution was successfully employed. A great improvement was the use of the hydrophilic SO3-Ph-BTP,...
An innovative SANEX process was designed using an organic phase comprising TODGA in TPH + 5% 1-octanol and an aqueous phase containing SO3-Ph-BTP for the selective strip. The flow-sheet was optimized using batch data, single stage data and data from previously run TODGA processes. Recoveries for some key elements were calculated for selective strip section of the process using the SX Process program...
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