Abstract
To simplify TRPO process, a novel ligand, N,N’-dimethyl-3-oxa-glutaramic acid (DMOGA), was synthesized and used for stripping of An(III, IV) from 30% TRPO-kerosene. The distribution ratios for transuranium elements, including Np(IV), Pu(IV), Am(III), and some fission products, including Eu(III), Fe and Zr between 30% TRPO-kerosene and various HNO3-DMOGA solutions were measured. An(III, IV) and Ln(III) extracted to TRPO from simulated high level liquid waste could be recovered with an efficiency of 99.9% above in one stream with a 3-stage crosscurrent strip experiment with 0.2M DMOGA in HNO3 solution. Using this new agent, the back extraction of TRU elements from loaded TRPO phase becomes more simple and practical. Therefore, the original TRPO process could be simplified.
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Zhang, P., Wang, H., Wang, J. et al. Synthesis of N,N’-dimethyl-3-oxa-glutamic acid and application in the simplification of TRPO process. J Radioanal Nucl Chem 273, 65–71 (2007). https://doi.org/10.1007/s10967-007-0712-1
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DOI: https://doi.org/10.1007/s10967-007-0712-1