Affiliation:
1. Chemical Sciences and Engineering Division, Argonne National Laboratory
2. Argonne National Laboratory, Chemical Sciences and Engineering Division, U.S.A.
3. Argonne National Laboratory, Chemical Sciences and Enineering Division, U.S.A.
Abstract
Abstract
Bench-scale studies to determine the extraction behavior of Pu, Np, Am and lanthanides with the organophosphorus extractants TBP, CMPO and HDEHP have been carried out. Based on the results obtained using actual spent nuclear fuel solutions, enhancements to the NPEX, TRUEX and TALSPEAK processes have been successful. In NPEX, >99.94% of both Np and Pu were separated from the fission products. In TRUEX, essentially complete recovery of the actinides (An) and the lanthanides (Ln) was achieved. In TALSPEAK, the complete separation of Pu, Np and Am from the lanthanides was demonstrated several times under various process conditions. The recovery of transuranics (TRU), including Am and Cm, is nearly 100% (below detection limit in the Ln stream), while the total recovery of Ln in the product stream exceeded 99.97%.
Subject
Physical and Theoretical Chemistry
Cited by
33 articles.
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