Organic derivatives of hydrazine and hydroxylamine and future reprocessing of irradiated nuclear fuel
Journal Article
·
· Radiochemistry
OSTI ID:133103
Reductants of Pu and Np that are used in extraction suffer from a number of deficiencies such as the formation of Fe(III), Fe(II), and ammonium (hydrazine) nitrates. This increases the amount of salts in the radioactive waste solutions, the instability of U(IV) in the organic phase, and the potential explosiveness owing to the formation of azides (hydrazine) and others. Therefore, the search for and investigation of new highly efficient reductants of Pu and Np that do not form salts should become an important thrust for improving thrust extraction in the near future. Organic derivatives of hydrazine and hydroxylamine are the first step in this direction. These comparatively rapidly convert Np(VI) to Np(V) and Pu(IV) to Pu(III), thereby stabilizing the pair Pu(III)-Np(V). This is most convenient for separating Pu and Np from U by reductive back-extraction in the first extraction cycle.
- OSTI ID:
- 133103
- Journal Information:
- Radiochemistry, Journal Name: Radiochemistry Journal Issue: 6 Vol. 35; ISSN RDIOEO; ISSN 1066-3622
- Country of Publication:
- United States
- Language:
- English
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