2024 Annual Meeting

Presentation information

Oral presentation

V. Nuclear Fuel Cycle and Nuclear Materials » 504-2 Nuclear Chemistry, Radiochemistry, Analytical Chemistry, Chemistry of Actinide Elements

[2C01-03] Aqueous Separation and Aanalytical Technique 2

Wed. Mar 27, 2024 9:30 AM - 10:20 AM Room C (21Bildg.2F 21-205)

Chair:Ikuo Wakaida(JAEA)

10:00 AM - 10:15 AM

[2C03] Evaluation of Bis(2-pyrrolidone) Derivative having Adamantane Cross-Linking Moiety as a UO22+-Pu4+ Co-Precipitant for NUMAP Reprocessing

*Ryoma Ono1, Robert Gericke2, Juliane März2, Satoru Tsushima1,2, Koichiro Takao1 (1. Tokyo Tech, 2. HZDR)

Keywords:Pu(IV), Uranyl Nitrate, Nuclear Fuel Reprocessing, Crystal Structure, Solubility

We evaluated a double-headed 2-pyrrolidone derivative bearing 1,3-adamantane linker (L) as a UO22+-Pu4+ co-precipitant from HNO3(aq). Consequently, L afforded sparingly soluble compounds with UO22+ and Pu4+ to form [UO2(NO3)2L]n and [H2L2][Pu(NO3)6] soluble at 3.5 mM and 10.1 mM in 3 M HNO3(aq), respectively.

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