[2H08-12] Separation Technology

[2H12] Study on the electronic structure of HONTA for minor actinide separation

*Ryoutarou Masuda¹, Saki Ootaka¹, Tatsuo Gejo¹, Satoshi Takeuchi¹, Jun-ichi Adachi², Masamitsu Hoshino³, Tomohiro Toigawa⁴, Yasunori Miyazaki⁴, Yuichi Sano⁴, Masayuki Takeuchi⁴ (1. Hyogo University, 2. High Energy Accelerator Research Organization, 3. Sophia University, 4. Japan Atomic Energy Agency)

Keywords:minor actinide, photoemission spectroscopy

N,N,N',N',N'',N''-hexaoctyl nitrilotriacetamide (HONTA) is given attention for selective minor actinide recovery from high-level liquid waste generated by spent nuclear fuel reprocessing. In this study, the electronic structures of HONTA and its protonation in HNO3 were investigated by photoelectron spectroscopy at PF BL20A in KEK, and their ionization energies were compared to estimate the effect of radiation. NMR was also performed to elucidate theinteraction of HONTA and HNO3.