2017 Annual Meeting

Presentation information

Oral presentation

IV. Nuclear Fuel Cycle and Nuclear Materials » 404-3 Fuel Reprocessing

[3I01-03] Development of minor actinide recovery processes 1

Wed. Mar 29, 2017 9:30 AM - 10:20 AM Room I (16-304 Building No.16)

Chair: Tsuyoshi Murakami (CRIEPI)

9:45 AM - 10:00 AM

[3I02] Radiolysis of HONTA extractant for MA/RE separation

*Tomohiro Toigawa1, Hideya Suzuki1, Yasutoshi Ban1, Sho Ishii1, Tatsuro Matsumura1 (1. Japan Atomic Energy Agency)

Keywords:MA/RE separation, solvent extraction, HONTA, Rasiolysis

Degradation of extractants and generation of radiolytic products are considered as problem for feasibility of the minor actinides separation process. In this study, degradation amount of hexaoctyl-nitrilotriacetamide (HONTA), which is a candidate extaractant for MA/Ln separation, and its products yields were obtained by using gamma-rays emitted from Co-60. Our results showed the cleavage sites in HONTA radiolysis and suggest that the mechanism for HONTA radiolysis is differ depending on the absorbed dose.