Corrosion behavior of SUS316 clad in alkalis molybdate melt

Nagai, Takayuki ; Kikuchi, Kotaro*; Kano, Yoshiharu*; Fukushima, Mineo

Study of a new pyrochemical processing using alkaline molybdate melt has been carrying out as a candidate reprocessing process for spent oxide fuels. In our previous study, we had confirmed that melting of UO $_{2}$ pellet into a molten Na $_{2}$ MoO $_{4}$ -MoO $_{3}$ and electrolytic recovering of UO $_{2}$ from the melt included uranyl ions. In this report, the corrosion behavior of the SUS316 cladding tube in molten Na $_{2}$ MoO $_{4}$ -MoO $_{3}$ was evaluated, and we confirmed the dissolution of SUS316 elements into the melt when the amount of additional MoO $_{3}$ was excess. And, it is necessary to understand an appropriate amount of additional MoO $_{3}$ since the result of this study.

Language	:	Japanese
Journal	:	Nihon Genshiryoku Gakkai Wabun Rombunshi
Volume	:	7
Number	:	4
Pages	:	p.370 - 379
Publication Year/Month	:	2008/12
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Paper URL	:	https://doi.org/10.3327/taesj.J07.050
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Keywords	:	no keyword
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Registration No. : AA20070715
JAEA Abstracts No. : 37000188
Paper Submission No. : 5168

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