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Sasaki, Yuji; Ban, Yasutoshi; Morita, Keisuke; Matsumiya, Masahiko*; Ono, Ryoma*; Shiroishi, Hidenobu*
Solvent Extraction Research and Development, Japan, 27(1), p.63 - 67, 2020/00
Times Cited Count：6 Percentile：31.74(Chemistry, Multidisciplinary)Mutual separation technique of Dy and Nd in Nd magnet is studied. Dy is more valuable than Nd, then Dy might be isolated and reused. Lanthanide elements can be extracted thoroughly by diglycolamide (DGA) extractants, we use this reagent for the recovery and isolation of Dy. Tetradodecyl-DGA (TDdDGA) has relatively high separation factors(SF) between Dy and Nd (SF=17-18) in HNO
extraction system, counter-current extraction using TDdDGA was applied for their mutual separation. From the present study, using the condition, four extraction stages, organic phase: 0.1M TDdDGA in n-dodecane, aqueous phase: 0.3M HNO, 92% Dy can be recovered with 0.7% co-extraction of Nd.
; Kiuchi, Kiyoshi
JAERI-Research 95-031, 28 Pages, 1995/03
JAERI-Research-95-031.pdf:2.08MB
no abstracts in English
; Kiuchi, Kiyoshi
JAERI-Research 95-030, 34 Pages, 1995/03
JAERI-Research-95-030.pdf:2.0MB
no abstracts in English
; ; *
Anal. Chem., 59, p.400 - 405, 1987/00
Times Cited Count：35 Percentile：84.9(Chemistry, Analytical)no abstracts in English
; ; ; ;
JAERI-M 86-032, 10 Pages, 1986/03
no abstracts in English
Miyoshi, Yoshinori; ;
JAERI-M 84-219, 58 Pages, 1984/12
no abstracts in English
; *; Miyoshi, Yoshinori
JAERI-M 83-047, 66 Pages, 1983/03
no abstracts in English
Tachikawa, Enzo
Genshiryoku Kogyo, 19(12), p.50 - 52,76, 1973/12
no abstracts in English
;
Bunseki Kagaku, 18(10), p.1264 - 1265, 1969/00
no abstracts in English
Ueno, Fumiyoshi; Irisawa, Eriko; Seki, Masaharu; Abe, Hitoshi
no journal, ,
no abstracts in English
Yamamoto, Masahiro; Kato, Chiaki; Motooka, Takafumi; Irisawa, Eriko; Ban, Yasutoshi; Ueno, Fumiyoshi
no journal, ,
Stainless steels used in nuclear fuel reprocessing plant occur intergranular corrosion by boiling nitric acid solution containing some cations. Reduction reaction of these cations accelerates corrosion rate of stainless steel, and then, they are re-oxidized to initial state in bulk nitric acid solution. These re-oxidized cations repeatedly concern corrosion reaction of stainless steel. The re-oxidation rates of typical cations were analyzed in the present work. As the result, Np ion accelerates corrosion of stainless steel in a little amount because it has both large reduction reaction rate and re-oxidation rate.
Ambai, Hiromu; Takahatake, Yoko; Sano, Yuichi; Takeuchi, Masayuki; Koizumi, Kenji; Yamashita, Shinichiro; Sakamoto, Kan*
no journal, ,
A FeCrAl-ODS steel has been developed for the accident tolerant fuel cladding of light water reactors in Japanese projects. Spent fuel are reprocessed in Japan, namely spent fuel pins are chopped and immersed into a hot nitric acid solution to leach out the fuel. Behavior of the corrosion products from fuel cladding should be evaluated to estimate the influence of those on the reprocessing process. In this study, effect of nitric acid concentration on corrosion behavior of Fe-12Cr-6Al based oxide dispersion strengthened steels was evaluated.
Takahatake, Yoko; Sakamoto, Atsushi; Asanuma, Noriko*; Matsuura, Haruaki*; Watanabe, So; Watanabe, Masayuki
no journal, ,
no abstracts in English
