Treatment of U contaminated waste generated from nuclear fuel fabrication process: (1) Ce(IV) recovery by temperature swing extraction with monoamides

Toshihiro Iwamoto; Madoka Saito; Yoko Takahatake; Sou Watanabe; Masayuki Watanabe; Atsuki Naruse; Takehiko Tsukahara

doi:10.1299/jsmeicone.2023.30.1252

2023.30

Session ID : 1252

DOI https://doi.org/10.1299/jsmeicone.2023.30.1252

Conference information

Host: The Japan Society of Mechanical Engineers

Name : The 30th International Conference on Nuclear Engineering (ICONE30)

Date : May 21, 2023 - May 26, 2023

Treatment of U contaminated waste generated from nuclear fuel fabrication process: (1) Ce(IV) recovery by temperature swing extraction with monoamides

Toshihiro Iwamoto, Madoka Saito, Yoko Takahatake, Sou Watanabe, Masayuki Watanabe, Atsuki Naruse, Takehiko Tsukahara

Author information

Keywords: Uranium recovery, monoamide extractant, cerium, gelling extraction method, thermoresponsive polymer

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Abstract

Applicability of temperature swing extraction technology employing monoamides was examined for uranium contaminated waste treatment procedure. Separation experiments on simulated target solution with three kinds of monoamides with different structure showed that Ce(IV) in the solution was selectively recovered by the temperature swing extraction operation. Based on the experiments, an appropriate monoamide for the procedure was selected.

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