Extraction of Rh from concentrated HCl by diamide extractant having protonated amino N atom

Sasaki, Yuji ; Kaneko, Masashi ; Ban, Yasutoshi ; Kinoshita, Ryoma*; Matsumiya, Masahiko*; Shinoku, Kota*; Shiroishi, Hidenobu*

We obtained relatively high D(Rh) of approximate 1 by iminodioctamide (IDOA) having tertially amino N atom from concentrated HCl solution. The reason is that IDOA is protonated, behaves as cationic extractant, and extracts anionic RhCl $_6^{3-}$ through ion-pair extraction. Up to now, there is less information on Rh(III) extraction, we investigate the behavior of Rh extraction and discuss with theoretical studies.

Language	:	Japanese
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Meeting title	:	第41回溶媒抽出討論会
Held date	:	2022/11
Location (city)	:	東京
Location (country)	:	日本
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Keywords	:	Rh; 溶媒抽出; IDOA; 塩酸; プロトネーション
Research Facility	:	第4研究棟
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Cooperating Institute	:	横浜国立大学; 東京工業高等専門学校

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Registration No. : BB20220807
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