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Recovery of ruthenium by solvent extraction and direct electrodeposition using ionic liquid solution
http://hdl.handle.net/10131/00012088
http://hdl.handle.net/10131/000120889aa1939c-9229-4384-a1b9-8d4b83ca189a
名前 / ファイル | ライセンス | アクション |
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HYDROM_2018_256_Revision 2_V0.pdf (14.8 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2018-12-05 | |||||
タイトル | ||||||
タイトル | Recovery of ruthenium by solvent extraction and direct electrodeposition using ionic liquid solution | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | Direct electrodeposition, Ionic liquid, Ruthenium, Solvent extraction | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Yueqi, Song
× Yueqi, Song× Tsuchida, Yusuke× Matsumiya, Masahiko× Tsunashima, Katsuhiko |
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著者所属 | ||||||
Graduate School of Environment and Information Sciences, Yokohama National University | ||||||
著者所属 | ||||||
Graduate School of Environment and Information Sciences, Yokohama National University | ||||||
著者所属 | ||||||
Graduate School of Environment and Information Sciences, Yokohama National University | ||||||
著者所属 | ||||||
Department of Materials Science, National Institute of Technology, Wakayama College | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | It is important to recover Ru metal from spent target materials including Pt, Co and Cr. The extraction behavior using di-(2-hylhexyl)phosphoric acid (HDEHP) and ionic liquid (IL), triethyl-n-pentyl phosphonium bis(trifluoromethyl-sulfonyl)amide; [P2225][TFSA] diluent was investigated with pH dependence. Co(II) and Cr(II) were selectively extracted into the organic phase because the extraction of Co(II) and Cr(II) proceeded by cation exchange. As a result, Pt(IV) and Ru(III) can be separated from Co(II) and Cr(II) by controlling the pH. Moreover, the extraction mechanism of Ru(III) with the Alamine336 (A336)/[P2225][TFSA] system was based on the following anion exchange reaction; [R3NH+Cl−]org + [RuCl4(H2O)2−]aq ⇔ [R3NH+RuCl4(H2O)2−]org + [Cl−]aq, (R = CH3(CH2)7-/CH3(CH2)9-).The electrochemical behavior for Ru(III) in the [P2225][TFSA] was investigated by cyclic voltammetry at 373 K. It was revealed that two step cathodic reactions: Ru(III) + e− → Ru(II) and Ru(II) + 2e− → Ru(0) were proceeded in the [P2225][TFSA] system. Moreover, the potentiostatic electrodeposition allowed us to recover the blackish electrodeposits, which were identified as most of Ru metal by EDX analysis. Finally, we investigated the reuse of the Ru(III) in A336/IL solvent for continuous extraction and lectrodeposition. The extraction percentage of Ru(III) using A336/IL remained relatively high (81.5–96.1%) for the 1st − 5th cycles. This series of experimental results enabled us to demonstrate that Ru metal can be obtained from direct electrodeposition of the extracted [R3NH+RuCl4(H2O)2−] in the A336/[P2225][TFSA] system | |||||
書誌情報 |
Hydrometallurgy 巻 181, p. 164-168, 発行日 2018-11 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0304386X | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1016/j.hydromet.2018.09.011 | |||||
権利 | ||||||
権利情報 | ©2018, Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
出版者 | ||||||
出版者 | Elsevier B.V. |