Extraction and stripping behavior of platinum group metals using an amic-acid-type extractant

Wataru Yoshida, Yuzo Baba, Fukiko Kubota, Noriho Kamiya, Masahiro Goto

研究成果: ジャーナルへの寄稿記事

7 引用 (Scopus)

抄録

The recovery and separation of platinum group metals (PGMs) are of considerable significance for metal sustainability. To establish an efficient extraction process for PGMs, the novel extractant N-[N,N-di(2-ethylhexyl)aminocarbonylmethyl] phenylalanine (D2EHAF), containing a phenylalanine moiety as the metal-affinity group, was synthesized. The extraction of PGMs from aqueous HCl and HNO3 solutions with D2EHAF, or our previously developed N-[N,N-di(2-ethylhexyl) aminocarbonylmethyl]glycine (D2EHAG), in n-dodecane was investigated. Both D2EHAF and D2EHAG exhibited high extraction affinities for Os4+, Pt4+, and Pd2+ in aqueous HCl. In a HNO3 solution, D2EHAF extracted Pd2+ more efficiently than D2EHAG, and the extraction of Pd2+ from a 1 mol dm-3 HNO3 solution with D2EHAF proceeded quantitatively. The extracted metal ions were stripped from the organic solution using a highly acidic solution, or thiourea.

元の言語英語
ページ(範囲)521-526
ページ数6
ジャーナルJOURNAL OF CHEMICAL ENGINEERING OF JAPAN
50
発行部数7
DOI
出版物ステータス出版済み - 1 1 2017

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Platinum
Metals
Acids
Glycine
Amino acids
Phenylalanine
Thiourea
Thioureas
Metal ions
Sustainable development
Recovery

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

これを引用

Extraction and stripping behavior of platinum group metals using an amic-acid-type extractant. / Yoshida, Wataru; Baba, Yuzo; Kubota, Fukiko; Kamiya, Noriho; Goto, Masahiro.

:: JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 巻 50, 番号 7, 01.01.2017, p. 521-526.

研究成果: ジャーナルへの寄稿記事

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abstract = "The recovery and separation of platinum group metals (PGMs) are of considerable significance for metal sustainability. To establish an efficient extraction process for PGMs, the novel extractant N-[N,N-di(2-ethylhexyl)aminocarbonylmethyl] phenylalanine (D2EHAF), containing a phenylalanine moiety as the metal-affinity group, was synthesized. The extraction of PGMs from aqueous HCl and HNO3 solutions with D2EHAF, or our previously developed N-[N,N-di(2-ethylhexyl) aminocarbonylmethyl]glycine (D2EHAG), in n-dodecane was investigated. Both D2EHAF and D2EHAG exhibited high extraction affinities for Os4+, Pt4+, and Pd2+ in aqueous HCl. In a HNO3 solution, D2EHAF extracted Pd2+ more efficiently than D2EHAG, and the extraction of Pd2+ from a 1 mol dm-3 HNO3 solution with D2EHAF proceeded quantitatively. The extracted metal ions were stripped from the organic solution using a highly acidic solution, or thiourea.",
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AU - Goto, Masahiro

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N2 - The recovery and separation of platinum group metals (PGMs) are of considerable significance for metal sustainability. To establish an efficient extraction process for PGMs, the novel extractant N-[N,N-di(2-ethylhexyl)aminocarbonylmethyl] phenylalanine (D2EHAF), containing a phenylalanine moiety as the metal-affinity group, was synthesized. The extraction of PGMs from aqueous HCl and HNO3 solutions with D2EHAF, or our previously developed N-[N,N-di(2-ethylhexyl) aminocarbonylmethyl]glycine (D2EHAG), in n-dodecane was investigated. Both D2EHAF and D2EHAG exhibited high extraction affinities for Os4+, Pt4+, and Pd2+ in aqueous HCl. In a HNO3 solution, D2EHAF extracted Pd2+ more efficiently than D2EHAG, and the extraction of Pd2+ from a 1 mol dm-3 HNO3 solution with D2EHAF proceeded quantitatively. The extracted metal ions were stripped from the organic solution using a highly acidic solution, or thiourea.

AB - The recovery and separation of platinum group metals (PGMs) are of considerable significance for metal sustainability. To establish an efficient extraction process for PGMs, the novel extractant N-[N,N-di(2-ethylhexyl)aminocarbonylmethyl] phenylalanine (D2EHAF), containing a phenylalanine moiety as the metal-affinity group, was synthesized. The extraction of PGMs from aqueous HCl and HNO3 solutions with D2EHAF, or our previously developed N-[N,N-di(2-ethylhexyl) aminocarbonylmethyl]glycine (D2EHAG), in n-dodecane was investigated. Both D2EHAF and D2EHAG exhibited high extraction affinities for Os4+, Pt4+, and Pd2+ in aqueous HCl. In a HNO3 solution, D2EHAF extracted Pd2+ more efficiently than D2EHAG, and the extraction of Pd2+ from a 1 mol dm-3 HNO3 solution with D2EHAF proceeded quantitatively. The extracted metal ions were stripped from the organic solution using a highly acidic solution, or thiourea.

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