Mutual separation of indium, gallium, and zinc with the amic acid-type extractant D2EHAG containing glycine and amide moieties

Yuzo Baba; Fukiko Kubota; Noriho Kamiya; Masahiro Goto

doi:10.15261/serdj.23.9

Mutual separation of indium, gallium, and zinc with the amic acid-type extractant D2EHAG containing glycine and amide moieties

Yuzo Baba, Fukiko Kubota, Noriho Kamiya, Masahiro Goto

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Solvent extraction of indium (In³⁺), gallium (Ga³⁺), and zinc (Zn²⁺) was investigated using N-[N,N-di(2-ethylhexyl)aminocarbonylmethyl]glycine (D2EHAG) and N-[N,N-di(2-ethylhexyl)aminocarbonylmethyl]-sarcosine (D2EHAS) which we have developed recently. Indium and gallium were selectively extracted from zinc under high acid conditions (0 > pH ≥ 2.0), and easily stripped using an acidic solution such as 2 mol dm^-3 HNO₃. The extraction behavior was compared to that of N,N-dioctyldiglycol amic acid (DODGAA), which has a similar molecular structure to D2EHAG, a commercial alkyl monocarboxylic acid extractant, neodecanoic acid (Versatic 10), or an organophosphorus extractant, di(2-ethylhexyl) phosphoric acid (D2EHPA). Based on the results, D2EHAG and D2EHAS were found to be useful for the separation of In³⁺ and Ga³⁺ from Zn²⁺. The extraction mechanisms of these ions with D2EHAG were investigated through slope analysis and loading tests.

Original language	English
Pages (from-to)	9-18
Number of pages	10
Journal	Solvent Extraction Research and Development
Volume	23
Issue number	1
DOIs	https://doi.org/10.15261/serdj.23.9
Publication status	Published - 2016

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)

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title = "Mutual separation of indium, gallium, and zinc with the amic acid-type extractant D2EHAG containing glycine and amide moieties",

abstract = "Solvent extraction of indium (In3+), gallium (Ga3+), and zinc (Zn2+) was investigated using N-[N,N-di(2-ethylhexyl)aminocarbonylmethyl]glycine (D2EHAG) and N-[N,N-di(2-ethylhexyl)aminocarbonylmethyl]-sarcosine (D2EHAS) which we have developed recently. Indium and gallium were selectively extracted from zinc under high acid conditions (0 > pH ≥ 2.0), and easily stripped using an acidic solution such as 2 mol dm-3 HNO3. The extraction behavior was compared to that of N,N-dioctyldiglycol amic acid (DODGAA), which has a similar molecular structure to D2EHAG, a commercial alkyl monocarboxylic acid extractant, neodecanoic acid (Versatic 10), or an organophosphorus extractant, di(2-ethylhexyl) phosphoric acid (D2EHPA). Based on the results, D2EHAG and D2EHAS were found to be useful for the separation of In3+ and Ga3+ from Zn2+. The extraction mechanisms of these ions with D2EHAG were investigated through slope analysis and loading tests.",

author = "Yuzo Baba and Fukiko Kubota and Noriho Kamiya and Masahiro Goto",

year = "2016",

doi = "10.15261/serdj.23.9",

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journal = "Solvent Extraction Research and Development",

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AU - Baba, Yuzo

AU - Kubota, Fukiko

AU - Kamiya, Noriho

AU - Goto, Masahiro

PY - 2016

Y1 - 2016

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AB - Solvent extraction of indium (In3+), gallium (Ga3+), and zinc (Zn2+) was investigated using N-[N,N-di(2-ethylhexyl)aminocarbonylmethyl]glycine (D2EHAG) and N-[N,N-di(2-ethylhexyl)aminocarbonylmethyl]-sarcosine (D2EHAS) which we have developed recently. Indium and gallium were selectively extracted from zinc under high acid conditions (0 > pH ≥ 2.0), and easily stripped using an acidic solution such as 2 mol dm-3 HNO3. The extraction behavior was compared to that of N,N-dioctyldiglycol amic acid (DODGAA), which has a similar molecular structure to D2EHAG, a commercial alkyl monocarboxylic acid extractant, neodecanoic acid (Versatic 10), or an organophosphorus extractant, di(2-ethylhexyl) phosphoric acid (D2EHPA). Based on the results, D2EHAG and D2EHAS were found to be useful for the separation of In3+ and Ga3+ from Zn2+. The extraction mechanisms of these ions with D2EHAG were investigated through slope analysis and loading tests.

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