天然配位子とイオン液体を用いるランタノイドの環境調和型高効率分離システム

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Author: 井村, 久則ほか

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Publication date: 2015-06-13

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Note (General)：: 金沢大学理工研究域物質化学系天然配位子ヒノキチオール（Hipt）およびその類縁体として一連のβ-ジケトン，補助錯形成剤として，疎水性の高い4,7-ジフェニル-1,10-フェナントロリン(dpp)やトリオクチルホスフィンオキシド等を用いて，ランタノイドイオン（Ln）の新規な協同効果抽出を研究した。抽出...

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https://kaken.nii.ac.jp/search/?qm=60142923

https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-25620108/

https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-25620108/25620108seika/

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Material Type: 文書・図像類
Title: 天然配位子とイオン液体を用いるランタノイドの環境調和型高効率分離システム
Author/Editor: 井村, 久則
Imura, Hisanori
Author Heading: 井村, 久則
Imura, Hisanori
Publication Date: 2015-06-13
Publication Date (W3CDTF): 2015-06-13
Alternative Title: Separation of lanthanoid ions by green extraction systems with natural ligand and ionic liquid
Periodical title: 平成26(2014)年度科学研究費補助金挑戦的萌芽研究研究成果報告書 = 2014 Fiscal Year Final Research Report
No. or year of volume/issue: 2013-04-01 - 2015-03-31
Volume: 2013-04-01 - 2015-03-31
Pages: 4p.-
Text Language Code: jpn
Subject Heading: 溶媒抽出
液体膜分離
イオン液体
ランタノイド
Target Audience: 一般
Note (General): 金沢大学理工研究域物質化学系
天然配位子ヒノキチオール（Hipt）およびその類縁体として一連のβ-ジケトン，補助錯形成剤として，疎水性の高い4,7-ジフェニル-1,10-フェナントロリン(dpp)やトリオクチルホスフィンオキシド等を用いて，ランタノイドイオン（Ln）の新規な協同効果抽出を研究した。抽出溶媒として極性の高いo-ジクロロベンゼン（DCB）あるいはイミダゾリウム系イオン液体を用いると，Lnはカチオン性三元錯体として抽出され，重希土選択的な協同効果が発現することが分かった。また，Hipt-dpp-DCB支持液体膜を用いて，Lnの膜輸送の律速段階を明らかにし，NdとDyなどの分離に適用できることを示した。
Novel synergistic extraction of lanthanoid(III) ions (Ln) with hinokitiol (Hipt) or β-diketones as an acidic chelating agent was studied in the presence of a hydrophobic neutral ligand such as 4,7-diphenyl-1,10-phenanthroline (dpp) and trioctylphosphine oxide (TOPO). When 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide was used as the extracting solvent, the extraction of heavier Ln with acetylacetone and benzoylacetone in the presence of TOPO was remarkably enhanced, resulting in a significant improvement in the separation of Ln. The present synergism was caused by the formation of cationic ternary complexes followed by ion exchange into the ionic liquid. Similar cationic ternary complexes were also extracted with Hipt and dpp in o-dichlorobenzene. This synergistic extraction system was applied to the supported liquid membrane (SLM) transport of Ln. The heavier Ln was selectively transported through the SLM and concentrated into the acidic aqueous phase.
研究課題/領域番号:25620108, 研究期間(年度):2013-04-01 - 2015-03-31
DOI: 10.24517/00052877
Access Restrictions: 限定公開
Related Material: https://kaken.nii.ac.jp/search/?qm=60142923
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-25620108/
https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-25620108/25620108seika/
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 金沢大学 : 金沢大学学術情報リポジトリKURA