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2-Ethylhexanal OximeによるNi2+の抽出速度におよぼす添加剤の効果
http://hdl.handle.net/10112/5771
http://hdl.handle.net/10112/577111f8fee8-2f27-4661-8f3c-db2e81248845
名前 / ファイル | ライセンス | アクション |
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KU-1100-20040000-03.pdf (721.8 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2011-12-15 | |||||
タイトル | ||||||
言語 | ja | |||||
タイトル | 2-Ethylhexanal OximeによるNi2+の抽出速度におよぼす添加剤の効果 | |||||
言語 | ||||||
言語 | jpn | |||||
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 | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
その他のタイトル | ||||||
その他のタイトル | Effect of Addictive Agent on Extraction Rate of Ni2+ with 2-Ethylhexanal Oxime | |||||
言語 | en | |||||
著者 |
芝田, 隼次
× 芝田, 隼次× 村山, 憲弘× 間宮, 聡× 山本, 秀樹 |
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概要 | ||||||
内容記述タイプ | Other | |||||
内容記述 | In the previous work, it was found that the extraction rate of Ni2+ with 2-ethylhexanal oxime (abbreviated as EHO) from wasted FeCl3 etching solution was extremely slow. This is because the substitution reaction of the hydrated Ni2+ ions, Ni(H2O)62+ with the extractant is a rate determining step. In order to improve the extraction rate of Ni2+, the extraction rate was investigated by adding D2EHPA or TBP as a second extractant to the main extractant EHO. The big enhancement of Ni2+ extraction rate is found when the second extractants, D2EHPA or TBP, are added in a small amount to EHO. As an example, the addition of 0.1mol/dm3 D2EHPA and TBP results in 18 and 30 times enhancement of Ni2+ extraction. The extraction rate equation for Ni2+ is induced so as to be a reversible reaction. Then, the apparent rate constants for forward and backward reactions were calculated according to the induced rate equation. The forward extraction rate is proportional to the 1st order of Ni2+ concentration, TBP concentration and EHO concentration, while the backward extraction rate is proportional to the 1st order of Ni2+ concentration, which is written as, -d[Ni2+] / dt = kf*[Ni2+]aq [EHO]org [TBP]org -kb*[Ni2+]aq The above extraction rate expression is reasonably explained by imaging the following elementary reactions and assuming the second reaction to be a rate determining step, Ni(H2O)62+ + TBPad ⇔ Ni(H2O)52+ · TBPad Ni(H2O)52+ · TBPad + EHOad → Ni(H2O)52+ · EHOad + TBPad |
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言語 | en | |||||
書誌情報 |
ja : 資源と素材 : 資源・素材学会誌 巻 120, 号 12, p. 653-657, 発行日 2004 |
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ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 09161740 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN10062646 | |||||
権利 | ||||||
権利情報 | 資源・素材学会(http://www.jstage.jst.go.jp/browse/shigentosozai/_vols/-char/ja) | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
言語 | ja | |||||
出版者 | 資源・素材学会 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 2-Ethylhexanal Oxime | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 溶解抽出 (Solvent Extraction) | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 協同効果 (Synergistic Effect) | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 抽出速度 (Extraction Rate) | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ニッケルイオン (Ni2+) |