Extraction of Various Metal Ions from Nitric Acid to n-dodecane by Diglycolamide (DGA) Compounds
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概要
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The extraction of various metals by N,N,N′,N′-tetraoctyldiglycolamide (TODGA) from nitric acid to n-dodecane was investigated. It was obvious that divalent Ca (ionic radius: 100 pm), trivalent and tetravalent ions with ionic radii of 87–113 and 83–94 pm are highly extractable by TODGA. The limits of metal concentration (LOC) for Ca(II), Nd(III) and Zr(IV) in the extraction solvents, TODGA/n-dodecane, TODGA-DHOA(N,N-dihexyloctamide)/n-dodecane, TDDGA (N,N,N′,N′-tetradecyldiglycolamide) and TDdDGA (N,N,N′,N′-tetradodecyldiglycolamide) were determined. It is evident that LOC is influenced strongly by and increases with DHOA concentration and the length of alkyl chain attached to N atom of DGA.
- 2007-03-25
著者
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Kimura Takaumi
Japan Atomic Energy Agency
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SASAKI Yuji
Japan Atomic Energy Agency
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ZHU Zhi-Xuan
Japan Atomic Energy Agency
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SUGO Yumi
Japan Atomic Energy Agency
関連論文
- Extraction of Various Metal Ions from Nitric Acid to n-dodecane by Diglycolamide (DGA) Compounds
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- Formation of Outer- and Inner-Sphere Complexes of Lanthanide Elements at Montmorillonite-Water Interface
- Mutual Separation of Actinides from Middle Lanthanides by the Combination of Two Neutral Donors, N,N,N',N'-Tetraoctyl-3,6-dioxaoctanediamide and N,N,N',N'-Tetraethyldiglycolamide
- Extraction of Actinides and Fission Products by the New Ligand, N,N,N',N'-Tetraoctyl-3,6-dioxaoctanediamide
- Size Selective Extraction of N,N,N',N'-Tetraoctyldiglycolamide and the Structure of Its Divalent Metal Complex
- Highly Selective Extraction of TcO_4^-, ReO_4^-, and MoO_4^ by the New Ligand, 2,2'-(Methylimino)bis(N,N-Dioctylacetamide) (MIDOA)
- Extraction Capacity of Diglycolamide Derivatives for Ca(II), Nd(III) and Zr(IV) from Nitric Acid to n-Dodecane Containing a Solvent Modifier
- Comparison of Four Bidentate Phosphoric and Diamide Compounds for the Extractability of Actinides