Extraction mechanism of rare earth metals in the presence of diethylenetriaminepentaacetic acid in aqueous phase.
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概要
- 論文の詳細を見る
The extraction rates of Er<SUP>3+</SUP> and Y<SUP>3+</SUP> from an aqueous phase containing diethylenetriaminepentaacetic acid (DTPA) to an organic phase containing di(2,4,4-trimethylpentyl) phosphinic acid in <I>n</I>-heptane were experimentally determined with both a transfer cell having a constant interface area and an agitated vessel in which organic phase was dispersed finely. The selectivity obtained was about 5.5, which was much larger than that by the usual solvent extraction: The selectivities for the various cases were studied in detail. The extraction rates and selectivity were quantitatively analyzed by taking account of the dissociation reactions of the rare earth metal DTPA complexes in the aqueous stagnant layer.
- The Society of Chemical Engineers, Japanの論文
著者
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Matsuyama Hideto
Department Of Chemical Science And Engineering Kobe University
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Teramoto Masaaki
Department Of Chemistry And Material Technology Kyoto Institute Of Technology
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Okamoto Takahiro
Department Of Endocrine Surgery School Of Medicine Tokyo Women's Medical University
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Miyake Yoshikazu
Department Of Chemical Energy And Environmental Engineering Faculty Of Environmental And Urban Engin
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TERAMOTO MASAAKI
Department of Chemical Engineering, Kyoto University
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