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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.1
- 수록면
- 210 - 216 (7page)
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The separation of Ir(IV) and Rh(III) by solvent extraction with Cyanex 921 was investigated in the HCl concentration ranges from .1 to 9 M. Ir(IV) was selectively extracted over Rh(III) by Cyanex 921 in the experimental ranges. Ir(IV) extraction was greatly affected by HCl concentration, while Rh(III) extraction was insensitive to HCl concentration. The highest separation factor between Ir(IV) and Rh(III) was obtained at 1 M HCl solution. The addition of TBP prevented the formation of a third phase and improved phase separation. Both metals ions were completely stripped from the loaded Cyanex 921 by HCl, (NH4)2S2O3, NH4Cl, NaSCN, HClO4, NaOH, and (NH2)2CS, while employment of (NH4)2S2O3 solution led to selective stripping of Ir(IV) over Rh(III). A process for the separation of Ir(IV) and Rh(III) can be developed by extraction with Cyanex 921 followed by stripping with (NH4)2S2O3.
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참고문헌 (34)
참고문헌 신청
Ashrafizadeh, S. N. / 1995 / Formation of W/O microemulsions in the extraction system Rh(III)-HCl-Kelex 100 and its impact on Rh(III) distribution / Journal of Colloid and Interface Science 173(2):448~459
Benguerel, E. / 1996 / Speciation and separation of rhodium (III) from chloride solutions: A critical review / Hydrometallurgy 40(1-2):135~152
Berg, E. W. / 1969 / Separation of osmium and ruthenium by solvent extraction / Analytica Chimica Acta 47(2):360~363
Berg, E. W. / 1955 / Ion exchange separation of rhodium and iridium / Analytical Chemistry 27(8):1255~1256
Berg, E. W. / 1958 / Separation of rhodium and iridium by multiple fractional extraction / Analytica Chimica Acta 19:109~113
Benguerel, E. / 1996 / Speciation and separation of rhodium (III) from chloride solutions: A critical review / Hydrometallurgy 40(1-2):135~152
Berg, E. W. / 1969 / Separation of osmium and ruthenium by solvent extraction / Analytica Chimica Acta 47(2):360~363
Berg, E. W. / 1955 / Ion exchange separation of rhodium and iridium / Analytical Chemistry 27(8):1255~1256
Berg, E. W. / 1958 / Separation of rhodium and iridium by multiple fractional extraction / Analytica Chimica Acta 19:109~113
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