The Elution Behavior of Rare Earth Elements in Diethylene Triamine N,N,N',N',N

陰 Ion 交換樹脂에 依한 稀土類元素의 溶離行動에 關한 硏究

  • Oh Jin Jung (Department of Chemistry, Chosun University) ;
  • Il Doo Kim (Department of Chemistry, Chosun University) ;
  • Gyou Soo Lee (Department of Chemistry, Jun nam National Univeristy) ;
  • Ki-Won Cha (Department of Chemistry, Inha University)
  • 정오진 (조선대학교 문리과대학 화학과) ;
  • 김일두 (조선대학교 문리과대학 화학과) ;
  • 이계수 (전남대학교 자연과학대학 화학과) ;
  • 차기원 (인하대학교 이과대학 화학과)
  • Published : 1984.02.20

Abstract

The separation of the rare earth elements with diethylene triamine N, N, N', N', N"-pentaacetic acid (DTPA) as eluent was carried out at different pH and concentrations by using anion exchange resin column. The rare earth elements were absorbed on the upper of the resin column and the best condition of the separation behavior was 0.025M of DTPA at pH 8.35. The elution order of the rare earths was in the order of the atomic number of the rare earth elements except samarium. The resolution of adjacent rare earth elements that have been separated with 0.025M-DTPA as eluent, was from 3.03 to 1.25 at pH 8.35. Resolution of Ce-Pr was maximum value in 3.03 and Eu-Gd was minimum in 1.25 at condition mentioned above, respectively. The resolution of rare earth elements separated with 0.025M DTPA eluent was very good at pH range of 8.0~8.6.

Keywords

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