Distribution coefficients of La, Ce, Pr, Nd, and Sm on Cyanex 923-, D2EHPA-, and PC88A-impregnated resins

Gwang Seop Lee, Masahito Uchikoshi, Kouji Mimura, Minoru Isshiki

研究成果: Article査読

68 被引用数 (Scopus)

抄録

Distribution coefficients of La, Ce, Pr, Nd, and Sm on solvent-impregnated resins were determined in hydrochloric acid media for the purpose of La purification. Trialkylphosphine (Cyanex 923), 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester (PC88A), and di(2-ethylhexyl) phosphoric acid (D2EHPA) were used as the extractant for the solvent-impregnated resin in the present work. Separation factors were also obtained in order to estimate the potential for the separation of Ce, Pr, Nd, and Sm from La. We found that the extraction mechanism by which the solvent-impregnated resin works is similar to that of solvent extraction. Separation factors between La and the other light rare earth elements and a high sorption rate indicated that the D2EHPA-impregnated resin is the best adsorbent for purification of La among the three tested solvent-impregnated resins.

本文言語English
ページ(範囲)79-85
ページ数7
ジャーナルSeparation and Purification Technology
67
1
DOI
出版ステータスPublished - 2009 5月 18

ASJC Scopus subject areas

  • 分析化学
  • ろ過および分離

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