Adsorption and Separation of Sr(II) and Y(III) by Extraction Chromatography Using HDEHP-impregnated Adsorbent

• KIM Seong-Yun

  Department of Quantum Science and Energy Engineering, Graduate School of Engineering, Tohoku University

• ITO Tatsuya

  Department of Quantum Science and Energy Engineering, Graduate School of Engineering, Tohoku University

抄録

To separate Y (III) and Sr(II) from a Sr(II)-Y(III) mixed solution, a silica-based (HDEHP+Oct)/SiO₂-P adsorbent was prepared by successive impregnation and fixing the bis(2-ethylhexyl)phosphate (HDEHP) and its molecule modifier 1-octanol into the macroporous SiO₂-P support with a mean diameter of 50 μm. The adsorption and separation of Y(III) and Sr(II) from HNO₃ or HCl solutions onto the adsorbent were investigated by batch and column methods. The adsorbent showed a higher adsorption affinity to Y(III) than Sr(II). The adsorption of Y(III) decreased as the acidity of the solution increased. The adsorption of Y(III) could be expressed by the Langmuir adsorption model and was governed by chemisorption. In column experiments, using a column packed with (HDEHP+Oct)/SiO₂-P adsorbent, Sr(II) and Y(III) were eluted by HNO₃ or HCl solution, respectively. The separation of Y(III) from Sr(II)-Y(III) mixed solution was achieved successfully.

収録刊行物

• 日本イオン交換学会誌

  日本イオン交換学会誌 29 (3), 110-115, 2018-09-20

  日本イオン交換学会

キーワード

• Yttrium
• Strontium
• Separation
• Extraction Chromatography
• Bis(2-ethylhexyl)phosphate

詳細情報

• CRID: 1390845713000981632
• NII論文ID: 130007485213
• DOI: 10.5182/jaie.29.110
• ISSN: 18843360
• ISSN: 0915860X
• Web Site: https://www.jstage.jst.go.jp/article/jaie/29/3/29_110/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可