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作者:

Mei, Yan (Mei, Yan.) | Nie, Zuo-Ren (Nie, Zuo-Ren.) (学者:聂祚仁)

收录:

EI Scopus

摘要:

10mol/L NaOH solution was used to saponify P507 (2-ethylhexylphosphonic acid mono-2-ethylhexyl ester) and then to extract and strip the rare earth cerium solution. The experimental procedure and results of the saponified organic phase and loaded organic phase were analyzed using IR spectrum and electrical conductivity meter. The results suggested the conductance value achieved highest when the saponified degree of alkaline solution was 60-80%, and the saponified organic phase formed a single-phase stable and uniform microemulsion. While the rare earth were extracted by P507, the IR absorption frequency of P=O decreased while the absorption intensity increased, suggesting that P=O group had been coordinated with the rare earth ions. More colloidal agglomerates in the loaded organic phase appeared when more rare earth was loaded. © (2013) Trans Tech Publications, Switzerland.

关键词:

Hydrolysis Rare earths Metal ions Extraction Materials science Microemulsions Electric conductivity

作者机构:

  • [ 1 ] [Mei, Yan]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
  • [ 2 ] [Nie, Zuo-Ren]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China

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ISSN: 1022-6680

年份: 2013

卷: 668

页码: 132-135

语种: 英文

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