Competitive complexation of solid lanthanide nitrates with tri-n-butyl phosphate in n-hexane

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• 作者：Zhuangfei Wang ; Tingting Liu ; Xihong He…
• 关键词：Lanthanide nitrate ; n ; Hexane ; Separation factor ; Competitive complexation
• 刊名：Journal of Radioanalytical and Nuclear Chemistry
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：311
• 期：1
• 页码：483-489
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Nuclear Chemistry; Physical Chemistry; Nuclear Physics, Heavy Ions, Hadrons; Diagnostic Radiology; Inorganic Chemistry;
• 出版者：Springer Netherlands
• ISSN：1588-2780
• 卷排序：311

文摘

Competitive complexation of solid lanthanide nitrates with tri-n-butyl phosphate (TBP) in n-hexane was studied by spectroscopic methods. For light lanthanides binary system (Nd–Pr), they complexed with TBP equally, leading to a low separation factor. However, distinct different behavior was observed for light-heavy lanthanides binary system (Nd–Ho). Heavy lanthanide Ho(NO₃)₃·6H₂O complexed preferentially with TBP, resulting in a much higher separation factor. The separation factor was low during H₂O stripping of lanthanides from their complexes in n-hexane, even thought, the tendency of stripping more light lanthanide was also observed.