引用本文:
叶伟贞, 许庆仁, 沈定璋. 高位阻有机磷萃取剂的研究Ⅲ.叔丁基膦酸单烷基酯的合成及其结构与萃取镱、镥性能的关系[J]. 应用化学,
1992, 9(5): 1-5.
Citation: Ye Weizhen, Xu Qingren, Shen Dingzhang. STUDIES ON HIGHLY STERICALLY HINDERED ORGANOPHOSPHORUS EXTRACTANTS Ⅲ. SYNTHESIS OF MONOALKYL t-BUTYLPHOSPHONATES AND RELATIONSHIP BETWEEN THEIR STRUCTURES AND EXTRACTION BEHAVIOUR ON Yb(Ⅲ), Lu(Ⅲ)[J]. Chinese Journal of Applied Chemistry, 1992, 9(5): 1-5.
Citation: Ye Weizhen, Xu Qingren, Shen Dingzhang. STUDIES ON HIGHLY STERICALLY HINDERED ORGANOPHOSPHORUS EXTRACTANTS Ⅲ. SYNTHESIS OF MONOALKYL t-BUTYLPHOSPHONATES AND RELATIONSHIP BETWEEN THEIR STRUCTURES AND EXTRACTION BEHAVIOUR ON Yb(Ⅲ), Lu(Ⅲ)[J]. Chinese Journal of Applied Chemistry, 1992, 9(5): 1-5.
高位阻有机磷萃取剂的研究Ⅲ.叔丁基膦酸单烷基酯的合成及其结构与萃取镱、镥性能的关系
English
STUDIES ON HIGHLY STERICALLY HINDERED ORGANOPHOSPHORUS EXTRACTANTS Ⅲ. SYNTHESIS OF MONOALKYL t-BUTYLPHOSPHONATES AND RELATIONSHIP BETWEEN THEIR STRUCTURES AND EXTRACTION BEHAVIOUR ON Yb(Ⅲ), Lu(Ⅲ)
Abstract:
A new series of monoalkyl t-butylphosphonates (MAtBP) with highly steric hindrance, t-C4H9P(O)(OR)OH, where R represents n-C5H17,-CH2CH(C2H5)C4H9,-CH(CH3)C6H13,-CH2CH2CH(CH3)CH2C(CH3)3 and n-C12H25, respectively, were synthesized and the relationship between their structure and extraction behaviour on Yb(Ⅲ), Lu(Ⅲ)Was investigated. Their extraction ability markedly decreases with the increase of the steric hindrance from ester alkyl group. There is an approximate linear correlation between pH1/2 values and Charton steric parameter v of the ester alkyl groups. The stripping behaviour of Yb, Lu with MAtBP is superior to that with mono-2-ethylhexyl 2-ethylhexylphosphonate (P-507).
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Key words:
- monoalkyl t-butylphosphonate
- / extraction
- / Yb(Ⅲ)
- / Lu(Ⅲ)
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