引用本文:
张安运, 钱博, 高改玲, 裴静, 王志纯. 双-(苯基-甲基-氧代吡唑基)乙二酮和邻菲咯啉协同萃取镧系元素[J]. 应用化学,
1996, 13(3): 90-92.
Citation: Zhang Anyun, Qian Bo, Gao Gailing, Pei Jing, Wang Zichun. Synergic Extraction of Lanthanide Ions by Bis-(1'-Phenyl-3'-methyl-5'-Pyrazol one-4'-yl)Ethanedione and Phenanthroline[J]. Chinese Journal of Applied Chemistry, 1996, 13(3): 90-92.
Citation: Zhang Anyun, Qian Bo, Gao Gailing, Pei Jing, Wang Zichun. Synergic Extraction of Lanthanide Ions by Bis-(1'-Phenyl-3'-methyl-5'-Pyrazol one-4'-yl)Ethanedione and Phenanthroline[J]. Chinese Journal of Applied Chemistry, 1996, 13(3): 90-92.
双-(苯基-甲基-氧代吡唑基)乙二酮和邻菲咯啉协同萃取镧系元素
摘要:
4-酰代双吡唑酮是一类非环四齿β-二酮螯合剂[1,2].我们合成了双-(1'-苯基-3'-甲基-5'-氧代吡唑-4'-基)乙二酮(H2BPMPED,简化为H2A),研究了H2A和邻菲咯啉(Phen)的氯仿溶液在HNO3介质中对La3+、pr3+、Nd3+和Gd3+的协同萃取.Ln2O3(Ln=La、Nd、Gd),Pr6O11均为光谱纯,用浓HNO3(GR)溶解.
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关键词:
- 双-(苯基甲基氧代吡唑基)乙二酮
- / 邻菲咯啉
- / 协同萃取
- / 镧系元素
English
Synergic Extraction of Lanthanide Ions by Bis-(1'-Phenyl-3'-methyl-5'-Pyrazol one-4'-yl)Ethanedione and Phenanthroline
Abstract:
The extraction of lanthanide ions(La3+,Pr3+,Nd3+,Gd3+)from nitric acid solution with mixtures of bis-(1'-phenyl-3'-methyl-5'-pyrazolone-4'-yl)ethanedione (H2BPMPED or H2A)and phenanthroline(phen)has been studied.The synergic extraction coefficent of neodymium is 3.56.The composition of extracted compound of neodymium is shown to be NdA·HA·phen.The pH values of half extraction of La3+,Pr3+,Nd3+,Gd3+ are 4.12,3.74,3.46,3.11 respectively.The extraction equilibrium constants enthalpy change and entropy change of the reaction have been calculated.
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