引用本文:
韩维和, 刘志宏, 梁宏斌, 魏家玉. H2BPMPBD和HAP协同萃取Ln(Ⅲ)[J]. 应用化学,
1999, 16(4): 114-116.
Citation: Han Weihe, Liu Zhihong, Liang Hongbin, Wei Jiayu. Synergistic Extraction of Lanthanide by Bis(1'-phenyl-3'-methyl-5'-pyrazolone-4'-yl) butanedione-[1,4] and 4-Hydroxyantipyrine[J]. Chinese Journal of Applied Chemistry, 1999, 16(4): 114-116.
Citation: Han Weihe, Liu Zhihong, Liang Hongbin, Wei Jiayu. Synergistic Extraction of Lanthanide by Bis(1'-phenyl-3'-methyl-5'-pyrazolone-4'-yl) butanedione-[1,4] and 4-Hydroxyantipyrine[J]. Chinese Journal of Applied Chemistry, 1999, 16(4): 114-116.
H2BPMPBD和HAP协同萃取Ln(Ⅲ)
摘要:
4-酰代双吡唑酮是一类以吡唑酮为端基的脂肪族或芳香族非环四齿β-二酮,具有很高的配位能力.近年来,已合成了一些具有明显应用前景的这类螯合剂,并对其在溶剂萃取,荧光分析等方面作了研究[1~4].但4-羟基安替吡啉(HAP)协同萃取稀土离子及其稀土配合物未见报道.本文研究了1,4-双(1'-苯基-3'-甲基-5'-氧代吡唑-4'-基)丁二酮-[1,4](H2BPMPBD,记为H2A)和HAP的氯仿溶液在硝酸介质中对部分镧系离子的协同萃取.
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关键词:
- 协同萃取
- / 镧系元素
- / 双-(苯基甲基氧代吡唑基)丁二酮
- / 4-羟基安替吡啉
English
Synergistic Extraction of Lanthanide by Bis(1'-phenyl-3'-methyl-5'-pyrazolone-4'-yl) butanedione-[1,4] and 4-Hydroxyantipyrine
Abstract:
The synergistic extraction of lanthanide ions(La3+, Pr3+, Nd3+, Gd3+, Dy3+) by mixture of title butanedione compound (H2BPMPBD or H2A) with 4-hydroxyantipyrine(HAP) from nitric acid solution has been studied. The synergistic coefficient for La3+ was 9.01. The composition of the extracted compound was shown to be LaA·HA·HAP. The pH1/2 values for La3+, Pr3+, Nd3+, Gd3+ and Dy3+ were 3.95, 3.44, 3.20, 3.06 and 2.74, respectively. The extraction equilibrium constants, enthalpy change and entropy change of the reaction also have been calculated.
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