摘要
Ths synergistic extraction of lanthanide ions(La 3+ ,Pr 3+ ,Nd 3+ ,Gd 3+ ,Dy 3+ ) by Bis(1′ phenyl 3′ methyl 5′ Pyrazolone 4′ yl)butanedione [1,4](H 2BPMPBD or H 2A) with Diantipyrinylmethane(DAM) form nitric acid solution has been studied.The synergistic cofficient for La 3+ was 5.36.The composition of the extracted compound was shown to be LaA·HA·DAM.The pH 1/2 values for La 3+ ,Pr 3+ ,Nd 3+ ,Gd 3+ and Dy 3+ were 4.43,4.06,3.79, 3.61 and 3.30 respectively.The extraction equilibrium constants,enthalpy change and entropy change of the reaction also have been calculated.
Ths synergistic extraction of lanthanide ions(La 3+ ,Pr 3+ ,Nd 3+ ,Gd 3+ ,Dy 3+ ) by Bis(1′ phenyl 3′ methyl 5′ Pyrazolone 4′ yl)butanedione [1,4](H 2BPMPBD or H 2A) with Diantipyrinylmethane(DAM) form nitric acid solution has been studied.The synergistic cofficient for La 3+ was 5.36.The composition of the extracted compound was shown to be LaA·HA·DAM.The pH 1/2 values for La 3+ ,Pr 3+ ,Nd 3+ ,Gd 3+ and Dy 3+ were 4.43,4.06,3.79, 3.61 and 3.30 respectively.The extraction equilibrium constants,enthalpy change and entropy change of the reaction also have been calculated.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2001年第6期683-685,共3页
Chemical Research and Application
基金
陕西省自然科学研究基金资助项目 ( 2 0 0 0H0 7)
