摘要
The synergistic exrtraction of lanthanide ions(La3+,Pr3+,Nd3+ and Gd3+)by bis （1′-phenyl-3′-methyl-5′-pyrazolone-4′-yl）phthaldione（H2BPMOPP or H2A）with 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone（PMBP）from nitric acid solution was studied.The synergistic coefficient for La3+ is 5.21.The composition of the extracted compound was shown to be LaA·HA·PMBP.The pH1/2values for La3+,Pr3+,Nd3+,Gd3+ and Dy3+ are 4.16,3.79,3.56,3.29 and 2.99,respectively.The extraction equilibrium constants,enthalpy change and entropy change of the reaction were also calculated.
The synergistic exrtraction of lanthanide ions(La^(3+),Pr^(3+),Nd^(3+) and Gd^(3+))by bis (1′-phenyl-3′-methyl-5′-pyrazolone-4′-yl)phthaldione(H_2BPMOPP or H_2A)with 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone(PMBP)from nitric acid solution was studied.The synergistic coefficient for La^(3+) is 5.21.The composition of the extracted compound was shown to be LaA·HA·PMBP.The pH_(1/2)values for La^(3+),Pr^(3+),Nd^(3+),Gd^(3+) and Dy^(3+) are 4.16,3.79,3.56,3.29 and 2.99,respectively.The extraction equilibrium constants,enthalpy change and entropy change of the reaction were also calculated.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2004年第6期814-816,共3页
Chemical Research and Application
基金
陕西省自然科学研究基金资助项目(200H07)
