| 1,4-双(1＇-苯基-3＇-甲基-5＇-氧代吡唑-4＇-基)丁二酮-[1,4]与二安替吡啉甲烷协同萃取Ln(III)的性能和机理 |
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| 引用本文： | 张安运,杨子超.1,4-双(1＇-苯基-3＇-甲基-5＇-氧代吡唑-4＇-基)丁二酮-[1,4]与二安替吡啉甲烷协同萃取Ln(III)的性能和机理[J].过程工程学报,2001,1(3). |
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| 作者姓名： | 张安运 杨子超 |
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| 作者单位： | 陕西师范大学化学系 |
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| 摘 要： | 在硝酸介质中研究了1,4-双(1'-苯基-3'-甲基-5'-氧代吡唑-4'-基)丁二酮-1,4]与二安替吡啉甲烷的氯仿溶液协同萃取Ln3+(Ln=La, Pr, Nd, Sm, Gd和Dy)的性能. 通过考察萃取剂浓度、溶液酸度和温度等因素对Ln(III)萃取平衡的影响，确定了萃取机理和萃合物组成，求得了萃取反应平衡常数Ks.e.和有关热力学参数.
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| 关 键 词： | 镧系元素 1，4-双(1'-苯基-3'-甲基-5'-氧代吡唑-4'-基)丁二酮-[1，4] 二安替吡啉甲烷 协同萃取 |
Synergistic Extraction of Lanthanide Ions with 1,4-Bis (1＇-Pheny1-3＇-Methyl- 5＇-Pyrazolone-4＇-yl)-Butanedione-[1,4] and Diantipyryl Methane |
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| ZHANG An-yun,YANG Zi-chao.Synergistic Extraction of Lanthanide Ions with 1,4-Bis (1＇-Pheny1-3＇-Methyl- 5＇-Pyrazolone-4＇-yl)-Butanedione-[1,4] and Diantipyryl Methane[J].Chinese Journal of Process Engineering,2001,1(3). |
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| Authors: | ZHANG An-yun YANG Zi-chao |
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| Abstract: | The synergistic extraction of lanthanide ions Ln3+ (Ln=La, Pr, Nd, Sm, Gd, Y and Dy) in nitric acid solution at (30(1)(C with 1,4-bis(1'-phenyl-3'-methyl-5'-pyrazolone-4'-yl)-butanedione-1,4](H2A) and dian- tipyryl methane(DAM) has been studied. The results show that there is a notable synergistic effect on La3+ for the H2A+DAM system, and the synergistic extraction coefficient of La3+ is calculated to be 6.1. By investigating the influence of concentrations of H2A and DAM on the extraction of La3+, the composition of extracted compound is determined as LaA.HA.DAM. The pH1/2 values of La3+, Pr3+, Nd3+, Sm3+, Gd3+ and Dy3+ are 4.15, 3.64, 3.53, 3.37, 3.23 and 3.14, respectively. Meanwhile, the extraction equilibrium constants and thermodynamic parameters are also calculated. |
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| Keywords: | lanthanide ion synergistic extraction 1 4-bis(1'-phenyl-3'-methyl-5'-pyrazolone-4'-yl)-butanedione -[1 4] diantipyryl methane |
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