| 多元协同萃取的研究(Ⅱ)——ABB类三元体系对Nd(Ⅲ)的协同萃取 |
| |
| 引用本文： | 赵弘颖,陈金榜,等.多元协同萃取的研究(Ⅱ)——ABB类三元体系对Nd(Ⅲ)的协同萃取[J].北京林业大学学报,1989,11(2):86-91. |
| |
| 作者姓名： | 赵弘颖 陈金榜 |
| |
| 作者单位： | [1]基础部 [2]北京大学技术物理系 |
| |
| 摘 要： | 本文用单浓度递变斜率法研究了两组酸性螫合—中性络合—中性络合三元体系对Nd(Ⅲ)的协同萃取机理,分别测定了Nd~(3+)(≤10~(-4)M)/NaClO_4,HClO_4(μ=0.1)/PMHP-D;AMP-DASO-C_6H_5CH_3体系的协萃物组成为NdA_3BS,协萃平衡常数K_(ABS)=0.50。用同样的方法,测定了Nd~(3+)(≤10~(-4)M)/NaClO_4,HClO_4(μ=0.1)/TTA-D;AMP-DASO-C_6H_5CH_3体系的协萃物组成为NdT_3BS,协萃平衡常数为K_(TBS)=2.4,并对结果进行了比较和讨论,结果表明:配位体的空间位阻效应对同类协萃物的稳定性影响很大,也是导致K_(TBS)>K_(ABS)结果的主要原因。
|
| 关 键 词： | 协同萃取 1-苯基-3-甲基-4-已酰基吡唑啉酮-5 |
Studies of Polynary System Synergistic Extraction (Ⅱ) Synergistic Extraction of Neodymium (Ⅲ) by the Ternary System of ABB Species |
| |
| Zhao Hongying.Studies of Polynary System Synergistic Extraction (Ⅱ) Synergistic Extraction of Neodymium (Ⅲ) by the Ternary System of ABB Species[J].Journal of Beijing Forestry University,1989,11(2):86-91. |
| |
| Authors: | Zhao Hongying |
| |
| Abstract: | The synergistic extractions of neodymium(Ⅲ) from sodium pe-rchlorate solution with two ternary systems of ABB species were studied by slop analysis. Ternary synergistic adduct complexes and equilibrium constants were determined to be NdA3BS, KABS=0.50 (25℃) (in Nd3+(≤10-4 M)/NaClO4, HClO4 (μ= 0. 1) /PMHP-D1AMP-DASO-C6H5CH3 system) and NdT3BS,KTBS=2.4 (25℃) (in Nd3+(≤0-4M)/NaClO, HClO4 (μ=0.1)/ TTA-D1AMP-DASO-C6H5CH3 system). The results of two ternary synergistic systems were compared and discussed. |
| |
| Keywords: | Synergistic extraction 1-phenyl-3-methyl-4-hexanoyl-pyraz-olone-5 |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
