| 多元协同萃取的研究 Ⅲ.AAB类三元体系对Nd(Ⅲ)的协同萃取 |
| STUDIES OF POLYNARY SYSTEM SYNERGISTIC EXTRACTIONⅡI. SYNERGISTIC EXTRATION OF NEODYMIUM (ⅡI) BY THE TERNARY SYSTEM OF AAB SPECIES |
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| 摘要: 本文对1-苯基-3-甲基-4-乙酰基吡唑啉酮-5(PMHP文中用HA表示)和2-噻吩甲酰三氟丙酮(TTA用HT表示)与甲基膦酸二异戊酯(DiAMP用B表示)和二戊基亚砜(DASO用S表示)这几种萃取剂的甲苯溶液构成的两组AAB类三元体系,从高氯酸底液中萃取轻稀土元素Nd(Ⅲ)的协萃机理进行了研究。用斜率法测定了Nd3+(≤10-4mol·1-1/NaClO4(μ=0.1)/PMHP-TTA-DiAMP-C6H5CH3体系的三元协萃物组成分别为NdAT2·B和NdAT2·B2,体系平衡常数分别为KATS1=7.0×10-2,KATS2=20.9(25℃)。同时测定了Nd3+(≤10-4mol·1-1/NaClO4,HClO4(μ=0.1)/PMHP-TTA-DASO-C6H5CH3体系协萃物分别为NdA2T·S和NdA2T·S2,测定的平衡常数平均值分别为KATS1=5.2×10-2,KATS2=2.8(25℃,平均值)。 |
| 关键词: 协同萃取 1-苯基-3-甲基-4-己酰基吡唑啉酮-5 |
| 基金项目: |
| Abstract: In this paper, two groups of the synergistic extraction of Neodymium (Ⅲ) with ternary system of AAB species are studied. The method is slop analysis. Nd3+(≤10-4mol·l-1) / NaClO4, HClO4(μ= 0.1)/PMHP-TTA-DiAMP-C6H5CH3 system, there are two adduct complexes in this system: NdAT2B and NdAT2B2, the equilibrium constants are determined to be KATS1 = 7.0×10-2 and KATS2 = 20.9(25℃). Nd3+(≤10-4mol·l-1/ NaClO4, HClO4(μ= 0.1)/ PMHP-TTA-DASO-C6H3CH3 system, there are two adduct complexes too:NdA2TS and NdA2TS2, the equilibrium constants are determined to be KATS1 =5.2×10-2(25℃), KATS2 =2.8(25℃). The results of the extraction have been discussed. |
| Keywords: synergistic extraction 1-phenyl-3-methyl-4-hexanoyl-pyrazolone-5 |
| 投稿时间：1987-08-25 |
| 摘要点击次数: 2327 |
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| 赵弘颖,陈金榜.多元协同萃取的研究 Ⅲ.AAB类三元体系对Nd(Ⅲ)的协同萃取[J].无机化学学报,1990,6(1):10-16. |
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