Extraction of Am<sup>3+</sup>and rare eaths by DEHDTP combined with TOPO, DPPHEN and TOPS

XU Qichu ZHANG Lixing YANG Yusheng

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Extraction of Am³⁺and rare eaths by DEHDTP combined with TOPO, DPPHEN and TOPS

更新时间：2021-03-12

- Extraction of Am³⁺and rare eaths by DEHDTP combined with TOPO, DPPHEN and TOPS
- NUCLEAR TECHNIQUES Issue 7, (2004)
- 作者机构：
  
  1. 西北核技术研究所
  2. 西北核技术研究所,西安,710024
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(29771026)
- DOI：
  CLC： TL941
- Published：01 July 2004
- 稿件说明：
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[1]许启初,张利兴,杨裕生.二(2-乙基己基)二硫代磷酸对镅和稀土元素协同萃取的研究[J].核技术,2004(07):547-550.

XU Qichu ZHANG Lixing YANG Yusheng. Extraction of Am³⁺and rare eaths by DEHDTP combined with TOPO, DPPHEN and TOPS[J]. Nuclear techniques, 2004, (7): 547-550.
[1]许启初,张利兴,杨裕生.二(2-乙基己基)二硫代磷酸对镅和稀土元素协同萃取的研究[J].核技术,2004(07):547-550. DOI：

XU Qichu ZHANG Lixing YANG Yusheng. Extraction of Am³⁺and rare eaths by DEHDTP combined with TOPO, DPPHEN and TOPS[J]. Nuclear techniques, 2004, (7): 547-550. DOI：

摘要

研究了二（2-乙基己基）二硫代磷酸（DEHDTP）和三辛基氧磷（TOPO）、4

7-二苯基-1

10-邻二氮菲（DPPHEN）、三辛基硫磷（TOPS）三种协萃剂对Am3+、Nd3+、Eu3+、Tm3+的协同（混合）萃取行为。TOPO和DPPHEN有很强的协萃能力

并提高了镅和稀土元素之间的分离系数

前者β（Am/Eu）=3.9

后者β（Am/Eu）=2

而TOPS几乎没有协萃作用。在常量稀土离子存在时分离系数进一步提高

TOPO的β（Am/Eu）=71

DPPHEN的β（Am/Eu）=3。

Abstract

The extraction behavior of Am3 +

Nd3 +

Eu3 + and Tm3 + from NaClO4 solution by di (2-ethylhexyl) di-thiophosphoric acid (DEHDTP) combined with trioctylphosphine oxide ( TOPO )

7-diphenyl-1

10-phenanthroline (DPPHEN) and trioctylphosphine sulfide (TOPS) was studied. While TOPO and DPPHEN give strong synergism and higher selectivity toward Am3 + ( TOPO: β(Am/Eu)= 3.9

DPPHEN: β(Am/Eu)= 2)

TOPS presents no synergism. Using DEHDTP combined with TOPO

the separation factor β(Am/Eu) increases as high as 71 in the presence of macroNd(ClO4)3.

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Extraction of Am3+and rare eaths by DEHDTP combined with TOPO, DPPHEN and TOPS

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摘要

Abstract

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Extraction of Am³⁺and rare eaths by DEHDTP combined with TOPO, DPPHEN and TOPS