Effect of TBP on extraction of uranium(VI) with N,N-dibutyloctylaminde

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Effect of TBP on extraction of uranium(VI) with N,N-dibutyloctylaminde

更新时间：2021-03-12

- Effect of TBP on extraction of uranium(VI) with N,N-dibutyloctylaminde
- NUCLEAR TECHNIQUES Issue 3, (1999)
- 作者机构：
  
  1. 中国科学院上海原子核研究所!上海２０１８００
  2. 山东建材学院!济南２５００２２
  3. 中国科学院上海原子核研究所!上海２０１８００山东建材学院!济南２５００２２
- 作者简介：
- 基金信息：
- DOI：
  CLC： TL212.32
- Published：01 March 1999
- 稿件说明：
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[1]孙国新,韩景田,包伯荣,崔玉.TBP对N,N-二丁基辛酰胺萃取铀的影响[J].核技术,1999(03):183-186.

Effect of TBP on extraction of uranium(VI) with N,N-dibutyloctylaminde[J]. Nuclear techniques, 1999, (3).
[1]孙国新,韩景田,包伯荣,崔玉.TBP对N,N-二丁基辛酰胺萃取铀的影响[J].核技术,1999(03):183-186. DOI：

Effect of TBP on extraction of uranium(VI) with N,N-dibutyloctylaminde[J]. Nuclear techniques, 1999, (3). DOI：

摘要

研究了Ｎ，Ｎ－二丁基辛酰胺（ＤＢＯＡ）从硝酸介质中萃取铀的机理。考察了水相酸度、盐析剂ＬｉＮＯ３浓度以及萃取剂浓度对萃取分配比的影响，结合红外光谱分析了萃合物结构。ＴＢＰ对ＤＢＯＡ萃取铀的影响比较复杂，在低ＴＢＰ浓度下，两种萃取剂具有协同效应，但随着ＴＢＰ浓度的增大出现反协同效应。红外光谱表明两种中性萃取剂混合后分子间没有明显的相互作用，反协同效应可能是ＴＢＰ改变了有机溶液的极性所致。利用斜率法确定了协萃络合物的组成。

Abstract

The extraction mechanism of uranium（VI） with N

N- dibutyloctylamide（DBOA） in kerosene has been studied.The influences of concentrations of aqueous nitric acid

salting-out agent LiNO

and extractant on the extraction distribution ratios are investigated.The structure of the extracted complex is analyzed by the aid of IR spectra. While there exists synergism for the extraction of uranium（VI） with TBP and DBOA at lower TBP concentration

the antagonistic effect occurs at higher TBP concentration.However

the IR spectra indicate that there is no interaction between these two extractants.The complicated effect caused by TBP may be due to the change in polarity of organic phase with the increase of TBP concentration.The stoichiometry of the complex formed with TBP and DBOA was determined by the slope method.

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