物理化学学报 >> 1986, Vol. 2 >> Issue (06): 499-504.doi: 10.3866/PKU.WHXB19860604

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N,N-二正丙基丁酰胺对辐照磷酸三丁酯的保护效应

伊敏; 王莉娅; 王文清   

  1. 北京大学 技术物理系
  • 收稿日期:1985-08-30 修回日期:1985-12-26 发布日期:1986-12-15

THE PROTECTIVE EFFECT OF N,N-DIPROPYL BUTYRAMIDE ON IRRADIATED TRIBUTYL PHOSPHATE

Yi Min; Wang Liya; Wang Wenqing   

  1. Department of Technical Physics; Peking University
  • Received:1985-08-30 Revised:1985-12-26 Published:1986-12-15

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摘要： 本文研究N,N-二正丙基丁酰胺(DPBA)对辐照磷酸三丁酯(TBP)的保护作用, 实验发现在~(60)Coγ辐照下, 它对TBP~*。具有双重能量转移效应, DPBA本身辐解, 属于“自我牺牲”机理。应用稳态原理得出辐解TBP的两种激发态分子的能量抑制方程。

Abstract: N,N-dialkyl substituted alkyl amide has been shown as the extractant for the extraction and separation of actinides in a Purex-type flowsheet since its synthetizing is cheap enough.It exhibits a similar behavior as tri-n-butyl phosphate (TBP) but it has better decontamination of uramium from some fission products, better uranium-thorium separation, higher stability and undergoes to lessdeterious degradation products than TBP~[1-3].
The kinetics and mechanism of energy transfer in TBP-DPBA system have been studied and two-fold protective effect on excited TBP has been found. By using the principle of steady state, the energy transfer equation of the first kind of excited TBP is derived as follows:
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