Effects of γ irradiation on extraction of Fe(Ⅲ) by trialkylphosphine oxide

XIN Renxuan  CHEN Jiyang  LIANG Junfu  SONG Chongli

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Effects of γ irradiation on extraction of Fe(Ⅲ) by trialkylphosphine oxide

更新时间：2021-03-12

- Effects of γ irradiation on extraction of Fe(Ⅲ) by trialkylphosphine oxide
- NUCLEAR TECHNIQUES Issue 12, (2002)
- 作者机构：
  
  1. 清华大学核能技术研究院
  2. 清华大学核能技术研究院,北京,100084
- 作者简介：
- 基金信息：
  
  国家“九五”科技攻关项目子课题 (96 -A18- 0 2 - 0 2 )
- DOI：
  CLC： O658
- Published：01 December 2002
- 稿件说明：
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[1]辛仁轩,陈积扬,梁俊福,宋崇立.γ辐照对三烷基氧化膦萃取Fe(Ⅲ)的影响[J].核技术,2002(12):1025-1028.

XIN Renxuan CHEN Jiyang LIANG Junfu SONG Chongli. Effects of γ irradiation on extraction of Fe(Ⅲ) by trialkylphosphine oxide[J]. Nuclear techniques, 2002, (12): 1025-1028.
[1]辛仁轩,陈积扬,梁俊福,宋崇立.γ辐照对三烷基氧化膦萃取Fe(Ⅲ)的影响[J].核技术,2002(12):1025-1028. DOI：

XIN Renxuan CHEN Jiyang LIANG Junfu SONG Chongli. Effects of γ irradiation on extraction of Fe(Ⅲ) by trialkylphosphine oxide[J]. Nuclear techniques, 2002, (12): 1025-1028. DOI：

摘要

三烷基氧化膦具有优越的锕系元素萃取性能和较高的辐照稳定性。 30 %TRPO -煤油已被用作高放废液（HAW ）处理的萃取剂

HAW中常含有大量的Fe（Ⅲ ）。研究了辐照 30 %TRPO-煤油溶剂的萃取和反萃取性能。萃取剂吸收剂量为 0 .1× 10 5— 10 .0× 10 5Gy。研究结果表明

在吸收剂量 0 .1× 10 5— 1.0× 10 5Gy时γ辐照对萃取分配比没有影响

当吸收剂量达到 3.0×10 5Gy时Fe（Ⅲ ）的萃取分配比显著增加。试验表明用 0 .6mol/L草酸溶液洗涤辐照有机相可以消除辐照的影响

Abstract

The trialkylphosphine oxide (TRPO) presents excellent extraction abilities for the actinides elements and it has a high radiation stability. The 30% TRPO-kerosene was used as extractant for high level active liquid waste (HAW) treatment. Large percentage of Fe(Ⅲ) is of ten included in HAW. In this paper

the effects of iron on extraction and back-extraction have been studied. A number of experimental solutions containing 30% TRPO-kerosene were prepared. The total absorptive dose of organic phase was in the range of 0.1×10 5-10.0×10 5Gy. The results show that the γ radiation had no effect on the distribution ratio when absorptive dose was in the range of 0.1×10 5-1.0×10 5Gy. However

when total dose reached more than 3.0×10 5Gy

the distribution ratio of Fe(Ⅲ) increased remarkably. The study also suggests

that radioactive effect may be eliminated by back-extraction with 0.6mol/L oxalic acid solution.

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