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.
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:
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.