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本文研究了30％TBP-煤油-1mol/L HNO_3两相混合及1mol/L HNO_3平衡过的30％TBP-煤油单有机相两种条件下TBP辐解生成DBP和MBP的规律。混合相辐照TBP降解成DBP的主要过程发生在有机相中;在剂量小于2×10~5Gy,混合相辐照有较高的DBP生成G值,而当剂量大于2×10~5Gy时,混合相与单相辐照生成DBP的G值则趋于一致;混合相辐照MBP生成浓度比单相辐照高30％-40％。混合相辐照有较高的MBP生成浓度及低剂量下有较高的DBP生成G值,很可能与混合相中含有大量水及辐照时接触到较多的氧气有关。
In this paper, the rules of TBP radiolysis of DBP and MBP under two conditions of 30% TBP-kerosene-1 mol / L HNO 3 and 1 mol / L HNO 3 -balanced 30% TBP-kerosene were studied. The main process of degradation of TBP by mixed phase irradiation into DBP occurred in the organic phase. When the dose was less than 2 × 10 ~ 5 Gy, mixed DBP produced higher DBP to generate G value, while when the dose was more than 2 × 10 ~ 5 Gy, The G value of DBP generated by mixed phase and single-phase irradiation tended to be consistent. The concentration of mixed-phase irradiated MBP was 30% -40% higher than that of single-phase irradiated. The higher MBP concentration in the mixed phase and the higher DBP in the lower dose produced the G value, which is probably related to the large amount of water in the mixed phase and the exposure to more oxygen during irradiation.