CAJ | 학술논문

在 MATLAB软件平台上,利用文献报道的610组 U(Ⅳ)分配比数据分别对美国、印度及日本提出的3种不同的U(Ⅳ)分配比模型函数进行了验证,验证结果表明：3种模型计算值与实验值的相对偏差均至少在20%以上,其中以美国研究者提出的 U(Ⅳ)分配比模型计算效果最佳,但仍无法直接用于模拟计算 U(Ⅳ)的分配比。因此,为得到相对偏差较低的U(Ⅳ)分配比模型,以美国研究者提出的模型为基础进行修正,修正后的模型为D(U(Ⅳ))=K*(U(Ⅳ))c2(fTBP),其中K*(U(Ⅳ))=(1.4/(30×c(U(Ⅳ))+1))×K*(U(Ⅵ))×(0.0541+0.000658×c2(NO-3)),该模型使用范围为：平衡水相硝酸浓度为0.4~4.0 mol/L,U(Ⅳ)质量浓度为5~50 g/L,U(Ⅵ)质量浓度为15~150 g/L,Pu(Ⅲ)质量浓度为0.4~36.3 g/L,肼浓度为7×10-4~2 mol/L,相对偏差在±15%以内。
재 MATLAB연건평태상,이용문헌보도적610조 U(Ⅳ)분배비수거분별대미국、인도급일본제출적3충불동적U(Ⅳ)분배비모형함수진행료험증,험증결과표명：3충모형계산치여실험치적상대편차균지소재20%이상,기중이미국연구자제출적 U(Ⅳ)분배비모형계산효과최가,단잉무법직접용우모의계산 U(Ⅳ)적분배비。인차,위득도상대편차교저적U(Ⅳ)분배비모형,이미국연구자제출적모형위기출진행수정,수정후적모형위D(U(Ⅳ))=K*(U(Ⅳ))c2(fTBP),기중K*(U(Ⅳ))=(1.4/(30×c(U(Ⅳ))+1))×K*(U(Ⅵ))×(0.0541+0.000658×c2(NO-3)),해모형사용범위위：평형수상초산농도위0.4~4.0 mol/L,U(Ⅳ)질량농도위5~50 g/L,U(Ⅵ)질량농도위15~150 g/L,Pu(Ⅲ)질량농도위0.4~36.3 g/L,정농도위7×10-4~2 mol/L,상대편차재±15%이내。
A total of 610 data are used to testify the realibility of U(Ⅳ)distribution models which were established by different researchers from United States,India and Japan with the Matlab software.The results show that the model established by United States researcher is the best one among the three models,but the relative deviation is still more than 20%,and the model can not be used to calculate the U(Ⅳ)distribution.Thus,the model established by United States researcher is chose to be modified,the modified model is D (U (Ⅳ))=K*(U(Ⅳ))c2(fTBP),and K*(U(Ⅳ))=(1.4/(30×c(U(Ⅳ))+1))×K*(U(Ⅵ))× (0.054 1+0.000 658×c2 (NO-3 )).The modified model can be used in the following equilibrium concentration ranges for the aqueous phase:HNO3 0.4-4.0 mol/L,U(Ⅳ)5-50 g/L,U(Ⅵ) 15-150 g/L,Pu(Ⅲ)0.4-36.3 g/L,hydrazine 7×10-4-2 mol/L.The relative deviation of the modified model is less than ±1 5%.