The extraction behavior of N, N, N’, N’-tetraisobutul-3 -oxy-dioctlylglutaramide to Uranium (VI) and Thorium (IV ) fromnitric acid solution was studied by using n-octnol and kerosene as diluent . This extractant can...The extraction behavior of N, N, N’, N’-tetraisobutul-3 -oxy-dioctlylglutaramide to Uranium (VI) and Thorium (IV ) fromnitric acid solution was studied by using n-octnol and kerosene as diluent . This extractant can not only effectively extract threevalence lanthanide and actinide, but also extract four-and six-valence actinide such as Uranium(VI) and Thorium (IV). Theresults show that the distributions of U (VI) and Th (IV) increase with the concentrations of nitric acid, Th Du . Theextraction mechanism of U(VI) and TI0V)can be inferred to be the neutral compex extraction, the structural formulas of theextractives are UO2(NO3)2. L and Th(NO3)4. L, lgKexU(VI)=(VI).455±0.09, IgK’exTh(IV)=1.66±0.04 respectively. Thisextractant can be easily synthesized and is insoluble in water, stable toward radiation nontoxic. The extracted U (VI) and Th (IV)can be effectively stripped. It can be completely decomposed without any renmants. This is good for disposal of radioactivewaste.展开更多
：The crystalline layered and amorphous samples of Zr(HPO4)[O3PCH2N(CH2CO2H)2]· nH2O(n=1,2)(c-or a-ZPPMIDA) and Zr(HPO4)[O3PCH2N(CH2CH2)2O]· nH2O)(n=1,2) (c- or a-ZPMMPA) were prepared with zirconium oxychlo...：The crystalline layered and amorphous samples of Zr(HPO4)[O3PCH2N(CH2CO2H)2]· nH2O(n=1,2)(c-or a-ZPPMIDA) and Zr(HPO4)[O3PCH2N(CH2CH2)2O]· nH2O)(n=1,2) (c- or a-ZPMMPA) were prepared with zirconium oxychloride, sodium dihydrogen phosphate and H2O3PCH2N(CH2CH2)2O(MMPA) or H2O3PCH2N(CH2CO2H)2(PMIDA) in the presence or absence of hydrofluoric acid for the first time.The samples were comparatively characterized by XRD,IR, TG-DTA and elemental analysis. The interlayer spacings of c-ZPPMIDA and c-ZPMMPA were also measured and calculated. XRD results showed that interlayer spacings of c- ZPMMPA and c-ZPPMIDA were 16.055? and 15.384? respectively. The similar structure Zr[(O3PCH2)2NCH2 CO2H]· H2O(ZGDMP) were used to analytically compare with c-ZPMMPA and c-ZPPMIDA. The influences of distribution and rigidity of organic groups on the interlayer spacing were discussed.展开更多
文摘The extraction behavior of N, N, N’, N’-tetraisobutul-3 -oxy-dioctlylglutaramide to Uranium (VI) and Thorium (IV ) fromnitric acid solution was studied by using n-octnol and kerosene as diluent . This extractant can not only effectively extract threevalence lanthanide and actinide, but also extract four-and six-valence actinide such as Uranium(VI) and Thorium (IV). Theresults show that the distributions of U (VI) and Th (IV) increase with the concentrations of nitric acid, Th Du . Theextraction mechanism of U(VI) and TI0V)can be inferred to be the neutral compex extraction, the structural formulas of theextractives are UO2(NO3)2. L and Th(NO3)4. L, lgKexU(VI)=(VI).455±0.09, IgK’exTh(IV)=1.66±0.04 respectively. Thisextractant can be easily synthesized and is insoluble in water, stable toward radiation nontoxic. The extracted U (VI) and Th (IV)can be effectively stripped. It can be completely decomposed without any renmants. This is good for disposal of radioactivewaste.
文摘：The crystalline layered and amorphous samples of Zr(HPO4)[O3PCH2N(CH2CO2H)2]· nH2O(n=1,2)(c-or a-ZPPMIDA) and Zr(HPO4)[O3PCH2N(CH2CH2)2O]· nH2O)(n=1,2) (c- or a-ZPMMPA) were prepared with zirconium oxychloride, sodium dihydrogen phosphate and H2O3PCH2N(CH2CH2)2O(MMPA) or H2O3PCH2N(CH2CO2H)2(PMIDA) in the presence or absence of hydrofluoric acid for the first time.The samples were comparatively characterized by XRD,IR, TG-DTA and elemental analysis. The interlayer spacings of c-ZPPMIDA and c-ZPMMPA were also measured and calculated. XRD results showed that interlayer spacings of c- ZPMMPA and c-ZPPMIDA were 16.055? and 15.384? respectively. The similar structure Zr[(O3PCH2)2NCH2 CO2H]· H2O(ZGDMP) were used to analytically compare with c-ZPMMPA and c-ZPPMIDA. The influences of distribution and rigidity of organic groups on the interlayer spacing were discussed.
