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Extracting of uranium(VI)from nitric acid by tetrabutylurea

Zhu Liming

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Abstract

N,N,N',N'-tetra-n-butylurea was synthesized by the means of “nonphosgene”.The extraction properties of dioxouranium(Ⅱ)from nitric acid solution by N,N,N',N'-tetra-n-butylurea(TBU)were studied.The extraction laws of dioxouranium(Ⅱ)with TBU were similar to that with tributyl-phosphate(TBP).Its extracting ability was bitter lower than that of TBP.In the all experiment condition,the third phase doesn't appear.Its solvation number to dioxouranium was 2.

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What this paper is about

N,N,N',N'-tetra-n-butylurea was synthesized by the means of “nonphosgene”.The extraction properties of dioxouranium(Ⅱ)from nitric acid solution by N,N,N',N'-tetra-n-butylurea(TBU)were studied.The extraction laws of dioxouranium(Ⅱ)with TBU were similar to that with tributyl-phosphate(TBP).Its extracting ability was bitter lower than that of TBP.In the all experiment condition,the third phase doesn't appear.Its solvation number to dioxouranium was 2.

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Available abstract

N,N,N',N'-tetra-n-butylurea was synthesized by the means of “nonphosgene”.The extraction properties of dioxouranium(Ⅱ)from nitric acid solution by N,N,N',N'-tetra-n-butylurea(TBU)were studied.The extraction laws of dioxouranium(Ⅱ)with TBU were similar to that with tributyl-phosphate(TBP).Its extracting ability was bitter lower than that of TBP.In the all experiment condition,the third phase doesn't appear.Its solvation number to dioxouranium was 2.

Key concepts: Nitric acid, Uranium, Chemistry, Extraction (chemistry), Tributyl phosphate, Solvation, Tetra, Third phase

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