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REMOVAL OF H_2C_2O_4 FORM TRPO PHASE WITH HNO_3 WASHING METHOD

Yi Guo

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Abstract

The removal conditions of H 2C 2O 4 from TRPO phase with HNO 3 washing are studied. When TRPO phase is washed after Np and Pu stripping using 5.5 mol/L HNO 3 through 2 stages, all H 2C 2O 4 in TRPO phase is removed, The haze in TRPO phase doesnt occur. Then uranium in TRPO phase is stripped using (NH 4) 2CO 3 solution, the white precipitate doesnt produce in aqueous solution. TRPO process for removal of actinide elements can be operated normally.

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What this paper is about

The removal conditions of H 2C 2O 4 from TRPO phase with HNO 3 washing are studied. When TRPO phase is washed after Np and Pu stripping using 5.5 mol/L HNO 3 through 2 stages, all H 2C 2O 4 in TRPO phase is removed, The haze in TRPO phase doesnt occur. Then uranium in TRPO phase is stripped using (NH 4) 2CO 3 solution, the white precipitate doesnt produce in aqueous solution. TRPO process for removal of actinide elements can be operated normally.

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Available abstract

The removal conditions of H 2C 2O 4 from TRPO phase with HNO 3 washing are studied. When TRPO phase is washed after Np and Pu stripping using 5.5 mol/L HNO 3 through 2 stages, all H 2C 2O 4 in TRPO phase is removed, The haze in TRPO phase doesnt occur. Then uranium in TRPO phase is stripped using (NH 4) 2CO 3 solution, the white precipitate doesnt produce in aqueous solution. TRPO process for removal of actinide elements can be operated normally.

Key concepts: Chemistry, Aqueous solution, Phase (matter), Stripping (fiber), Actinide, Uranium, Nuclear chemistry, Organic chemistry

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