Abstract
The possibility of using carbohydrazide as a reducing agent for plutonium in Purex process was examined. Kinetics of the reaction between Pu(IV) and carbohydrazide in HNO3 aqueous solution was studied spectrophotometrically, the rate law was established, and the rate constant and activation energy values were calculated. Plutonium stripping efficiency by carbohydrazide as defined is higher in the two-phase system: 30 % TBP with Pu(IV) nitric acid aqueous solution, in the presence of glycine. A laboratory scale counter-current experiment performed with the use of simulated WWER-1000 SNF reprocessing solutions demonstrated the possibility of carbohydrazide–glycine mixture using for plutonium concentrating back-extraction process.
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Kopyrin AA, Karelin AI, Karelin VA (2006) Technology of production and radiochemical reprocessing of nuclear fuel. ZAO Publishing House Atomenergoizdat, Moscow
Mashkin AN, Belyaev EM (2006) Investigation instabilities of U/Pu reductive separation in Purex-process during SNF VVER reprocessing at the RT-1 plant. 5th Russ. Conf. “Radiochimiya-2006”. Abstracts. Dubna, 23–27 Oct 2006. Ozersk: FGUP “PO Mayak”
Garraway J, Wilson P (1984) The technetium-catalysed oxidation of hydrazine by nitric acid. J Less-Common Met 97(2):191–203
Marchenko VI, Zhuravleva GI, Dvoeglazov KN, Savilova OA (2007) Stabilization of plutonium in tetravalent state with hydroxylamine in nitric acid solutions. Khimicheskaya Tekhnologiya (in Russ.) 7:318–323
Koltunov VS, Zhuravleva GI (1978) Kinetics of actinide reduction by hydroxylamine, III. Reduction of Pu(IV) in nitric acid solution. Radiochimiya (in Russ.) 20(1):94–101
Marchenko VI, Dvoeglazov KN, Volk VI (2009) Use of redox reagents for stabilization of Pu and Np valence forms in aqueous reprocessing of spent nuclear fuel: chemical and technological aspects. Radiochemistry 51(4):329–344
Kosyakov VN, Marchenko VI (2008) Application of electrochemical methods for decision of some problems of aqueous SNF reprocessing. Radiochimiya (in Russ.) 50(4):289–300
Marchenko VI, Polunin AK, Zacharkin BS, Rubisov VN, Dzekun EG, Starikov VM, Ufimtsev VP (1997) Industrial test on electrochemical separation of uranium and plutonium during SNF reprocessing by aqueous methods. Atomnaya Energiya (in Russ.) 32:155–157
Koltunov VS, Baranov SM (1993) Organic derivatives of hydrazine and hydroxylamine in an advanced technology of SNF reprocessing. Radiochimiya (in Russ.) 35(6):11–21
Koltunov VS (2002) Kinetics and mechanism of redox reactions of Np and Pu ions with several organic reductions. J Nucl Sci Technol 3:347–350
Alekseenko VN, Marchenko VI, Dvoeglazov KN, Volk VI, Bychkov SI, Bondin VV (2012) Oxidation of carbohydrazide by nitric acid. Radiochemistry 54(2):149–152
Volk VI, Marchenko VI, Dvoeglazov KN, Pavlyukevich EYu, Alekseenko VN, Bychkov SI, Bondin VV, D’Yachenko AS (2012) Reduction of Pu(IV) and Np(VI) by carbohydrazide in nitric acid solution. Radiochemistry 54(2):143–148
Alekseenko VN, Marchenko VI, Dvoeglazov KN, Volk VI, Alekseenko SN, Bondin VV, Bychkov SI (2012) Stripping of Pu and Tc from tributyl phosphate solutions with carbohydrazide. Radiochemistry 54(3):247–252
Konstantin Dvoeglazov, Vladimir Volk, Vladimir Alekseenko, Dmitry Zverev, Yuri Krivitskiy, Sergey Veselov, Sergey Alekseenko (2013) The use of carbohydrazide for plutonium concentration stripping in separator with inert packaging. Nuclear energy at a crossroads. International conference “GLOBAL’2013”/INL, Salt Like City, 29 sept–03 okt 2013, No 7680
Baranov SM, Koltunov VS (1991) Kinetics of the reactions of Np and Pu ions with hydrazine derivatives. VII. 2-oxyethyl hydrazine. Radiochimiya (in Russ.) 33:58–66
Baranov SM, Koltunov VS, Zharova TP (1991) Kinetics of the reactions of Np and Pu ions with hydrazine derivatives. VI. Ethyl esters of hydrazine-formic and hydrazine-acetic acids. Radiochimiya (in Russ.) 33(2):51–58
Wick OJ (ed) (1971) Plutonium. 1st edn. Atomizdat, Moscow (Transl. on Russ)
Alekseenko Vladimir Nikolaevich. (2013) Carbohydrazide: properties and application in aqueous extraction technology of irradiated nuclear fuel reprocessing. Thesis for a candidate’s degree. Moscow, Russia
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Alekseenko, V.N., Dvoeglazov, K.N., Marchenko, V.I. et al. Reduction of Pu(IV) by carbohydrazide in aqueous solutions and in two-phase systems with tributyl phosphate. J Radioanal Nucl Chem 304, 201–206 (2015). https://doi.org/10.1007/s10967-014-3882-7
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DOI: https://doi.org/10.1007/s10967-014-3882-7