Extraction-chromatographic properties and radiation resistance of a solid extractant based on di-2-ethylhexyl hydrogen phosphate


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Abstract

Extraction-chromatographic properties of LN-B200-S sorbent based on di-2-ethylhexyl hydrogen phosphate were studied. The equilibrium distribution coefficients of Am in the sorbent–HNO3 system, the total exchange capacity, and the capacity to breakthrough were determined. The influence of the absorbed dose on the above parameters was examined. The suggested extraction-chromatographic system was tested with a real solution of spent nuclear fuel from an RBMK-1000 reactor as applied to the recovery of the Am–Cm–Nd fraction.

About the authors

E. A. Erin

Research Institute of Atomic Reactors

Email: momotov@niiar.ru
Russian Federation, Zapadnoe sh. 9, Dimitrovgrad, Ulyanovsk oblast, 433510

V. N. Momotov

Research Institute of Atomic Reactors

Author for correspondence.
Email: momotov@niiar.ru
Russian Federation, Zapadnoe sh. 9, Dimitrovgrad, Ulyanovsk oblast, 433510

A. A. Baranov

Research Institute of Atomic Reactors

Email: momotov@niiar.ru
Russian Federation, Zapadnoe sh. 9, Dimitrovgrad, Ulyanovsk oblast, 433510

L. V. Nagaitseva

Research Institute of Atomic Reactors

Email: momotov@niiar.ru
Russian Federation, Zapadnoe sh. 9, Dimitrovgrad, Ulyanovsk oblast, 433510

Yu. S. Konovalova

Research Institute of Atomic Reactors

Email: momotov@niiar.ru
Russian Federation, Zapadnoe sh. 9, Dimitrovgrad, Ulyanovsk oblast, 433510

Yu. A. Galina

Dimitrovgrad Institute of Technology, Branch of Moscow Engineering Physics Institute

Email: momotov@niiar.ru
Russian Federation, ul. Kuibysheva 294, Dimitrovgrad, Ulyanovsk oblast, 433511

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