Synthesis of porous resorcinol-formaldehyde resins and study of their sorption characteristics toward Cs in highly mineralized alkaline media

Author:

Egorin Andrei12,Tokar Eduard12,Palamarchuk Marina2,Portnyagin Arseniy12,Tutov Mikhail12,Mis’ko Daria1,Kalashnikova Anastasia1,Sokolnitskaya Tatiana2,Tananaev Ivan12

Affiliation:

1. Far Eastern Federal University , Sukhanova St. 8 , Vladivostok 690000 , Russia

2. Institute of Chemistry, Far East Branch, Russian Academy of Sciences , Pr. Stoletiya Vladivostoka 159 , Vladivostok 690022 , Russia

Abstract

Abstract The present work was devoted to study of sorption parameters of resorcinol-formaldehyde resins synthesized through introduction of an inorganic filler (in amounts of 10 and 25 wt.%) with its subsequent leaching. The surface morphology and composition of ion-exchange resins have been investigated by means of the method of scanning electron microscopy. The effect of internal diffusion on the peculiarities of the ion-exchange process has been determined. It has been revealed that the ion-exchangers destruction upon a prolonged contact with highly alkaline solutions is followed by the decrease of internal diffusion coefficients and selectivity toward Cs-137 micro-quantities. The sorption properties of resins under dynamic conditions at high solution feeding rates have been studied. A sample with the highest efficiency of Cs-137 removal from highly mineralized solutions has been identified.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry

Reference23 articles.

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2. Logunov, M. V., Karpov, V. I., Tananaev, I. G.: Stabilization of thermal-physical conditions of survey of some storage tanks for highly active pulps at FSUE PA “Mayak”. Voprosy Radiatsionnoy Bezopasnosti. 4, 18 (2011) [In Russian].

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