Authors:
A. Zhang Institute of Research and Innovation (IRI) Nuclear Chemistry and Chemical Engineering Center 1201 Takada 277-0861 Kashiwa, Chiba-ken Japan

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Y. Wei Institute of Research and Innovation (IRI) Nuclear Chemistry and Chemical Engineering Center 1201 Takada 277-0861 Kashiwa, Chiba-ken Japan

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M. Kumagai Institute of Research and Innovation (IRI) Nuclear Chemistry and Chemical Engineering Center 1201 Takada 277-0861 Kashiwa, Chiba-ken Japan

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T. Koyama Japan Nuclear Cycle Development Institute (JNC) Tokai Works 319-1194 Tokai-mura, Naka-gun, Ibaraki-ken Japan

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Abstract  

A new type of silica-based chelating extraction resin, DtBuCH18C6/SiO2-P, was prepared by impregnating a crown ether derivative, 4,4,(5)-di(tert-butylcyclohexano)-18-crown-6 (DtBuCH18C6), into the porous silica/polymer composite particles (SiO2-P). The adsorption of Sr(II) and some other fission product elements was investigated by a batch adsorption experiment in HNO3 medium. It was found that Sr(II) exhibits a strong adsorption onto the extraction resin, while the other fission product elements show almost no or only weak adsorption. The adsorption kinetics of Sr(II) was explained by assuming as the rate-controlling step the complex-formation reaction between Sr(II) and DtBuCH18C6 contained in the extraction resin. The rate equation of Sr(II) adsorption was determined as:-d[Sr(II)]/dt = k[Sr(II)][DtBuCH18C6][NO3]0.5.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)