Enrichment of Lithium Isotope by Novel Ion Exchanger Containing Azacrown Ether as Anchor Group

Kim, Dong Won; 김동원; Lee, Nam-Soo; 이남수; Jeong, Young Kyu; 정영규; Ryu, Haiil; 류해일; Kim, Chang Suk; 김창석; Kim, Bong Gyun; 김봉균

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P-ISSN1225-0163
E-ISSN2288-8985
SCOPUS, ESCI, KCI

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P-ISSN 1225-0163
E-ISSN 2288-8985

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Vol.11, No.4

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Enrichment of Lithium Isotope by Novel Ion Exchanger Containing Azacrown Ether as Anchor Group

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985

1998, v.11 no.4, pp.231-234

Kim, Dong Won
Lee, Nam-Soo
Jeong, Young Kyu
Ryu, Haiil
Kim, Chang Suk
Kim, Bong Gyun

Kim, D. W., Lee, N., Jeong, Y. K., Ryu, H., Kim, C. S., & Kim, B. G. (1998). Enrichment of Lithium Isotope by Novel Ion Exchanger Containing Azacrown Ether as Anchor Group. , 11(4), 231-234.

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Abstract

Separation factor for $^6Li$ and $^7Li$ has been determined using ion exchange resin having 1,7,13-trioxa-4,10,16-triazacyclooctadecane ($N_3O_3$) as an anchor group. The ion exchange capacity of the $N_3O_3$ ion exchanger was 2.0 meq/g dry resin. The lighter isotope, $^6Li$, is concentrated in the fluid phase, while the heavier isotope, $^7Li$, is enriched in the resin phase. By column chromatography [0.3 cm(I.D)${\times}$30 cm (height)] using 3.0 M ammonium chloride solution as an eluent, single separation factor, ${\alpha}$, 1.018, i.e. $(^7Li/^6Li)_{resin}/(^7Li/^6Li)_{fluid}$ was obtained by the Glueckauf theory from the elution curve and isotope ratios.