Separation of High Purity Terbium Using Extraction Chromatography

Lee, Kwang-Pill; 이광필; Park, Myoung-Jin; 박명진; Park, Keung-Shik; 박긍식; Lee, Hueng-Lark; 이흥락; Piao, Zhexiu; 박철수

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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.12, No.5

PubReader Citation

Separation of High Purity Terbium Using Extraction Chromatography

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

1999, v.12 no.5, pp.370-374

Lee, Kwang-Pill
Park, Myoung-Jin
Park, Keung-Shik
Lee, Hueng-Lark
Piao, Zhexiu

Lee, K., Park, M., Park, K., Lee, H., & Piao, Z. (1999). Separation of High Purity Terbium Using Extraction Chromatography. , 12(5), 370-374.

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Abstract

Extraction chromatography was used to scarch optimum separation conditions of terbium. Stationary phase was 2-ethylhexyl-2-ethylhexyl phosphonic acid(HEH[EHP])levextrel (-100~+150 mesh), column size was ${\Phi}20{\times}530mm$ and kept constantly temperature at $50^{\circ}C$, adsorption flow rate of $0.2mL/cm^2{\cdot}min$, elution flow rate of $1.0mL/cm^2{\cdot}min$, column diameter to packing height of 1:15. But to search optimum separation conditions of terbium, it changed the eluent acidity, the loading weight of sample. the composition of sample. In conclusion, acidity was 0.6 N HCl, loading weight of sample was about 5% and composition of sample was $Gd_2O_3(20%)+Tb_4O_7(60%)+Dy_2O_3(20%)$. Moreover purity of separated terbium by ICP-AES analysis was 99.98% in yield of 99.99%.