Study on the separation of Co2+ from Zn2+, Cd2+ by anion-exchange chromatography
Tóm tắt
The separation of Co2+ from Zn2+, Cd2+ by anion-exchange chromatography was discussed. The chromatographic column containing anion resin 201 × 7 which was saturated with a solution of ammonium chloride. The effects of the eluant acidity and eluant composition on the separation were investigated. The results indicate that this anion-exchange chromatography is suitable to the separation of Co2+ from Zn2+, Cd2+, and the condition of separation is simple and convenient. When the column is saturated with NH4Cl solution (2.0 mol/L, pH=4.0), the separation can be completed effectively. Zn2+ and Cd2+ can also be separated when different eluants are used and the pure solution with high concentration of Zn2+, Cd2+ respectively can be obtained easily.
Tài liệu tham khảo
XIAO Jine, ZHU Hui-ren. The quality control of the production of cobalt oxide[J]. Non-ferrous Metal Smelting(in Chinese), 1994(2): 26–29
QIN Yu-nan. New technic of extraction of cobalt oxide from cobaltcontained residue[J]. Fine Chemical Engineering (in Chinese), 1988, 5(3): 57–61
The research group of extraction of cobalt oxide from cobalt-contained residue. Study of extraction of cobalt oxide from Jinchuan cobalt-contained residue[J]. Non-ferrous Metal Smelting(in Chinese), 1981 (3): 1–6
WAN Yan, ZHOU Chun-shan. Study on the separation of Co2+ from Cu2+, Cd2+, Mn2+, Zn2+ and Fe2+ by extraction chromatography[J]. Chromatography, 1998, 17(1): 55–57
XIE Gao-yang, YU Lian-ming. The series of inorganic chemistry (Vol.9) (in Chinese) [M]. Beijing: Science Press, 1996
TAO Zu-yi, ZHAO Ai-min. Ionic-exchange equilibrium and dynamics (in Chinese) [M]. Beijing: Atom Energy Industrial Press, 1989. 71–74
LE Song-guang, XIA Zhong-rang. The metallurgy of Cobalt (in Chinese) [M]. Beijing: Metallurgical Industrial Press, 1981. 271–273