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Issue
Korean Journal of Chemical Engineering,
Vol.21, No.5, 1026-1031, 2004
Ion Exchange of Cs Ion in Acid Solution with Potassium Cobalt Hexacyanoferrate
Moon JK, Lee EH, Kim HT
Potassium cobalt hexacyanoferrate (KCoFC) was synthesized for removal of Cs ions in acid waste solution. The synthesized KCoFC was stable in nitric acid solution of pH=1 and showed high selectivity for Cs ion over Sr and Na ions. The Kd,csfor 0.01 N Cs ion solution at pH=2 was about 3.6X103mL/g in the presence of the same concentrations of Sr and Na ions, respectively. In the binary ion exchange system, both the Dubinin-Polanyi model Langmuir model. However, in the multi-component system, only the modified Dubinin-Polanyi model, which is a semiempirical equation, fit the experimental data accurately. The ion exchange capacity of KCoFC for Cs ion obtained by the Dubinin-Polanyi equation was 1.72 meq/g
Keywords: Ion Exchange; Cesium Ion; potassium Cobalt Hexacyanoferrate; Distribution Coefficient; Separation Factor; Radioactive; Liquid Waste
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[Cited By]
  1. Lee JJ, Moon J, Kim GN, Lee KW, Korean Journal of Chemical Engineering, 27(2), 639, 2010
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