Studies on ion exchange equilibria and kinetics |
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Authors: | Zhao Aimin Tao Zuyi Tong Wengong Chen Xingqu |
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Affiliation: | 1. Department of Modern Physics, Lanzhou University, Lanzhou, The People's Republic of China
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Abstract: | The kinetics and equilibria of cation exchange HR+Na+=NaR+H+ with 001×7 strong acidic resin have been studied. The isotherm for this reaction has been determined, and the rational equilibrium constant, Ka, calculated. It is found experimentally that at low concentration, the reverse exchange RNa/H+ is faster than the forward exchange; on the contrary, at high concentration, the forward exchange is faster than the reverse exchange. The integral particle interdiffusion coefficients have been calculated and the film interdiffusion coefficients estimated. |
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