Modified Shrinking Core Model for Reversible Sorption on Ion-Exchange Resins
- 1 July 1992
- journal article
- research article
- Published by Taylor & Francis in Separation Science and Technology
- Vol. 27 (8) , 1043-1064
- https://doi.org/10.1080/01496399208019023
Abstract
A modified shrinking core model is proposed to correlate dynamics of acid sorption on weak base ion-exchange resins in free base form. The model considers reversibility of the sorption process which is ignored in the conventional shrinking core model. The model is easy to apply and is shown to yield results which are in agreement with a computationally intensive rigorous model. The model is successfully verified using the experimental data on sorption of strong acids (HCl and HNO3) on weak base resins (Dowex WGR-2 and Amberlite IRA-93).Keywords
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