Ion-Exchange Studies in the Removal of Polybasic Acids. Anomalous Sorption Behavior of Phosphoric Acid on Weak Base Resins
- 1 October 1997
- journal article
- research article
- Published by Taylor & Francis in Separation Science and Technology
- Vol. 32 (15) , 2481-2496
- https://doi.org/10.1080/01496399708000781
Abstract
Sorption behavior of phosphoric acid on the weak base resins Amberlite IRA-93 and Dowex WGR-2 is reported. Studies on sorption equilibria and dynamics reveal anomalous sorption behavior as compared to sorption of strong and weak monobasic acids. A mathematical treatment is developed to correlate the experimental data on sorption dynamics. An alternative type of mechanism is also proposed based on the results obtained in this work to explain the anomalous sorption behavior of phosphoric acid on weak base resins.Keywords
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