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Adsorption Kinetics of Benzoic Acid on Adsorption Resins

Jinlong Chen

Abstract

A comparison study is made on the adsorption kinetics of benzoic acid by high-crosslinked adsorption resin NJ-8 with that by Amberlite XAD-4, and the effects of temperature and initial solute concentration on equilibrium time and adsorption rate are deeply investigated. Results show both film diffusion and particle diffusion are the rate-controlling process in the adsorption systems tested. But particle diffusion is more predominant for NJ-8 while film diffusion for Amberlite XAD-4.

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Key concepts: Amberlite, Adsorption, Benzoic acid, Diffusion, Kinetics, Chemistry, Particle (ecology), Chemical engineering