Use of weak-acid cation-exchange resins purolite c105 (h + ) and purolite c106 (h + ) for the adsorption

The polyacrylic weak-acid cation-exchangers Purolite C105 (H + ) and Purolite C106 (H + ) have been used in batch wise adsorption of from nitrate solutions containing 0.01 M of at pH 3.2. The two resins, which have a saturation capacity up to about 1.24 mmol g-1 resin, showed rapid exchange kinetics. In addition, the resin Purolite C105 (H + ) displayed high loading in small-scale column operations and retained its capacity after five cycles. Adsorbed was rapidly and quantitatively eluted from this resin with 0.1 N H2SO4. © 1994, Taylor & Francis Group, LLC. All rights reserved