The present research focuses on the sorption, the kinetics and the regeneration properties of macroporous lignin ion-exchangers toward rhenium ions depending on the nature and the concentration of the functional groups of the ion-exchangers and the eluents, the metal ions and the acid concentration in the solution, the duration of the sorption and desorption processes and the number of the feasible sorption/desorption cycles. The optimum conditions of perrhenate ions sorption and desorption are established. It is found that among all of the used eluents viz., H2SO4 of a different concentration, 10 % NH4OH, 1N NaOH, and 1N H3PO4, the solution of 2N H2SO4 is the most effective eluent for extracting the trapped metal ions from lignin ion-exchangers. It is found that the ion-exchanger... containing polyethyleneimine groups is regenerated better than the other one and found to be suitable for reuse in successive adsorption-desorption cycles ten times without a significant loss in the performance. The results suggest that this ion-exchanger can be used as an adsorbent for the efficient removal of rhenium ions from sulfate solutions.