Technique of Cyanide Recovery by Ion-exchange Method

This invention belongs to a technique for the gold industry to treat the cyanide-containing wastewater, which features that the anion in the waste water with stronger adsorptivity exchanges with the exchangeable anion in the resin when passing through the ion-exchange resin, making the impurities in the waste water adsorbed onto the resin, while the anion on the resin is replaced and left in the treated waste water, by which the impurity concentration in the waste water that may influece gold recovery is tremendously reduced, keeping the waste water recycled, and the saturated resin with adsorbed impurities may be reused after desorption. This method is less in capital investment, high in profit, and friendly to environment, being an ideal technique.
Patent number：96106396