Abstract
Poisoning of ion exchange resin often occurs in uranium hydrometallurgy processes, which reduces or even depletes the adsorption capacity of uranium adsorption. Many regeneration methods have been investigated but their static desorption efficiency is undesirable and only the recovery rate is considered in the selection of regenerant. In this paper, NaClO was selected as an antidote based on a series of investigation indexes. After detoxification by dynamic elution, all performance indexes of the regenerated resin are close to those of the new resin. Compared with static method, reagent consumption and detoxification time can be saved. At the same time of reducing the cost and waste liquid discharge, it also improves the work efficiency.
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