The invention relates to a method for purifying high purity
ammonium rhenate from a liquid containing
ammonium rhenate. The method comprises the following steps of: a, concentrating the liquid containing
ammonium rhenate and adding a
hydrogen dioxide liquid into the concentrated liquid; stirring and removing surface foam of the mixed liquid and filtering; b, cooling the filtrate obtained in the step a, then, filtering and taking out crystallized substances and performing centrifugal
dewatering treatment, and placing the crystallized substances again to an oven to dry to prepare the high purity ammonium rhenate; and c, mixing the filtrate obtained by the step b with the liquid containing ammonium rhenate and repeating the step a and the step b to prepare a high purity ammonium rhenate product. According to the invention, the concentration temperature is reduced, the loss of
rhenium entrained in vapor volatilization is reduced, and the
rhenium recovery rate is improved. Compared with the prior art, the method is free from
ammonia or
ammonia water, and environment-friendly in the production process, and meanwhile, low valence
metal ions which are difficult to remove are converted into high valence
metal ions which are easy to remove by the
hydrogen peroxide liquid. The low valence rhenate is converted into the high valence rhenate, so that the purity of the ammonium rhenate product is ensured.