Method for purifying crude ammonium rhenate produced through copper smelting

The invention provides a method for purifying crude ammonium rhenate produced through copper smelting. The ammonium rhenate is purified by using pure water, nitric acid and ammonia water, and the method comprises the steps: re-dissolving the crude ammonium rhenate in pure water firstly, preventing introduction of impurity elements, then using nitric acid to remove the impurity elements in the crude ammonium rhenate, using ammonia water to remove impurity metal precipitates in the crude ammonium rhenate solution finally, preventing introduction of impurity elements at the same time, and performing crystallization so as to obtain a high-purity ammonium rhenate crystal. The method has a short process path, few control parameters and simple operation, the concentration of the ammonium rhenateproduct is increased stably, and the recovery rate of the product is high. 本发明提供一种铜冶炼粗铼酸铵的提纯方法，采用纯水-硝酸-氨水实现铼酸铵的提纯，首先通过纯水将粗铼酸铵进行重溶，杜绝杂质元素带入，再利用硝酸去除粗铼酸铵中的杂质元素，最后利用氨水去除粗铼酸铵溶液中的杂质金属沉淀，同时避免杂质元素的带入，结晶后即可得到高纯度的铼酸铵结晶物。本发明工艺流程短，控制参数少，