Method for recovering rhodium from rhodium-containing waste liquid

The invention provides a method for recovering rhodium from rhodium-containing waste liquid. The method comprises the following steps: concentrating the rhodium-containing waste liquid to prepare a concentrated solution; wherein the weight percentage of rhodium in the concentrated solution is not lower than 1%; and adding nitrite and hydrazine hydrate to the concentrated solution for reaction, andcollecting solids. With adoption of the recovery method, recovery rate of rhodium in the rhodium-containing waste liquid is high, and the recovered rhodium-containing product is high in purity. 本发明提供一种含铑废液中铑的回收方法，包括如下步骤：浓缩含铑废液，制备浓缩液；所述浓缩液中铑的重量百分比不低于1％；于所述浓缩液中，加入亚硝酸盐和水合肼进行反应，收集固体。该回收方法对于含铑废液中铑的回收率高、回收得到的含铑产品纯度高。