Method for recovering palladium from palladium-containing polyketone

The invention belongs to the field of precious metal recovery, and particularly relates to a method for recovering palladium from palladium-containing polyketone. The method comprises the following steps: 1) dissolving palladium-containing polyketone in a zinc chloride solution to obtain a solution I; 2) adding p-benzoquinone into the solution I in the step 1) to obtain a solution II; (3) heating and stirring the solution II in the step (2) until the temperature is higher than the temperature required by polymerization reaction; adding a palladium adsorbent, and filtering to obtain filtrate and a palladium-enriched solid; 4, the filtrate in the step 3 is washed, and polyketone in the filtrate is recycled. The method is simple in process, most of palladium remaining on the polyketone can be recycled, and the content of the palladium remaining on the recycled polyketone is smaller than or equal to 0.6 ppm. 本发明属于贵金属回收领域，具体涉及一种从含钯聚酮上回收钯的方法。本发明的方法包括如下步骤：1）将含钯聚酮溶解于氯化锌溶液中，得到溶液I；2）步骤1）中的溶液I中加入对苯醌，得到溶液II；3）对步骤2）中的溶液II