Method for recycling valuable metals of waste circuit boards

The invention discloses a method for recycling valuable metals of waste circuit boards. The method is realized by the following steps: (1) carrying out tin removal treatment on the waste circuit boards to obtain circuit board light plates; (2) crushing the circuit board light plates, and then sequentially carrying out magnetic separation iron removal and eddy current separation aluminum removal torespectively obtain an iron material, an aluminum material and a circuit board crushed material; (3) carrying out pyrolysis treatment on the circuit board crushed material to obtain copper-containingcarbon powder; (4) carrying out oxygen-enriched smelting treatment on the copper-containing carbon powder of a pyrolysis product to obtain a crude copper phase, a smoke dust phase and a slag phase; and (5) further recycling valuable metals in the smoke dust phase, the crude copper phase and the slag phase to obtain valuable metals of zinc, lead, copper, gold, silver and palladium. According to the method, the waste circui