Method for Extracting Precious Metal Elements from Waste Printed Circuit Board Using Waste Copper Slag

摘要

Although waste printed circuit boards (PCBs) of discarded electronic products contain a considerable amount of precious metal elements, they are currently deemed to be effectively extracted in Korea, but almost entirely discarded or exported to foreign countries.;Therefore, the present invention focuses on the fact that the composition of the waste copper (Cu) slag generated during the copper smelting process is very preferable as a solvent component to be added when the waste PCB is melted using the precious metal dry dissolution method to obtain the precious metal element. It is intended to be used as a substitute for quicklime or silicon dioxide.