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Recovering Multiple Rare and Precious Metals

     

This method follows a targeted process route: Sn is first leached and separated, followed by leaching of Cu from WPCBs. Next, Al, Ni and Zn are leached and recovered respectively, and the process concludes with the leaching and recovery of Au and Ag.

When recovering various rare and precious metals from WPCBs, this method enables sequential and orderly leaching of all target metals, realizing cascade recovery of rare and precious metals from WPCBs. As a key green recycling technology for waste resources, it supports the circular utilization of waste resources and mitigates environmental hazards from electronic wastes including WPCBs.

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