Signal
99%+
Recovery of target metals
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Delivered
Extraction of precious metals from copper electrolysis sludge
A copper refinery generated thousands of tons of sludge containing gold, platinum, palladium, silver, and copper, discarded as waste.
Approach
Hydrometallurgical process combined with selective electrodialysis membrane separation recovered precious metals at high purity.
Outcome
Created a new revenue stream for the client while diverting sludge from landfill.