Extract Gold from Waste PCBs in a Low Cost, Sustainable Way
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Extract Gold from Waste PCBs in a Low Cost, Sustainable Way
A Method for Recovering Gold from a Printed Circuit Board
Tags: National Taiwan University, Taiwan, Science & Exploration, Energy & Environment
This technology recycles gold from waste PCBs using a low-cost, low-pollution method involving ammonium thiosulfate and hydrogen peroxide, avoiding toxic acids like aqua regia. Over 95% of gold is recovered from PCBs, significantly reducing environmental impact. The process maintains waste liquor at a neutral pH, further minimizing pollution. This innovative method outperforms traditional gold recovery techniques, offering a sustainable solution to electronic waste recycling.
IP Type or Form Factor: Patent Granted; Process & Method
TRL: Not specified
Industry or Tech Area: Mining & Precious Metals; Circular Economy & Waste Upcycling
