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Getting gold from e-waste acid free

Flash Joule Heating technology proven effective at laboratory scale.

Noel Dyson
Printed circuit boards can contain up to 400gpt gold and 6kg/t silver. Photo: Shutterstock

Printed circuit boards can contain up to 400gpt gold and 6kg/t silver. Photo: Shutterstock

A proof-of-concept test of Flash Joule Heating technology's ability to recover gold from electronic waste has achieved 70% recovery rates. The FJH recovery involved "flash" heating e-waste in a chlorine...

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