Overview

• The technique uses trichloroisocyanuric acid activated by salt water as a low-cost, benign leaching reagent that dissolves gold without cyanide or mercury.
• A custom sulfur-rich polymer selectively captures dissolved gold and can be depolymerized back to monomers to release the metal and recycle the sorbent.
• Laboratory tests achieved high-purity gold recovery from printed circuit boards, mixed-metal waste and ore concentrates under ambient conditions.
• Collaborations with experts in the US and Peru validated the method’s suitability for small-scale mining operations and varied feedstocks.
• Researchers are engaging mining and e-waste recycling firms to conduct pilot-scale trials and assess the technique’s industrial feasibility