Improvement of environmental safety and economic efficiency of gold extraction industry

Abstract

This project was devoted to reach two aims: (i) to optimize the gold leaching process based on ammonia thiosulfate and catalyzed by copper as a novel leaching agent, and (ii) to develop the cyanide recycling technology. Alternative technologies such as Acidification-Volatilization-Reneutralization (AVR), Sulphidization, Acidification, Recycling and Thickening (SART) and Gas Membrane technologies were compared and considered for further development.