Platinum Group Metals (PGMs) Leaching in Alkaline Glycine Solutions

Abstract

Platinum Group Metals (PGMs) are part of the internationally declared Critical Minerals and are typically found in disseminated ultramafic polymetallic deposits. They are crucial for the green energy transition. Australia's PGM resources are limited, with Gonneville-Julimar being a notable low-grade deposit. Conventional processing faces challenges due to environmental constraints, leading to the exploration of greener reagents, such as alkaline glycine leach technology. This work lays a foundation for environmentally sustainable PGM extraction, particularly in regions where cyanide use is restricted.