ABSTRACT
Precious metals such as gold, platinum, and palladium are widely used in many industrial areas, including electronic devices, jewellery, and chemical catalysts, due to their specific properties. However, increasing demand and the limited natural availability of these metals has stimulated efforts to develop efficient and sustainable recovery processes from various urban-mined liquors. This chapter focuses on the recovery of precious metals using ion-exchange chromatographic approaches. Classification of various ion exchangers and their interaction mechanisms with precious metals are discussed in detail. The effects of various factors on recovery, including leaching media, ionic state of precious metals, co-existence of precious metals, and the effect of base metals as an impurity, are also highlighted. The chapter also describes selective elution of precious metals.
