Recovery and Purification Process of Platinum,Palladium,and Rhodium from Three-way Catalysts
Precious metal resources are scarce in China,and the deactivation of platinum group precious metal catalysts used in automotive exhaust purification devices can lead to resource waste if they are directly discarded.This paper mainly introduces the process of pyrometallurgical enrichment and chemical purification to recover platinum,palladium,and rhodium from three-way catalysts.This method is suitable for the recovery of platinum group precious metals in three-way catalysts,and has many advantages such as high economic benefits and simple process.
platinum group precious metalsrecoverypurification