| According to the promising application and market condition of precious metals, it is urgent and necessary to recover precious metals from spent auto-catalysts. Considering the economic cost, recovery efficiency, environmental protection, safety, maturity and reliability of process, the recovery of precious metals from spent auto-catalysts is mainly carried out by the route of pyrometallurgy and hydrometallurgy techniques.This paper analyzes the advantages and disadvantages of the process of recovering precious metals from spent auto-catalysts by pyrometallurgy, and looks forward to the process technology that is economical, environmental friendly and conducive to industrialization in the field of platinum group metals recovery. |
