METHOD FOR RECOVERING PLATINUM AND PALLADIUM FROM SPENT CATALYSTS BY SULFATION REACTION

摘要

The present invention mixes the spent alumina carrier catalyst containing platinum group metals from petrochemical and refinery with ammonium sulfate and then roasts them to convert the poorly soluble alumina into the aluminum sulfate and dissolve in water. The present invention relates to a method for concentrating and recovering a platinum group metal such as platinum and palladium by removing the same.