A method to collect precious metals from waste catalysts (A dry method to collect precious metals of platinum group)

-Abstract: This invention is a technology relating to a method of collecting precious metals of platinum group such as platinum, palladium and rhodium from waste catalysts, and more specifically relating to a method of collecting precious metals by separating alloys containing precious metals such as platinum, palladium and rhodium from vehicle waste catalysts or petrochemical waste catalysts discarded after enough use, from slag.