Recovery of platinum, tin and indium from spent catalysts in chloride medium using strong basic anion exchange resins

► Platinum, tin and indium recoveries from spent reforming catalysts. ► Adsorption of metal chlorocomplexes on strongly basic anion-exchange resins. ► Sequential desorption via elution with reducing (Pt, Sn) or complexing (In) agents. ► The elements were recovered in very high yields. ► The anion-exchange resins can be reused.