Recovery of Palladium and Rhodium from Spent Automotive Catalytic Converters

摘要

Platinum group metals recovery from spent automotive catalysts is new issue in Iran.Recovery of palladium and rhodium from spent automotive catalytic converters using HCl+NHO3 as oxidising agents was investigated.Effects of temperature,leaching time and solid/liquid ratio were studied.Optimum conditioned were determined at temprature 90 °C,time 4 h and solid content 100 g/L.Maximum palladium and rhodium extractions were 1.756 and 0.145 g/kg cat,respectively.