Recovery of Rare Earth Element Cerium from Spent Automotive Exhaust Catalysts Using a Novel Method

This study developed a new method for the recovery of the rare earth element cerium (Ce) from spent automotive exhaust catalysts. The content of Ce was 5.31% (wt%) in the spent catalyst sample. Sulfuric acid (2 mol/L) and hydrofluoric acid (0.9 mol/L) were used as a mixed acid leaching agent to succ...

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