Optimized shredding conditions enables improvement in leaching time for REEs in end-of-life hard disk drives (HDDs)
A HDD shredder designed to result in optimally shredded feedstock for acid-free dissolution and also minimize the amount of magnets attached to the cutters during shredding has been commissioned. Consequently, only ~60% of the original leaching time is required and a dissolution efficiency of ≥72% wt.% was obtained for HDDs.
