Flotation separation of acrylonitrile-butadienestyrene (ABS) and high impact polystyrene (HIPS) from waste electrical and electronic equipment (WEEE) by potassium permanganate surface modification

The wasted acrylonitrile–butadienestyrene (ABS) and high impact polystyrene (HIPS) have a great potential for recycling. However, it is difficult to recycle them due to the absence of an effective separation method. Permanganate oxidation is a kind of environmental protection process and plays an important role in green chemistry. In this study, the polymer surface modification by potassium permanganate was utilized to separate ABS and HIPS from...