chelating crosslinked starches as flocculation7 oct 2018 . although flocculants are widely used in water clarification, their more general use in mineral . selective flocculation of hematite, chromite, and cuprite from mixtures with quartz has . elutriating tins was 15 to 16 minutes. . riehl, chemist, avondale research center, for making available zeta potential data.