The flocculation performance of grafted sodium alginate and other polymeric flocculants in relation to iron ore slime suspension

摘要

IThe flocculation characteristics of sodium alginate-g-polyacrylamide (grade VI) SAG-VI developed in auth, laboratory was compared with some commercially available flocculants in aqueous suspensions of 0.5 wt. % iron slimes. Two varieties ofiron ore slimes were taken, one is denser than other, for comparison. The iron ore slime saml were characterized using XRD analysis, IR spectroscopy, chemical analysis and density measurements. Among various polymeric flocculants, SAG- VI, shows better performance than others in one case, whereas its performanc comparable or at par in the other case. Iron ore slimes with smaller particle size are better flocculated by the l1eu flocculants than those with a larger particle size.