Effect of Various Parameters on the Dispersion of Ultra Fine Iron Ore Slurry. Part-1
The effect of various dispersion parameters; such as slurry pH, solid concentration, stirring speed and time, and water quality has been extensively studied for stabilization the ultra fine iron ore slurry prior to selective flocculation. The PZC of Dilband iron ore system was found by using the Zetaphormeter III (CAD E400) at pH value of 4.25. The set of dispersion parameters was optimized on the basis of weight percent and the percent entrapment of fine particles (10µm) sedimented in 2.5min settling time. Finally the selectivity of the optimal dispersion parameters was evaluated on the basis of elemental analysis of the sediment. The optimal conditions for 38µm ultra fine iron ore slurry in double distilled water were found at concentration of 7.5%solid, pH10.5, stirring speed 2000rpm, and stirring time 5min.
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