Selective flocculation studies on iron ore minerals

Subramanian, S. ; Natarajan, K. A. (1987) Selective flocculation studies on iron ore minerals Transactions of the Indian Institute of Metals, 40 (6). pp. 489-496. ISSN 0972-2815

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Selective flocculation was studied for binary combinations of artificial mixtures of hematite, corundum, and quartz and on a ternary system containing hematite, corundum, and quartz by using starch as the selective flocculant. The important parameters studied were pH and starch concentration, and the effect of a dispersant was examined. Quartz is easily separated from hematite and corundum, though selective flocculation of the hematite-corundum system was not favorable. In a ternary mixture, the Al2O3/SiO2 ratio is decreased from approximate 1.5 to approximate 0.9 by selective flocculation.

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