Upgradation of Iron Ore Fines and Slime by Selective Flocculation Using Surface-Active Agents, Settling Study, and Characterization of the Beneficiation Waste for Value Addition

Table 5

Values of the parameters of equation (1) for beneficiation of 10 wt. % slurry of fines.

Experiment	System	Rate constant (k) in min^−1	Half-life time (t1/2) in min.	Yo	Plateau	Goodness of fit (R^2)
Stability of suspension in 10 wt. % slurry of iron ore fines (Figure 5)	With 0.05% humate, pH 8	0.0463	14.95	4.232	1.486	0.9824
	With (0.05% humate + 5% starch), pH 8	0.0688	10.07	4.203	1.686	0.9656
	With (0.05% humate + 10% starch), pH 8	0.0642	10.79	4.015	1.529	0.9675
	With (0.01% humate + 5% starch), pH 8	0.0616	11.25	3.517	1.063	0.9800
	With (0.01% humate + 10% starch), pH 8	0.0663	10.45	3.747	1.143	0.9881
	Without additive, pH 8	0.3469	1.998	4.728	0.6846	0.9786