Characterization and ion specificity of the iron ore beneficiation waste

Das, Manash R and Sarma, Jyotirmoy and Sarma, Namrata and Mahiuddin, Sekh (2010) Characterization and ion specificity of the iron ore beneficiation waste. In: Proceedings of the XI International Seminar on Mineral Processing Technology (MPT-2010), Dec 2010, NML Jamshedpur, India.

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Low-grade iron ore fines and slime contain ~ 58% iron and high amount of alumina containing gangue minerals. Beneficiation of low-grade iron ore fines and slime using surface-active agent produces a reasonably stable suspension. To recover water from the suspension and to reduce the volume of the tailing pond, flocculation of suspended gangue minerals is essential. The gangue minerals in the dispersed phase were characterized by XRD and FTIR and found to be chlorite, kaolinite, hematite, goethite, aluminosilicate minerals as major phases. The influence of inorganic anions (Cl−, I−, and SO42−) and divalent cations (Ca2+) on the zeta potential and the isoelectric point of dispersed phase of iron ore slime in aqueous medium have been studied. The ion specificity an ubiquitous phenomena has been observed in the beneficiation waste.

Item Type:Conference or Workshop Item (Paper)
Official URL/DOI:
Uncontrolled Keywords:Beneficiation, Dispersion-cum-settling, Iron ore fines, Slimes, Surface-active agents, Characterization, Ion specificity.
Divisions:Mineral Processing
ID Code:2368
Deposited By:Dr. A K Sahu
Deposited On:18 Jan 2011 09:42
Last Modified:19 Aug 2015 11:08
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