Experimental Study of Ilmenite Beach Sands Tailings Flotation

doi:10.12068/j.issn.1005-3026.2016.03.024

Abstract

Abstract: A series of flotation experiments on ilmenite placer tailings in Beihai area， Guangxi Province were performed and the ilmenite placer tailings were obtained through gravity separation and magnetic separation. The experimental results showed that Pb(NO₃)₂ activates ilmenite because Pb²⁺ has specific adsorption on ilmenite and thus the capacity to collect ilmenite by sodium oleate is increased. The sodium silicate and sulfuric acid were used as regulators， Pb(NO₃)₂ was used as activator and sodium oleate was used as collector. Under the conditions of sulfuric acid(900g/t)，sodium silicate(400g/t)，Pb(NO₃)₂(30g/t)，sodium oleate(450g/t)，the ilmenite concentrate recovery of 54.61% and the TiO₂ grade of 39.55% can be obtained by a closed flotation circuit of one rough and two concentrations.

Key words: ilmenite, tailings, flotation, beach placer, lead nitrate

CLC Number:

TD91

DENG Chen-xiong， YAO Jin， YIN Wan-zhong， YIN Lin-lin. Experimental Study of Ilmenite Beach Sands Tailings Flotation[J]. Journal of Northeastern University Natural Science, 2016, 37(3): 416-420.

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