Ilmenite disseminated grain size is relatively fine, and it must be finely ground to fully separate ilmenite from gangue and then produce fine grained minerals, which deteriorates flotation. A novel method using buoyant carriers to improve the recovery of fine ilmenite in froth flotation was introduced in this study. Hydrophobized glass bubbles as carrier materials were obtained by an ...
The flotation results showed that ilmenite was effectively separated from titanaugite as a concentrate with a TiO 2 grade of 43.62% and recovery of 87.42%. The contact angle analysis revealed that sodium citrate further increased the hydrophobicity of ilmenite and decreased it in the case of titanaugite.
Recently, the CSMC has been successfully used in flotation of metallic and non metallic minerals. Cao et al. used the CSMC to separate copper nickel sulfide. They obtained nickel concentrate with a grade of 8.21% and a recovery of 55.24%, compared to only 5.02% and 44.71%, respectively, when using flotation machines for
An ore of magnetite and ilmenite may, however, employ wet magnetic separation to remove magnetite, and all flotation for recovery of the ilmenite in a high grade product. In this case all the gravity circuit including the jigs and tables can be eliminated. This scheme is also applicable on a rutile ore with little or no ilmenite.
The agglomeration flotation of ilmenite refers to the technology that makes ilmenite hydrophobic by means of a collector adsorbed on the surface of ilmenite, and then makes the ore particles cluster by means of the capillary gravity of the bridge solution, and then carries out the separation after floating on it.
The flotation separation of ilmenite from titanaugite can be performed using the mixed NaOL DAA in a wide pH range of 5.07.0. In this pH range, the recovery of ilmenite remains constant at approximately 90%, while the recovery of titanaugite remains lt; 25%. The best separation result can be achieved with NaOL DAA molar ratios of 10:1.