JMMCE  Vol.1 No.5 , September 2013
Recovery of Iron Ore Tailings byColumn Flotation
ABSTRACT
The exploration of iron ore in small mining companies results in a large amount of unrecovered fine material, representing 35% of the run of mine. Millions of tons of useful minerals are discarded every year into tailings, incurring operation costs, raising production losses and environmental impact. In addition to the disposal of 300 t/h of this material, millions of tons are already stored in tailings. CDTN carried out a study of the process in a column flotation pilot plant installed in the mining facilities with a slime sample, with a view to recovering this sludge using the reverse flotation technique. The aim of this experiment was to obtain a final concentrate whose Fe content assigned 66% with a SiO2 content below 0.8% and P lower than 0.03%. The results showed that the ultrafine flotation is an economical alternative if the improvement of the recovery in the mineral sector is concerned. Ultrafine flotation can also be assessed when dealing with reduction and treatment of effluent discharged in the environment.

Cite this paper
P. Praes, R. de Albuquerque and A. Luz, "Recovery of Iron Ore Tailings byColumn Flotation," Journal of Minerals and Materials Characterization and Engineering, Vol. 1 No. 5, 2013, pp. 212-216. doi: 10.4236/jmmce.2013.15033.
References
[1]   R. Houot, “Beneficiation of Iron Ore by Flotation—Review of Industrial and Potential Applications,” International Journal of Mineral Processing, Vol. 10, No. 3, 1983, pp. 183-204. doi:10.1016/0301-7516(83)90010-8

[2]   I. M. Flint, H. E. Wyslouzil, V. L. L. Andrade and D. J. Murdoch, “Column Flotation of Iron Ore,” Minerals Engineering, Vol. 5, No. 10-12, 1992, pp. 1185-1194.doi:10.1016/0892-6875(92)90158-6

[3]   A. C. Araujo and A. E. C. Peres, “Froth Flotation: Rele- vant Facts and the Brazilian Case,” Série Tecnologia Mineral, CETEM, Rio de Janeiro, 1995, pp. 70-78.

[4]   M. B. M. Monte and A. E. C. Peres, “Química de Superfície na Flota??o,” In: A. Luz, Ed., Tratamento de Minérios, 3rd Edition, Rio de Janeiro, 2002, pp. 339-407.

[5]   A. C. Araujo and P. R. M. Viana, “Minérios de Ferro e Seus Métodos de Concentra??o IV Simpósio Brasileiro de Minério de Ferro,” Belo Horizonte, 2003, pp. 750-758.

[6]   I. Iwasaki, “Iron Ore Flotation, Theory and Practice,” In: P. S. Mapa, Ed., Mining Engineering, M.Sc Dissertation, UFMG, 2006, pp. 26-28.

[7]   P. J. B. Rabelo, “Estudos de Caracteriza??o e Redu??o do Teor De Fósforo do Minério de Ferro da Mina de Alegria, Mariana, MG,” M.Sc Dissertation, UFMG, 1994, pp. 23-25.

 
 
Top