An Experimental Investigation on the Copper Recovery from Flotation Tailing Dams by Reflotation
- 22 Downloads
In this study, the possibility of copper recovery from flotation tailing of Mazraeh copper mine was investigated. Magnetic separation method was used for concentration of non-magnetic minerals, especially copper bearing minerals, from iron minerals. As a result, copper grade increased up to 0.18% and its recovery reached 86%. Due to mineral’s oxidized surface, accompanied oxide minerals and large quantities of fine particles (i.e. about 80% and 57% were finer than 37 and 15 μm in the sample, respectively), flotation of copper was very difficult. In this regard, the effects of important factors including solution pH, type and collector dosage, dispersant, impeller speed, type of frother, percent solid and surface sulfurization were studied. It was concluded that copper recovery of 52% and copper grade of 2.7% could be obtained under following conditions: pH: 11, Collector: Z11 with 40 g/t, Impeller speed: 1400 rpm, Frother: A65, percent solid: 10% and surface sulfurization by Na2S with 1000 g/t. On the other hand, the addition of sodium silicate as a dispersant showed a negative effect on the flotation performance.
KeywordsMazraeh mine tailing copper flotation Z11 A65
Unable to display preview. Download preview PDF.
- 6.Rodrigues, W., Leal Filho, L., and Masini, E., Hydrodynamic dimensionless parameters and their influence on flotation performance of coarse particles, Miner. Eng., 2001, vol. 14, no. 9, pp. 1047–1054.Google Scholar
- 31.Tegin, I. and Ziyadanoglllari, R., The effect of sulfurization process on flotation of copper ore containing gold and silver, J. Miner. Mater. Charact. Eng., 2008, vol. 7, no. 3, p. 193.Google Scholar
- 33.Castro, S., Soto, H., Goldfarb, J., and Laskowski, J., Sulphidizing reactions in the flotation of oxidized copper minerals. II. Role of the adsorption and oxidation of sodium sulphide in the flotation of chrysocolla and malachite, Int. J. Miner. Process., 1974, vol. 1, no. 2, pp. 151–161.CrossRefGoogle Scholar
- 34.Ziyadanogullari, R. and Aydin, F., A new application for flotation of oxidized copper ore, J. Miner. Mater. Charact. Eng., 2005, vol. 4, no. 2, p. 67.Google Scholar
- 43.Atrafi, A., Hodjatoleslami, H., Noaparast, M., Shafaei, Z., and Ghorbani, A., Implementation of flotation and gravity separation, to process Changarzeh sulfide–oxide lead ore, J. Min. Environ., 2012, vol. 3, no. 2, pp. 79–87.Google Scholar
- 44.Haselhuhn III, H.J., The Dispersion and Selective Flocculation of Hematite Ore, Houghton, MI: Michigan Technol. Univ., 2015.Google Scholar
- 47.A. Veiskarami, M.N., Shafaei, S.Z., and Gharabaghi, M., Cu recovery from copper smelter slag sample, using flotation with two-level fractional factorial design approach, Hydrometall. Process., 2014.Google Scholar