Shahbazi, B., Rezai, B. (2009). The Effect of Type and Dosage of Frothers on Coarse Particles Flotation. Iranian Journal of Chemistry and Chemical Engineering (IJCCE), 28(1), 95-101.
Behzad Shahbazi; Bahram Rezai. "The Effect of Type and Dosage of Frothers on Coarse Particles Flotation". Iranian Journal of Chemistry and Chemical Engineering (IJCCE), 28, 1, 2009, 95-101.
Shahbazi, B., Rezai, B. (2009). 'The Effect of Type and Dosage of Frothers on Coarse Particles Flotation', Iranian Journal of Chemistry and Chemical Engineering (IJCCE), 28(1), pp. 95-101.
Shahbazi, B., Rezai, B. The Effect of Type and Dosage of Frothers on Coarse Particles Flotation. Iranian Journal of Chemistry and Chemical Engineering (IJCCE), 2009; 28(1): 95-101.
The Effect of Type and Dosage of Frothers on Coarse Particles Flotation
1Faculty of Engineering, Research and Science Branch, Islamic Azad University, Tehran, I.R. IRAN
2Faculty of Mining and Metallurgy, Amirkabir University of Technology, Tehran, I.R. IRAN
Abstract
Frothers havea profoundeffectonbubble size and also flotation efficiency. In present study the effect of type and dosage of frothers on the flotation response of coarse particles of quartz was investigated. Therefore, flotation response of coarse particles using frothers such as MIBC, pine oil, poly propylene glycol with concentration of 0, 25, 50 and 75 g/t, was obtained respectively. For all used frothers, maximum recovery was obtained around frother dosage of 25 g/t and with increasing frother dosage, flotation recovery decreased. With increasing frother dosage, bubble diameter, d32, decreased and when Poly Propylene Glycol, MIBC and Pine Oil were used as frother, bubble diameter increased. Maximum bubble diameter was obtained around Pine Oil and frother dosage of 25 g/t and minimum bubble diameter was obtained around Poly Propylene Glycol and frother dosage of 75 g/t. As the particle size increased, the probability of collision increased and with using Poly Propylene Glycol, MIBC and Pine Oil, probability of collision increased, respectively. Maximum collision probability was obtained around 65.46 % with Poly Propylene Glycol dosage of 75 g/t and particle size of 545 microns and minimum collision probability was obtained around 1.43 % with Pine Oil dosage of 25 g/t and particle size of 256 microns.
[1] Comely, B. A., Harris, P. J., Bradshow, D. J. and Harris, M.C, Frother Characterization Using Dynamic Surface Tension Measurement, Mineral Processing, 64, 81 (2002).
[2] Brooth, R. B., Fregberger, W. L., Froth and Frothing Agents, AIME, 50, 258 (1962).
[3] Guy, H. Harris, Renhe, J., An Improved Class of Flotation Froths, Mineral Processing, 58, 35 (2000).
[4] Tucker, J. P., Deglon, D. A., Franzidis, J. P., Harris M. C., O’Connor, C. T., An Evaluation of a Direct Method of Bubble Size Distribution Measurement in Laboratory Batch Flotation Cells, Minerals Engineering, 7, 667 (1994).
[5] Laskowski, J. S., Tlhone, T., Williams, P., Diny, K., Fundamental Properties of the Polyoxy-propylene Alkyl Ether Flotation Frothers, Minerals Engineering, 72, 289 (2003).
[6] Grau, R. A., Heiskanen, K, Bubble Size Distribution in Laboratory Scale Flotation Cells, Minerals Engineering, 18, 1164 (2005).
[8] Girgin, E.H., Do, S., Gomez, C.O. and Finch, J.A., Bubble Size as a Function of Impeller Speed in a Self-Aeration Laboratory Flotation Cell, Minerals Engineering, 19, 201 (2006).
[9] Rodrigues, R.T., Rubio, J., New Basis for Measuring the Size Distribution of Bubbles, Minerals Engineering, 16, 757 (2003).
[10] Yoon, R. H., The Role of Hydrodynamic and Surface Forces in Bubble-Particle Interaction, International Journal of Mineral Processing, 58 (1-4), 129 (2000).
[11] Gaudin, A. M., “Flotation”, 2nd Edition, McGraw-Hill, New York, (1957).
[12] Yoon, R. H. and Luttrell, G. H., The Effect of Bubble Size on Fine Particle Flotation, Mineral Processing, 5, 101 (1989).
[13] Weber, M. E. and Paddock, D., Interception and Gravitational Collision Efficiency for Single Collectors at Intermediate Reynolds Numbers, J. Colloid Interface Sci., 94, 328 (1983).
[14] Sutherland, K. L.,Physical Chemistry of Flotation - XI Kinetics of the Flotation Process, J. Phys. Chem., 52, 394 (1948).
Top