Abstract
Factorial design of column-flotation experiments was used to understand the main and interactional effects of the column parameters. In the experiments, the air flow rate, the wash-water flow rate and the froth depth were varied at two levels. Analysis of the results showed that an increase in air flow rate had a deleterious effect on the grade of the concentrate, whereas, an increase in froth height increased the grade. The interactions between air flow and wash water and between air flow and froth height were significant with respect to grade of the concentrate. These results demonstrated that, from an ore containing 12.76% P2O5, it is possible in a single-stage flotation column to obtain a concentrate containing 31% P2O5 (10.6% SiO2) with a recovery of 94%, thus reducing the number of cleaning stages that would be required if conventional flotation cells were used.
Similar content being viewed by others
References
Dobby, G.S., and Finch, J.A., 1991, “Column flotation: A selected review — Part II,” Minerals Engineering, Vol. 4, No. 7–11, p. 911.
Finch, J.A., and Dobby, G.S., 1990, Column Flotation, Pergamon press.
Finch, J.A., and Dobby, G.S., 1991, “Column flotation: A selected review — Part I,” International Journal of Mineral Processing, Vol. 33, p. 343.
Griffith, W.A., 1962, “The design and analysis of flotation experiments,” 50th Anniversary Vol., D.W. Fuerstenau, ed., AIMMPE, p. 177.
Ityokumbul, M.T., 1992, “A new approach to flotation column design,” Minerals Engineering, Vol. 5, No. 6, p. 685.
Prasad, M., Rao, L.S., Majumdar, A.K, Banerjee, P., Rao, G.M., and Rao, T.C., 1992, “Low grade rock phosphate deposit of M.P. — A possible resource for fertilizer industry,” Proceedings of the National Seminar on Research and Process Development in Mineral Preparation, Jamshedpur, India, p. 190
Ronald, E.W., and Raymond, H. M., 1989, Probability and statistics for engineers and scientists, Macmillan Publishers, London, 4th edition, p. 578
Tuteja, R.K., Spottiswood, D.J., and Misra, V.N., 1994, “Mathematical models of the column flotation process - A review,” Minerals Engineering, Vol. 7, No. 12, p. 1459.
Author information
Authors and Affiliations
Additional information
SME nonmeeting paper 95–606. Discussion of this peer-reviewed and approved paper is invited and must be submitted, in duplicate, prior to Feb. 28, 1997.
Rights and permissions
About this article
Cite this article
Patil, D.P., Barnwal, J.P. & Rao, T.C. Column flotation of siliceous rock phosphate. Mining, Metallurgy & Exploration 13, 147–150 (1996). https://doi.org/10.1007/BF03402736
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF03402736