Comparative Study of Gold Concentration by Elutriation from Different Precious Metal Bearing Ores


Conventional methods for precious metals gravimetric concentration involve equipment such as shaking tables, centrifuging concentrators, jigs, trommels, or a combination of those. A less commonly used technique is elutriation, which represents an efficient, safe and low-cost method of separation. The goal of the present investigation was to make a comparative study of gold concentration by elutriation from different precious metal bearing ores: an oxide ore, a mineral consisting of a sulfide matrix, a mineral in which the precious metals are free and disseminated and a slimy and clayey black sand material. The best recoveries of precious metals by elutriation were attained for the free disseminated ore and for the black sands, obtaining gold recoveries of 70% and 96% respectively, with appreciable ratios of concentration as well.

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Encinas-Romero, M. , Tiburcio-Munive, G. and Valenzuela-García, J. (2013) Comparative Study of Gold Concentration by Elutriation from Different Precious Metal Bearing Ores. International Journal of Nonferrous Metallurgy, 2, 121-127. doi: 10.4236/ijnm.2013.24018.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] B. A. Wills, “Mineral Processing Technology,” Pergamon Press, Oxford, England, 1979.
[2] M. G. Rasul, V. Rudolph and F. Y. Wang, “Particle Separation Using Fluidization Techniques,” International Journal of Mineral Processing, Vol. 60, No. 3-4, 2000, pp. 163-179.
[3] A. F. Taggart, “Handbook of Mineral Dressing,” John Wiley & Sons, New York, 1945.
[4] J. Elder, W. Kow, J. Domenico and D. Wyatt, “Gravity Concentration—A Better Way,” Proceedings of the International Heavy Minerals Conference, 18-19 June 2001, Australasian Institute of Mining and Metallurgy, pp. 115-118.
[5] E. G. Kelly and D. J. Spottiswood, “Introduction to Mineral Processing,” John Wiley & Sons, Inc., New York, 1992.
[6] A. Escamilla Ruvalcaba, “Tratamiento por Elutriación para la Concentración de Minerales de Oro y Plata,” B.S. Thesis, Universidad de Sonora, Hermosillo, Sonora, 1999.
[7] J. M. Rodriguez, J. R. Sánchez, A. Alvaro, D. F. Florea and A. M. Estévez, “Fluidization and Elutriation of Iron Oxide Particles. A Study of Attrition and Agglomeration Processes in Fluidized Beds,” Powder Technology, Vol. 111, No. 3, 2000, pp. 218-230.
[8] L. J. Cabri, “New Developments in Process Mineralogy of Platinum-bearing Ores,” Proceedings of the Canadian Mineral Processors, 36th Annual Meeting, Ottawa, 2004, pp. 189-198.

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