Abstract
Because of similar chemical structures and compositions, huntite and magnesite have similar flotation behaviors and, therefore, cannot be easily separated by flotation infine sizes. This study describes the optimum flotation conditions for the separation of huntite from magnesite by using microflotation and bench flotation tests. Zeta potential measurements and adsorption tests were performed to explain the mechanism of separation. Common ions such as Ca2+ and Mg2+ specifically adsorb on the surface of huntite and magnesite and make the mineral surface positively charged. Experimental findings on run-of-mine ore indicate that magnesite is the floated product and huntite is the rejected product. Carboxymethyl cellulose (CMC) was found to be a strong depressing agent for huntite in the alkaline region, presenting only a slight action on magnesite flotation. In the flotation tests a huntite concentrate containing 97.71 % huntite was produced with an 86.2% recovery and a magnesite concentrate containing 81.28% magnesite was obtained with a 16.9% recovery.
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References
Bolger, R., 1996, Flame retardant minerals,” Industrial Minerals, January, pp. 29–39.
Brandao, P.R.G., and Poling, G.W., 1988, “Flotation of magnesite with Na-oleate as collector; and infrared spectrophotometric study,” XVIth International Mineral Processing Congress, E. Forssberg, ed., Elsevier Science Publishers B.V., Amsterdam, pp. 1463–1475.
Chen, G., and Tao, D., 2004, “Effect of solution chemistry on floatability of magnesite and dolomite,” Internationa/Journal of Mineral Processing, Vol. 19, pp. 343–357.
Gallios, G.P., and Matis, K.A., 1989, “Floatability of magnesium carbonates by sodium oleate in the presence of modifiers,” Separation Science and Technology, Vol. 19, 182, pp. 129–143.
Gence, N., and Özdag, H., 1995, “Surface properties of magnesite and surfactant adsorption mechanism,” International Journal of Mineral Processing, Vol. 19, pp. 37–47.
Kangal, O., Sirkeci, A.A., and Güney, A., 2005a, “Flotation behavior of huntite (Mg3Ca(CO3)4) with anionic collectors,” International Journal of Mineral Processing, Vol. 19, pp. 35–39.
Kangal, O., Firat, C., and Güney, A., 2005b, “Flotation properties of unusual carbonates: huntite and hydromagnesite,” Technical Note, Minerals Engineering (Accepted for Publication).
Kirschbaum, G., 2001, “Minerals on fire, flame retardants look to mineral solutions,” Industrial Minerals, September, pp. 61–67.
Matis, K.A., Gallios, G.P., Stalidis, G.A., and Hollick, C.T, 1989, “Flotation of magnesite and dolomite by fatty acids,” Trans. Instn. Min. Metall., Section C, Vol. 19, pp. C99–105, May–August.
Potapenko, V.E., Suvorova, D.I., and Tyuryukhanov, L.G., 1985, “Optimizing the reagent schedule for flotation of Satkinsk magnesite using returned water,” Refractories, Vol. 19, No. 7, July, pp. 353–358.
Santana, A.N., and Peres, A.E.C., 2000, “Reverse magnesite flotation,“ Technical Note, Minerals Engineering, Vol. 19, pp. 107–111.
Schmidt, R., 1999, “In the line of fire, flame retardants overview,” Industrial Minerals, February, pp. 37–41.
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Kangal, O., Güney, A. Flotation characteristics of magnesite and huntite. Mining, Metallurgy & Exploration 23, 171–176 (2006). https://doi.org/10.1007/BF03403205
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DOI: https://doi.org/10.1007/BF03403205