Abstract
Cyclic voltammetry (CV), flotation response, evolved-gas analysis (EGA), and X-ray photoelectron spectroscopy (XPS) were employed to evaluate the major differences in the surface property and surface reactivity of a selected coal pyrite and a mineral pyrite. Surface properties of pyrite were evaluated in terms of flotation response in the presence of both an anionic fluorosurfactant and sodium hydrosulfide. The charge transfer adsorption and oxidation potential of sodium hydrosulfide were evaluated using cyclic voltammetry. Drastic differences in the flotation response have been observed between the coal pyrite and the mineral pyrite. Significant differences in the cyclic voltammograms at pyrite surfaces of these two sources were also observed. Measurements by XPS and EGA were used to determine the oxidation products and the rate of oxidation of the coal-pyrite and the mineral-pyrite surfaces.
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Beattie, M.J.V, and Poling, G.W., 1987, International Journal of Mineral Processing, Vol.20, p. 87.
Buckley, A.N., and Woods, R., 1986, Applied Surface Science, Vol. 27, p. 437.
Buckley, A.N., Woods, R., and Waterlood, H.J., 1987, Proceedings, 8th National Convention, Royal Australian Chemical Institute, Sydney, Australia.
Finkelstein, N.P., and Poling, R., 1977, Minerals Science and Engineering, Vol. 9, p. 177.
Lacount, R.B., et al., DOE/PETC/TR-83/5, US Dept. of Energy, p. 22
Pillai, K.C., Young, V.Y., and Bockris, J.O’M., 1985, Journal of Colloid and Interface Science, Vol. 103, p. 145.
Pugh, C.E., Hossner, L.R., and Dixon, J.B., 1981 Proceedings, Soil Science Society of America, Vol. 45, p. 979.
Pugh, C.E., Hossner, L.R., and Dixon, J.B., 1984, Soil Science, Vol. 137, p. 309.
Tolun, R., and Kitchener, J.A., 1964, Transactions, Institution of Mining and Metallurgy, Vol. 73, p. 313.
Tsai, M.-S., Takahashi, N., and Shimoiizaka, J., 1971, Journal, Mining and Metallurgical Institute of japan, Vol. 87, p. 533.
Usui, A.H., and Tolun, R., 1974, International Journal of Mineral Processing, Vol. 1, p. 135.
Wood, R., 1976, “Electrochemistry of Sulfide Flotation,” Flotation Vol. 1, M.C Fuerstenau, ed., AIME, New York, p. 298.
Woods, R., 1971, Journal of Physical Chemistry, Vol. 75, p. 354.
Zachwieja, J.B., Walker, G.W., and Richardson, P.E., 1987, Transactions, SME, Vol 282, p. 146.
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SME preprint 89-6, SME Annual Meeting, Las Vegas, NV, February, 1989. M&MP paper 89-615. Manuscript Nov. 4, 1988. Discussion of this paper must be submitted, in duplicate, prior to May 30, 1990.
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Lai, R.W., Diehl, J.R., Hammack, R.W. et al. Comparative study of the surface properties and the reactivity of coal pyrite and mineral pyrite. Mining, Metallurgy & Exploration 7, 43–48 (1990). https://doi.org/10.1007/BF03403281
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DOI: https://doi.org/10.1007/BF03403281