2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 10: Mineral & Secondary Battery

Editors:Kongoli F, Silva AC, Arol AI, Kumar V, Aifantis K
Publisher:Flogen Star OUTREACH
Publication Year:2015
Pages:340 pages
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
< CD shopping page

    The Prospects for the Use of High-Power Nanosecond Pulses to Flotation Separation of Sulfides from Rock-Forming Minerals

    Igor Bunin1; Valentine Chanturiya1; Irina Khabarova1; Maria Ryazantseva1; Elizaveta Koporulina2;
    Type of Paper: Regular
    Id Paper: 251
    Topic: 5


    In the processing and flotation concentration of sulfide polymetallic ores, it is important to understand the oxidation mechanisms of the surfaces of separated sulfides along with the structure and properties of oxidized fragments of the surfaces.
    The authors investigated earlier the effect of high-power nanosecond electromagnetic pulses (HPEMP: E ~10(7) V/m; I„(pulse)~10 ns) on the phase composition and the electrochemical, sorption and flotation properties of semiconductor ore minerals pyrrhotite, pentlandite, Nhalcopyrite, sphalerite and other sulfide minerals (Bunin, Chanturiya et al, Shechtman International Symposium, 2014).
    In this report, we present new experimental data on varying the composition and chemical state of surface atoms of galenite (PbS, galena) and calcite (CaCO3) before and after treatment by high-voltage nanosecond pulses. The effect of nanosecond pulses on the phase composition of a galenite and calcite surface is investigated by means of X-ray photoelectron spectroscopy (XPS) and IR Fourier spectroscopy. According to the XPES data, structural phase transformations caused by pulsed treatment are mainly associated with variations in the chemical state of sulfur atoms. The chemical state of the lead surface lead atoms did not vary much after the pulsed treatment.
    The results from spectroscopic investigations agree with the data on the effect HPEMP has on the electrochemical and flotation properties of galenite: electromagnetic pulsed treatment produces structural phase transformations of the surface layer of mineral particles, which leads to variations in the energetic state of crystals and raises their electrode potential by ~15 mV on average in the region of positive values (pH 6-11). An increase in the electrode potential creates favorable conditions for adsorption of the anion collector and helps amplify the flotation activity of galenite: flotation experiments (pH 10.2) showed an increase in the floatability of galenite, from 76% (without preliminary pulsed treatment) to 86% after 10-30 s of HPEMP treatment for the samples.
    At the same time, it has been found experimentally that pulsed treatment did not cause significant changes in the phase composition, chemical state of the surface atoms and flotation (xanthate) activity of calcite.


    [1] R.T Shui. Semiconducting Ore Minerals (Poluprovodnikovye rudnye mineraly), 1979, Nedra
    [2] A.S Zyubin, T.S. Zyubina, L.V. Yashina and V.I. Shtanov: Oxygen Chemisorption on the PbS(001) Surface: Quantum-Chemical Modeling, Russian Journal of Inorganic Chemistry, 54 (2009), 727-733
    [3] A.L Hagstrom and A Fahlman: The Interaction between Oxygen and the Lead Chalcogenides at Room Temperature Studied by Photoelectron Spectroscopy, Applied Surface Science, 1 (1978), 455-470
    [4] C.M. Eggleston: Initial Oxidation of Sulfide Sites on a Galena Surface: Experimental Confirmation of an Ab-Initio Calculation, Geochimica et Cosmochimica Acta, 61(1997),657-660
    [5] V.A Chanturiya, I.V Filippov, L.O Filippov, M.V Ryazantseva and I.Zh Bunin: Effect of Powerful Electromagnetic Impulses on Surface and Flotation Properties of Carbonate-bearing Pyrite and Arsenopyrite, Journal of Mining Science, 44.5 (2008), 518-530
    [6] T.A Ivanova, I.Zh Bunin and I.A Khabarova: On the Characteristic Properties of Oxidation of Sulfide Minerals Exposed to Nanosecond Electromagnetic Pulses, Bulletin of the Russian Academy of Sciences: Physics, 72.10 (2008), 1326-1329
    [7] V.A Chanturiya, I.Zh Bunin, M.V Ryazantseva, I.V Filippova and E.V Koporulina: Nanosecond Electromagnetic Pulse Effect on Phase Composition of Pyrite and Arsenopyrite Surface, their Sorption and Flotation Properties, Journal of Mining Science, 47.4(2011), 506-513
    [8] V.A Chanturiya, I.Zh Bunin, M.V Ryazantseva and L.O Filippov: Theory and Application of High-Power Nanosecond Pulses to Processing of Mineral Complexes, Mineral Processing and Extractive Metallurgy Review, 32.2 (2011), 105-136
    [9] I.Zh Bunin, V.A Chanturiya, I.A Khabarova and M.V Ryazantseva: Effect of High-Power Nanosecond Pulses on Surface Structure and Flotation Properties of Sphalerite and Chalcopyrite, Processing of Shechtman International Symposium, Cancun, Mexico, 2014. Editor: Florian Kongoli, Publisher: Flogen Star OUTREACH, Vol. 2, MINERAL, Mineral Processing, CD Rom, 305-310.
    [10] V.A Chanturiya, I.Zh Bunin, A.T Kovalev: Selective Disintegration of Finely Disseminated Mineral Complexes under Exposure to High-Power Pulses, Bulletin of the Russian Academy of Sciences: Physics, 69 (2005), 1186-1190
    [11] V.A Chanturiya, K.N Trubetskoi, S.D Victorov and I.Zh Bunin. Nanoparticles in Processes for Disintegration and Breaking-up of Geomaterials, 2006, Moscow, IPKON RAN
    [12] I.Zh Bunin. Theory of Nanosecond Electromagnetic Pulses Effect on Disintegration and Breaking-up Process of Fine-disseminated Mineral Complexes and Noble Metals Recovery from Ores, Synopsis of Grand PhD thesis, 2009, &#1052;oscow, IPKON RAS (MGRI-RSGPU)
    [13] V.A Chanturiya, I.Zh Bunin, A.T Kovalev: Energy Concentration in Electric Discharges between Particles of Semiconducting Sulfide Minerals under the Action of High-Power Nanosecond Pulses, Bulletin of the Russian Academy of Sciences: Physics, 72 (2008), 1053-1056
    [14] V.A Chanturiya, I.Zh Bunin, M.V Ryazantseva and I.A Khabarova: X-Ray Photoelectron Spectroscopy-based Analysis of Change in the Composition and Chemical State of Atoms on Chalcopyrite and Sphalerite Surface before and after the Nanosecond Electromagnetic Pulse Treatment, Journal of Mining Science, 49 (2013), 489-498
    [15] V.A Chanturiya, Y.V Gulyaev, I.Zh Bunin, V.A Vdovin, A.V Korzhenevskii, V.D Lunin and V.A Cherepenin: Synergetic Effect of High-Power Electromagnetic Pulses and Pore Moisture on the Breakdown of Gold-bearing Raw Materials, Transactions (Doklady) of the Russian Academy of Sciences / Earth Science Section, 378 (2001), 372-376
    [16] V.A Chanturiya, I.Zh Bunin, M.V Ryazantseva and I.A Khabarova: Influence of Nanosecond Electromagnetic Pulses on Phase Surface Composition, Electrochemical, Sorption and Flotation Properties of Chalcopyrite and Sphalerite, Journal of Mining Science, 48 (2012), 732-740
    [17] D Brion: Etude par Spectroscopie de Photoelectrons de la Degradation Superficielle de FeS2, CuFeS2, ZnS et PbS a l'Air et dans l'Eau, Appl. Surf. Sci., 5 (1980), 133-152
    [18] D Fornasiero, F.Li, , Ralston, J., et al.: Oxidation of Galena Surfaces: I. X-ray Photoelectron Spectroscopic and Dissolution Kinetics Studies, J. Colloid Interface Sci., 164 (1994), 333-334
    [19] K Laajalehto, R.St.C Smart and J Ralston: STM and XPS Investigation of Reaction of Galena in Air, Appl. Surf. Sci., 64 (1993), 29-39
    [20] V.A Chanturiya, I.Zh Bunin and A.T Kovalev: On the Field-Emission Properties of Sulfide Minerals under High-Power Nanosecond Pulses, Bulletin of the Russian Academy of Sciences: Physics, 71.5 (2007), 646-649
    [21] V.A Chanturiya, I.Zh Bunin and A.T Kovalev: Field-Emission Properties of Sulphide Minerals under High-Power Nanosecond Electromagnetic Pulses, Proceedings of TMS 2008 Annual Meeting, Supplemental: Materials Processing and Properties, TMS2008 - 137th Annual Meeting and Exhibition Supplemental Proceedings: Materials Processing and Propertie, 2008. New Orleans, LA, 2008, Minerals, Metals & Materials Society, 27-32
    [22] V.A Chanturiya, Y.V Gulyaev, I.Zh Bunin, et al.: Use of High-Power Electromagnetic Pulses in Processes of Disintegration and Opening of Rebellious Gold-containing Raw Material, Journal of Mining Science, 37.4 (2001), 427-437
    [23] J Kiehl, C Ben-Azzouz, D Dentel, et al.: Grafting Process of Ethyltrimethoxysilane and Polyphosphoric Acid on Calcium Carbonate Surface, Applied Surface Science, 264 (2013), 864-871
    [24] I.S Pasarín, N Bovet, M Glyvradal, et al.: Atomic Modifications by Synchrotron Radiation at the Calcite-Ethanol Interface, Journal of Synchrotron Radiation, 19.4 (2012), 530-535
    [25] S.L Stipp, Jr.M.F. Hochella: Structure and Bonding Environments at the Calcite Surface as Observed with X-Ray Photoelectron Spectroscopy (XPS) and Low Energy Electron Diffraction (LEED), Geochimica et Cosmochimica Acta, 55.6 (1991), 1723-1736

    Full Text:

    Click here to access the Full Text

    Cite this article as:

    Bunin I, Chanturiya V, Khabarova I, Ryazantseva M, Koporulina E. The Prospects for the Use of High-Power Nanosecond Pulses to Flotation Separation of Sulfides from Rock-Forming Minerals. In: Kongoli F, Silva AC, Arol AI, Kumar V, Aifantis K, editors. Sustainable Industrial Processing Summit SIPS 2015 Volume 10: Mineral & Secondary Battery. Volume 10. Montreal(Canada): FLOGEN Star Outreach. 2015. p. 83-94.