2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 5: Vanyukov Intl. Symp. / Non-ferrous & KIVCET

Editors:Kongoli F, Kozlov P, Tsymbulov L, Fedorov A, Shumskiy V
Publisher:Flogen Star OUTREACH
Publication Year:2015
Pages:310 pages
ISBN:978-1-987820-28-7
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
CD-SIPS2015_Volume
< CD shopping page

    Temperature Effect on Copper Losses to Slag with Colemanite Addition at Fixed Oxygen Partial Pressure

    Ahmet Geveci1; Aydin Rusen2; Yavuz Ali Topkaya1;
    1METU, Ankara, Turkey; 2KARAMANOGLU MEHMETBEY UNIVERSITY, Karaman, Turkey;
    Type of Paper: Regular
    Id Paper: 157
    Topic: 6

    Abstract:

    Depending on the process conditions, considerable amount of copper (between 0.7 and 2.3% Cu) is lost to slag in copper matte smelting stage. Temperature is one of the factors affecting the copper losses to slag during this step. Therefore, in this study, temperature effect on copper losses to slag with colemanite (a boron compound; 2CaO.3B2O3.5H2O) addition as flux were investigated at controlled partial pressure of oxygen obtained by mixture of CO-CO2 gasses. A series of experiments were performed with flash furnace slag (FFS) and matte (FFM) provided by Eti Copper Co. (EBI) at 1200oC, 1250oC and 1300oC for 2 hours at fixed Po2 of 10-9 atm. With an increase in temperature of the system, a decrease in the viscosity of slag which led to the speeding up of settling rate of matte particles in the slag was expected. Experimental results indicated that increasing not only the temperature but also colemanite additions caused a decrease in copper content of slag down to 0.29%.

    Keywords:

    Copper; Slag; Smelting;

    References:

    [1] M. E. Schlesinger, M. J. King, A. W. Davenport, K. C. Sole, Extractive Metallurgy of
    Copper, Elsevier, Oxford, UK, 2011.
    [2] H. Jalkanen, J. Vehvilainen, J. Poijarvi, Copper in Solidified Copper Smelter Slag, Scand. J. Metall. 2003, 32, 65.
    [3] J. M. Toguri, N. J. Themelis, P. H. Jennigs, A Review of Recent Studies on Copper Smelting, Can. Metall. Q. 1964, 3, 199.
    [4] A. Ru&#351;en, A. Geveci, Y. A. Topkaya, B. Derin, Investigation of Effect of Colemanite Addition on Copper Losses in Matte Smelting Slag, Can. Metall. Q. 2012, 51, 157.
    [5] I. Imris, M. Sánchez, G. Achurra, Copper Losses to Slags Obtained from El-Teniente Process, Miner. Process. Extr. Metall. 2005, 114, 135.
    [6] R. Sridhar, J. M. Toguri, S. Simeonov, Copper Losses and thermodynamic Considerations in Copper Smelting, Metall. Mater. Trans. B 1997, 28, 191.
    [7] J. M. Toguri, N. H. Santander, The Solubility of Copper in Fayalite Slags at 1300oC, Can. Metall. Q. 1969, 8, 167.
    [8] R. Altman, H. H. Kellogg, Solubility of Copper in Silica-saturated Iron Silicate Slag, Trans. Inst. Min. Met. C 1972, 81, 1.
    [9] J. C. Yannopoulas, Control of Copper Losses in Reverberatory Slags - A Litearure Review, Can. Metall. Q. 1971, 10, 291.
    [10] P. J. Mackey, The Physical Chemistry of Copper Smelting Slags - A Review, Can. Metall. Q. 1982, 21, 221.
    [11] J. Kowalczyk, W. Mroz, A. Warczok, T. A. Utigard, Settling of Copper Drops in Molten Slags, Metall. Mater. Trans. B 1995, 26, 1217.
    [12] B. Jung, Characteristic of High Temperature Viscosity in Solid Waste Incineration Ash, Environ. Eng. Res. 2003, 8, 236.
    [13] A. Geveci, in 5.th Sci. Congr., Turkish Scientific And Research Council, Ankara, 1975,
    pp. 289–305.
    [14] M. Timucin, N. Sevinc, Y. A. Topkaya, H. Eric, Report; Use of Colemanite in the Production of Iron and Steel, Ankara, 1986.
    [15] E. Ozmen, L., Inger, in Sohn Int. Symp., TMS, San Diego, 2006, pp. 299–306.
    [16] Y. Lu, G. Zhang, M. Jiang, Effects of B2O3, on Properties of Low Floride Content Mould flux for Thin Slab Continuous Casting, Adv. Mater. Res. 2011, 233, 805.
    [17] A. Rü&#351;en, A. Geveci, Y. A. Topkaya, Minimization of Copper Losses to Slag in Matte Smelting by Colemanite Addition, Solid State Sci. 2012, 14, 1702.
    [18] K. H. Obst, J. Stradtman, The Influence of Lime and Synthetic Lime Products on Steel Production, J. South African Inst. Min. Metall. 1972, January, 158.
    [19] M. Sek, A Aso, Y. Okubo, Development of Dusting Prevention Stabilizer for Stainless Steel Slag, Kawasaki Steel Tech. Rep. 1986, 15, 16.
    [20] C.H.P. Lupis, Chemical Thermodynamics of Materials, Elsevier, Amsterdam, 1983.
    [21] “Nernst Equation,” can be found under http://www.cof.com.au/Nernst.shtml.
    [22] A. Geveci, Equilibrium Relations between Liquid Iron-Copper Matte, Liquid Metal and
    Slag, Ph.D. Thesis, Middle East Technical Uni., 1972.
    [23] M. N. Saridede, Assesment of Slag in Fire Refining Process, M.Sc.Thesis, Y&#305;ld&#305;z Technical University, 1994.

    Full Text:

    Click here to access the Full Text

    Cite this article as:

    Geveci A, Rusen A, Topkaya Y. Temperature Effect on Copper Losses to Slag with Colemanite Addition at Fixed Oxygen Partial Pressure. In: Kongoli F, Kozlov P, Tsymbulov L, Fedorov A, Shumskiy V, editors. Sustainable Industrial Processing Summit SIPS 2015 Volume 5: Vanyukov Intl. Symp. / Non-ferrous & KIVCET. Volume 5. Montreal(Canada): FLOGEN Star Outreach. 2015. p. 253-260.