THE CONNECTION CALCINATION AND SULPHATION WITH THE THERMAL BEHAVIOR OF CHALCOPYRITE ORE CONCENTRATE

Abstract

The thermal behavior of chalcopyrite ore concentrate was used thermogravimetric analysis (TG) coupled by differential thermal analysis (DTA). The thermal analysis were done up to 900^oC from 0^oC at different heating rates (2, 5, 10, 15 and 20 ^oC /min) under air atmosphere. The ore was calcined at 30, 60, 90 min and 350, 400, 450, 600, and 800^oC and investigated sulphation proportions. The products of obtained calcination were characterized by XRD, SEM/EDS, FTIR analysis. Based on the conclusions obtained was confirmed the thermal behavior of the ore. 

Keywords

• Chalcopyrite,thermal analysis,calcination,sulphation,characterization

References

1. Copur, M., Kızılca, M., Kocakerim, M.M. 2015, “Determination of the optimum conditions for copper leaching from chalcopyrite concentrate ore using taguchi method”. Chemical Engineering Communications, vol. 202, no 7, 927-935.
2. Gulfen, M., Aydın, A.O. 2010, “Dissolution of copper from a primary chalcopyrite ore calcined with and without Fe2O3 in sulphuric acid solution”, Indian Journal of Chemical Technology, vol. 17, 145-149.
3. Mikhlin, Y.L., Y.V. Tomashevich, Asanov, I. P., Okotrub, A.V., Varnek, V.A., Vyalikh, D.V. (2004). Spectroscopic and electrochemical characterization of the surface layers of chalcopyrite (CuFeS2) reacted in acidic solutions. Applied Surface Science, vol. 225,395–409.
4. Jain, R.C., Madhavan, S., Acharjee, D.K., Gupta Sen P. 1982,” Optimum performance data for the leaching of roasted chalcopyrite concentrate in a jet contactor”, The Canadian Journal of Chemical Engineering, vol. 60, 516-521.
5. Parasad, S., Pandey, B.D., 1998,” Alternative processes for treatment of chalcopyrite -a review”. Mineral Engineering, vol 11, no.8, 763781.
6. Parasad,S., Pandey,B.D., 1999. Thermoanalytical studies on copper-iron sulphides. Journal of Thermal Analysis and Calorimetry, vol. 58, 625-637.
7. Sargsyan, L.E., Hovhannisyan, A. M. 2010a, “Actived sulfating roasting of the chalcopyrite concentrate for sulfuric-acid leaching”, Russian Journal of Non-Ferrous Metals, vol. 51, 386-388.
8. Sargsyan, L.E., Hovhannisyan, A. M. 2010b, “Investigation of chalcopyrite cuprum concentrate coasting by thermogravimetric and differential-thermal analysis”, Metallurgical and Minning Industry, vol.2, no. 3, 225-229.

9. Sokić,M., Ilić, I., Źivković, D., Vućkovik N. 2008, “Investigation of mechanism and kinetics of chalcopyrite concentrate oxidation process”. Metalurgija, vol. 47, 109-113.
10. Zhao Y., Hou Y., Cui Y., Liang H., Li L. 2015,” Recovery of Copper from Copper Sulfide Concentrate by Sulfation Roasting”. International Journal of Nonferrous Metallurgy, vol. 4, 9-13.