A Study on the Optimum Conditions of the Cementation of Copper in Chlorination Solution of Chalcopyrite Concentrate by Iron Scraps

Hakan Temur, Ahmet Yartaşı, M. Muhtar Kocakerim

Öz


Present study aims an experimental design based on the approach of Taguchi method to optimize of cementation of copper in chlorination solutions of chalcopyrite concentrate neutralized with oxidized copper ore by iron scraps. The concentrations of Fe3+, Cu2+, H+, SO 2- and Cl-ions in the chlorination solution obtained under predetermined optimum conditions were 14.6, 4.0, 2.6, 2.2 and 124.3 gmL-1, respectively.

The ranges of experimental parameters were between 20-40 oC for reaction temperature, C/5-C/15 g.L-1 for concentration of leach solution, 300-600 rpm for stirring speed and 20-60 min for reaction time. Where, C is the concentration of the original chlorination solution.

After pH of the chlorination solution was set to 1.5 by adding oxidized copper ore, the cementation was carried out with iron scraps and the optimum conditions were found to be as follows: reaction temperature 40 oC, concentration of leach solution C/5 g.L-1, stirring speed 450 rpm; and reaction time 40 min. Under these conditions, the percentage of copper obtained by cementation from aqueous solution was 98.35 %.


Tam Metin:

PDF

Referanslar


Dönmez, B., Ekinci, Z., Çelik, C. and Çolak, S. “Optimization of the chlorination of gold in decopperized anode slime in aqueous medium”, Hydrometallurgy, 52, 81-90, (1999).

Sedzimir, J.A. “Precipitation of metals by metals(cementation)-kinetics, equilibra.”

Hydrometallurgy, 64, 161-167, (2002).

Sahoo, P.K. and Rath, P.C. “Recovery of lead from complex sulphide leach residue by cementation with iron,” Hydrometallurgy. 20, 169-177, (1988).

Annamalai, V. and Murr, L.E. Influence of deposit morphology on the kinetics of copper cementation on pure iron, Hydrometallurgy. 4, 57-82, (1979).

Stefanowicz, T., Osinska, M. and Napieralska-zagozda, S. “Copper recovery by the cementation method”, Hydrometallurgy, 47, 69-90, (1997).

Nadkarni, R. M. and Wadsworth, M. E. “Kinetic study of the cementation of copper with iron. In: Advances in Exraction Metallurgy”, IIM., London, 919-941, (1976).

Paul, R.L. and Howarth,. “Cementation of gold onto zinc from concentrated aurocyanide electrolytes”, Mintek Rev., 5, 11-19, (1986).

Chaudhury, G.R.and Bhattacharya, I.N. “Cementation of cobalt, nickel and cadmium in ammonical mediumusing zinc metal”, Metall. Trans. (20B), 547-550, (1989).

Dreher, T. M., Nelson, A., Demopoulos G. P. and Filippou, D. “The kinetics of cobalt removal by cementation from an industrial zinc electrolyte in the presence of Cu, Cd, Pb, Sb and Sn additives”. Hydrometallurgy, 60, 105–116, (2001).

Hsu, Y.J., Kim, T and Tran, T., “Electrochemical study on copper cementation from cyanide liquors using zinc”, Electrochimica, 1617-1625, (1999).

Sulka, G.D. and Jaskula, M., “Study of the kinetics of the cementation of silver ions onto copper in a rotating cylinder system from acidic sulphate solutions.” Hydrometallurgy. 64, 13-33, (2002).

Schwartz, L.D. and Etsell, T.H. “The cementation lead from ammonium sulphate solution” Hydrometallurgy. 47, 273-279, (1998).

Sahoo, P. K. and Rao, K.S. “Cementation of copper from complex sulphide leach liquor”, Hydrometallurgy. (8), 223-229, (1982).

Groves, R.D. and Smith P.B., “Reactions of copper sulfide minerals with chlorine in an aqueous system”, U.S. Bur. Mines, Report of Inv., No:7801, 10 p,(1973).

Çolak, S., Alkan, M. and Kocakerim, M.M., “Dissolution Kinetics of Chalcopyrite Containing Pyrite in Water Saturated with Chlorine”, Hydrometallurgy, 18, 183-193, (1987).

Abalı, Y., Çolak, S. and Yapıcı, S. “The optimization of the dissolution of phosphate rock with Cl2-SO2 gas mixtures in aqueous medium”. Hydrometallurgy, 46, 27, (1997).

(17) Ata, O.N., Çolak, S., Çopur, M., and Çelik, C., “Determination of optimum conditions for boric acid extraction with carbon dioxide gas in aqueous media from colemanite containing arsenic”, Ind. Eng. Chem. Res., 39, 488-493, (2000).

Ata, O. N., Çolak, S., Ekinci, Z..and Çopur, M., “Determination of the optimum conditions for leaching of malachite ore in H2SO4 solutions”, Chem.Eng. Tech., 24, 409, (2001).

(19) Beşe, A.V., Ata, O.N., Çelik, C and Çolak, S., “Determination of optimum conditions of dissolution of copper in converter slag with chlorine gas in aqueous media.” Chem. Eng. and Processing, 42, 291-298, (2003).

Çopur, M., Pekdemir, T., Çelik, C. and Çolak, S.Determination of the optimum conditions for the dissolution of stibnite in HCl solutions. Ind. Eng.Chem.Res., 36, 682, (1997).

Çopur, M., “An optimization study of dissolution of Zn and Cu in ZnS concentrate with HNO3 solutions” Chem. Biochem., Eng. Q. 15 (4), 191-197, (2002).

Dönmez, B., Çelik, Ç., Çolak, S. and Yartaşı, A.The dissolution optimization of copper from anod slime in H2SO4 solutions. Ind. Eng. Chem. Res. 37, 3382-3387, 1998.

Temur H., “Sülfürlü ve Oksitli Bakır Cevherlerinden Bakır Üretimi” Yayınlamamış Doktora Tezi, Atatürk Üniversitesi, Erzurum.

Gülensoy, H., “Kompleksometrinin Esasları ve Kompleksometrik Titrasyonlar”,

Fatih Yayınevi Matbaası, İstanbul , s:259, (1984).

Phadke, M. S. “Quality Engineering Using Robust Design”, Prentice Hall: New Jersey, s: 61-292, (1989).

Phadke, M. S., Kackar, R.N., Speeney, D.D. and Grieco, M.J. “Off-line quality control in integrated circuit fabrication using experimental design”, The Bell System Technical Journal, 62, 1273, (1983).

Taguchi, G., “System of Experimental Design, Quality Resources”, New York, 108, (1987).

Biswas, A.K. and Davenport, W.G., “Extractive Metallurgy of Copper” Pergamon Press, England, 272-273, (1980).


Refback'ler

  • Şu halde refbacks yoktur.


Telif Hakkı (c) 2016 Hakan Temur, Ahmet Yartaşı, M. Muhtar Kocakerim

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.