Volume 1, Number 1 (2016)
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Home > Journals > SCIREA Journal of Metallurgical Engineering > Archive > Paper Information

Sulfuric acid leaching of sulfide slag of Sarcheshmeh copper reverberatory furnace

Volume 1, Issue 1, October 2016    |    PP. 12-27    |PDF (630 K)|    Pub. Date: October 29, 2016
370 Downloads     2954 Views  

Hossein Aghajani, Materials Engineering Department, University of Tabriz, Tabriz, Iran.
Jalil Vahdati Khaki, Department of Metallurgy and Materials Engineering, Ferdowsi University of Mashhad, Mashhad, Iran.
Masoud Goudarzi, School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Tehran, Iran.
Naser Hosseini, Materials Engineering Department, University of Tabriz, Tabriz, Iran.

Reverberatory furnace slag is a material that is created from metal smelting processes and it is usually assumed as a waste material in these processes. In this research, hydrometallurgical extraction of copper from Sarcheshmeh reverberatory furnace slag has been investigated. Firstly, studies were carried out to determine the chemical composition of the slag by X-Ray Diffraction (XRD) and X-Ray Fluorescence (XRF) analysis. Slag was crushed and sieved by different meshes. Then, sulfuric acid leaching was performed on the slag with +60, +80, +100, +120 and -120 mesh numbers at 27, 40, 65, 80 and 100℃ leaching temperatures, respectively. Leaching solvent concentrations was set as 1.02, 2.04, 3.06, 4.08 and 5.1 mole.liter-1 for 15, 30, 45, 60, 90, 105and 120 minute leaching time and 100, 200, 300 and 400 rpm stirring speed. In order to determine the copper percentage in the leaching solution, Atomic Absorption Spectroscopy (AAS) has been utilized. Also, the leaching mechanism was studied utilizing different kinetic models. Finally, In order to increase the efficiency of the leaching process, the effect of mechanically activation, Ag+ addition (as a catalyst ion) and a roasting process before leaching have been studied. Results showed that the best efficiency was coordinated with -120 mesh particle size, 4.08 mole/liter acid concentration, 80℃, 100 rpm stirring speed. Also, mechanism studies show that the chemical reaction at the interface was the controlling factor and the activation energy for the dissolution reaction was 4.95 kj/mol.

hydrometallurgy; sulfuric acid; reverberatory slag; leaching; kinetics.

Cite this paper
Hossein Aghajani, Jalil Vahdati Khaki, Masoud Goudarzi, Naser Hosseini, Sulfuric acid leaching of sulfide slag of Sarcheshmeh copper reverberatory furnace, SCIREA Journal of Metallurgical Engineering. Vol. 1 , No. 1 , 2016 , pp. 12 - 27 .


[ 1 ] Bipra Gorai, R.K. Jana, Premchand, Characteristics and utilization of copper slag-/a review, Resources, Conservation and Recycling 39 (2003) 299-313.
[ 2 ] O. Herreros, R. Quiroz, E. Manzano, C. Bou, J. Vinals, Copper extraction from reverberatory and flash furnace slags by chlorine leaching, Hydrometallurgy 49 (1998) 87–10.
[ 3 ] Huiting Shen and E. Forssberg, An overview of recovery of metals from slags, Waste Management, 23 (2003) 933–949.
[ 4 ] Philip K. Gbor, Valentina Mokri and Charles Q. Jia, Characterization of smelter slags, Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances and Environmental Engineering, 35(2) (2000) 147-167.
[ 5 ] N. Tshiongo, R K.K. Mbaya , K Maweja, L.C. Tshabalala, Effect of Cooling Rate on base Metals Recovery from Copper Matte Smelting Slags, World Academy of Science, Engineering and Technology 46 (2010).
[ 6 ] N Tshiongo, R K K Mbaya, and K Maweja, Leaching kinetics of Cu, Co, Zn, Pb and Fe from copper smelting slags cooled in different ways after tapping, 6th Southern African Base Metals Conference 2011.
[ 7 ] Gordon M. Ritcey, Solvent Extraction in Hydrometallurgy: Present and Future, TSINGHUA SCIENCE AND TECHNOLOGY, 11 (2006) 137-152.
[ 8 ] H.S. Altundogan, M. Boyrazli, F. Tumen, A study on the sulfuric acid leaching of copper converter slag in the presence of dichromate, Minerals Engineering 17 (2004) 465–467.
[ 9 ] Ewa Rudnik, Lidia Burzyn´ ska, Wanda Gumowska, Hydrometallurgical recovery of copper and cobalt from reduction-roasted copper converter slag, Minerals Engineering 22 (2009) 88–95.
[ 10 ] S.M. Abdel Basir, Mahmoud A. Rabah, Hydrometallurgical recovery of metal values from brass melting slag, Hydrometallurgy 53(1999) 31–44.
[ 11 ] S. Vafaeian , M. Ahmadian , B. Rezaei, Sulfuric acid leaching of mechanically activated copper sulfide concentrate, Minerals Engineering 24 (2011) 1713–1716.
[ 12 ] H. S. Altundogan, F. Tumen, metal recovery from copper converter slag by roasting with ferric sulfate, Hyrometallurgy 44 (1997) 261-267.
[ 13 ] Zhang Yang, Man Rui-lin, Ni Wang-dong, Wang Hui, Selective leaching of base metals from copper smelter slag, Hydrometallurgy 103 (2010) 25–29.
[ 14 ] S. Anand, P. Kanta Rao and P.K. Jena, recovery of metal values from copper converter and smelter slags by ferric chloride leaching, Hydrometallurgy, 5 (1980) 355—365.
[ 15 ] Lal Bihari Sukla, RaN Narayan Kar & Vinita Panchanadikar, Leaching of copper converter slag with Aspergillus niger culture filtrate, BioMetals 1992, 5,169-172.
[ 16 ] A.N. Banza, E. Gock, K. Kongolo, Base metals recovery from copper smelter slag by oxidizing leaching and solvent extraction, Hydrometallurgy 67 (2002) 63–69.
[ 17 ] I.M. Ahmed, A.A. Nayl, J.A. Daoud, Leaching and recovery of zinc and copper from brass slag by sulfuric acid, Journal of Saudi Chemical Society (2012). Article in press.
[ 18 ] LEVENSPIEL O. Chemical reaction engineering [M]. New York: Wiley, 1972: 361−371.
[ 19 ] LIU Zhi-xiong, YIN Zhou-lan, HU Hui-ping, CHEN Qi-yuan, Leaching kinetics of low-grade copper ore containing calcium-magnesium carbonate in ammonia-ammonium sulfate solution with per sulfate, Trans. Nonferrous Met. Soc. China 22(2012) 2822−2830.