Research on the Gold Ore Leaching in Iodine-Iodide System


Article Preview

Iodine-iodide leaching gold ore is a promising method alternative to cyanide leaching. In this paper, Eh—pH diagram of Au-I--I2-H2O system was established through calculating the equilibrium potentials of the main chemical reactions based on the thermodynamic data of the actual iodide leaching of gold system. Gold ore leaching experiments in iodine-iodide system under different influence factors were carried out to verify the effectiveness of the Eh-pH diagram. The results indicated the diagram of Eh-pH can effectively guide the actual gold ore leaching in iodine-iodide system.



Advanced Materials Research (Volumes 634-638)

Edited by:

Jianmin Zeng, Hongxi Zhu and Jianyi Kong




X. P. Luo et al., "Research on the Gold Ore Leaching in Iodine-Iodide System", Advanced Materials Research, Vols. 634-638, pp. 3227-3233, 2013

Online since:

January 2013




[1] J.C. Yannopoulos: The extractive metallurgy of gold, Van Nostrand Reinhold, New York, (1991).

[2] M. Baghalha, Int. J. Miner. Process. 82(2007)178–186.

[3] P. Lacoste-Bouchet, G. Deschenes, E. Ghali, Hydrometallurgy. 47(1998) 189-203.

[4] R.G. Schultz, Erzmetall. 39(1986) 57-59.

[5] G.H. Kelsall, N.J. Welham, M.A. Diaz, J. Electroanal. Chem. 361(1993) 13-24.

[6] M. Baghalha, Hydrometallurgy. 113-114 (2012) 42-50.

[7] Zhike Wang, Donghui Chen, Liang Chen, Chinese Journal of Rare Metals (In chinese). 30(2006) 193-196.

[8] Guichun Li, Huiping Wang, Journal of Heilongjiang Institute of Science & Technology (In chinese). 15(2005) 339-342.

[9] F. Marken: The electrochemistry of halogens, in: A.J. Bard, M. Stratmann, F. Scholz, C.J. Pickett (Eds), Encyclopedia of Electrochemistry: Inorganic Chemistry, Wiley-VCH, 2006, 291-297.

[10] A. Davis, T. Tran, D.R. Young: Hydrometallurgy. 32(1993)143-159.

[11] A.J. Bard, R. Parsons, J. Jordan, Standard Potentials in Aqueous Solutions, Marcel Dekker, New York, (1985).

[12] Qinghai Ge, Xianping Luo, Shuhua Xiong, Minghui Xie, Leyong Jiang, Gold (In chinese). 27(2006) 34-38.

[13] A. Zanjani, M. Baghalha, Hydrometallurgy. 97(2009) 119-125.