Recovery of Valuable Metals from Zinc Plant Residues by Two-Stage Selective Atmospheric Leaching Process

Abstract:

A hydrometallurgical process was used for selectively extraction of valuable metals from zinc plant residues. The process includes the following two steps. (1) The zinc plant residue is treated by sulfuric acid atmospheric leaching process with KMnO4 as oxidatant to selectively dissolve zinc while leaving most (above 98 pct) of indium and germandium in the iron residues. (2) The iron residues are treated by acidic atmospheric leaching process with NaClO3 as oxidant to dissolve indium and germanium. The valuable metals of indium and germanium in the second leaching solution can be reclaimed by further treatment. The optimum operating parameters of the first stage and the second stage were established by conditional tests. The experimental data indicated that under the conditions employed the zinc extraction in the first stage was above 95%, and the leaching percentage of indium and germanium in the second stage reached 91.6% and 90.7%, respectively.

• Periodical: Advanced Materials Research (Volumes 396-398)
• Pages: 552-555
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.396-398.552
• Online since: November 2011
• Authors: Cun Xiong Li, Chang Wei, Hong Sheng Xu, Zhi Gan Deng, Ji Qiang Liao, Xin Bing Li, Min Ting Li
• Keywords: Germanium, Indium, Two-Stage Atmospheric Leaching, Zinc, Zinc Plant Residues

References

[1] A.P. Pavia. Recovery of indium from aqueous solutions by solvent extraction. Separation Science and Technology, Vol.36 (2001), p.1395–1419.

DOI: 10.1081/ss-100103878

[2] A.M. Alfantazi, R.R. Moskalyk. Processing of indium: a review. Minerals Engineering, Vol.16 (2003), p.687–694.

DOI: 10.1016/s0892-6875(03)00168-7

[3] R. Höll, M. Kling, E. Schroll. Metallogenesis of germanium - A review. Ore Geology Reviews, Vol. 30 (2007), p.145–180.

DOI: 10.1016/j.oregeorev.2005.07.034

[4] S.M. Javad Koleini, Hossein Mehrpouy, Kamal Saberyan, Mahmoud Abdolahi. Extraction of indium from zinc plant residues. Minerals Engineering, Vol. 23 (2010), pp.51-53.

DOI: 10.1016/j.mineng.2009.09.007

[5] M. Kul, Y. Topkaya. Recovery of germanium and other valuable metals from zinc plant residues. Hydrometallurgy, Vol. 92 (2008), p.87–94.

DOI: 10.1016/j.hydromet.2007.11.004

[6] D.D. Harbuck. Increasing germanium extraction from hydrometallurgical zinc residues. Minerals and Metallurgical Processing, Vol. 10 (1993), p.1–4.

DOI: 10.1007/bf03402990

[7] LI Xuan-hai, ZHANG Yan-juan, QIN Quan-lun,YANG Jian, WEI Yan-song. Indium recovery from zinc oxide flue dust by oxidative pressure leaching, Trans. Nonferrous Met. Soc. China, Vol. 20(2010), pp.141-145.

DOI: 10.1016/s1003-6326(10)60029-5

[8] S. Murao, M. Deb, M. Furuno. Mineralogical evolution of indium in high grade tinpolymetallic hydrothermal veins – a comparative study from Tosham, Haryana state, India and Goka, Naegi district, Japan. Ore Geology Reviews, Vol. 33(2008), p.490–504.

DOI: 10.1016/j.oregeorev.2007.02.004

[9] W.D. Sinclair, G.J.A. Kooiman, D.A. Martin, I.M. Kjarsgaard. Geology, geochemistry and mineralogy of indium resources at Mount Pleasant, New Brunswick, Canada. Ore Geology Reviews, Vol. 28 (2006), p.123–145.

DOI: 10.1016/j.oregeorev.2003.03.001