Recovery of zinc and iron from high iron-bearing zinc calcine by selective reduction roasting

Junwei Han; Wei Liu; Wenqing Qin; Bing Peng; Kang Yang; Yongxing Zheng

Journal of Industrial and Engineering Chemistry, Vol.22, 272-279, February, 2015

DOI10.1016/j.jiec.2014.07.020 Export Citation

Recovery of zinc and iron from high iron-bearing zinc calcine by selective reduction roasting

Junwei Han, Wei Liu^†, Wenqing Qin^†, Bing Peng¹, Kang Yang, and Yongxing Zheng

School of Minerals Processing and Bioengineering, Central South University, 410083 Changsha, Hunan, China
¹Institute of Environmental Science and Engineering, School of Metallurgical Science and Engineering, Central South University, 410083 Changsha, Hunan, China

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A novel method to recover zinc and iron from high iron-bearing zinc calcine by reduction roasting-low acid leaching-magnetic separation was proposed. The effects of roasting and leaching conditions were investigated and their optimum conditions were established. Meanwhile, the mineralogical changes during the processes were characterized by XRD, VSM, SEM and LPSA. The results show the ZnFe2O4 in the calcine was decomposed into ZnO and Fe3O4, and about 92.6% Zn was extracted from the roasted calcine with reporting most of iron as magnetite into the residue. Finally, more than 90% Fe was recovered from the residue by magnetic separation method.

Keywords:Zinc ferrite;Zinc calcine;Reduction roasting;Leaching;Magnetic separation

[References]

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Shawabkeh RA, Hydrometallurgy, 104, 61 (2010)
Li M, Peng B, Chai L, Peng N, Yan H, Hou D, J. Hazard. Mater., 237-238, 323 (2012)
Yan H, Chai LY, Peng B, Li M, Peng N, Hou DK, Miner. Eng., 55, 103 (2014)

[Referenced By]

[1] Balarini JC, Polli LD, Miranda TLS, de Castro RMZ, Salum A, Miner. Eng., 21(1), 100 (2008)

[2] Copur M, Ozmetin C, Ozmetin E, Kocakerim MM, Chem. Eng. Process., 43(8), 1007 (2004)

[3] Jha MK, Kumar V, Singh RJ, Resour. Conserv. Recycl., 33, 1 (2001)

[4] Kim W, Saito F, Powder Technol., 114(1-3), 12 (2001)

[5] Leclerc N, Meux E, Lecuire JM, Hydrometallurgy, 70, 175 (2003)

[6] Chen T, Dutrizac J, J. Miner. Metals Mater. Soc., 56, 46 (2004)

[7] Holloway PC, Etsell TH, Murland AL, Metall. Mater. Trans. B-Proc. Metall. Mater. Proc. Sci., 38, 781 (2007)

[8] Holloway PC, Etsell TH, Murland AL, Metall. Mater. Trans. B-Proc. Metall. Mater. Proc. Sci., 38, 793 (2007)

[9] Tong LF, Miner. Process Extract. Metall., 110, 14 (2001)

[10] Tong LF, Miner. Process. Extract. Metall., 110, 123 (2001)

[11] Wang X, Srinivasakannan C, Duan XH, Peng JH, Yang DJ, Ju SH, Sep. Purif. Technol., 115, 66 (2013)

[12] Zhang Y, Li X, Pan L, Liang X, Li X, Hydrometallurgy, 100, 172 (2010)

[13] Claassen JO, Meyer EHO, Rennie J, Sandenbergh RF, Hydrometallurgy, 67, 87 (2002)

[14] Dyer LG, Richmond WR, Fawell PD, Hydrometallurgy, 119-120, 47 (2012)

[15] Swarnkar S, Gupta B, Sekharan RD, Hydrometallurgy, 42, 21 (1996)

[16] Ju SH, Zhang YF, Zhang Y, Xue PY, Wang YH, J. Hazard. Mater., 192(2), 554 (2011)

[17] Chang Y, Zhai X, Li B, Fu Y, Hydrometallurgy, 101, 84 (2010)

[18] Turan MD, Altundogan HS, Tumen F, Hydrometallurgy, 75, 169 (2004)

[19] Gu Y, Zhang TA, Liu Y, Mu WZ, Zhang WG, Dou ZH, Jiang XL, Trans. Nonferr. Metals Soc. China, 20, s136 (2010)

[20] Li C, Wei C, Xu HS, Li M, Li X, Deng Z, Fan G, Hydrometallurgy, 102, 91 (2010)

[21] Harvey TJ, Yen WT, Miner. Eng., 11(1), 1 (1998)

[22] Nagib S, Inoue K, Hydrometallurgy, 56, 269 (2000)

[23] Shawabkeh RA, Hydrometallurgy, 104, 61 (2010)

[24] Li M, Peng B, Chai L, Peng N, Yan H, Hou D, J. Hazard. Mater., 237-238, 323 (2012)

[25] Yan H, Chai LY, Peng B, Li M, Peng N, Hou DK, Miner. Eng., 55, 103 (2014)