Journal of Northeastern University(Natural Science)

Journal of Northeastern University ›› 2006, Vol. 27 ›› Issue (1): 61-64.DOI: -

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Effect of adding anode mud obtained from zinc electrowinning on zinc sulphide leaching process

Zhao, Yong (1); Jiang, Kai-Xi (2); Wang, De-Quan (1); Guo, Ya-Hui (3)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China; (2) Beijing General Research Institute of Mining and Metallurgy, Beijing 100044, China; (3) Huludao Zinc Smelter, Huludao 125003, China
  • Received:2013-06-23 Revised:2013-06-23 Online:2006-01-15 Published:2013-06-23
  • Contact: Zhao, Y.
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Abstract: In the hot-acid leaching process of roasted zinc dust, the ferric ion obtained from ZnFe2O4 dissolution was used as oxidant to leach ZnS contained in the roasted dust. To improve the leaching efficiency, the effect of adding anode mud obtained from zinc electrowinning on zinc leaching was investigated, of which the leaching conditions including dose of anode mud, temperature, H2O4 concentration and reaction time were tested. The results indicated that MnO2 in the anode mud is favorable to the oxidation leaching of ZnS in roasted dust. The leaching efficiency of zinc will therefore increase from 94% to 97% if the Mn dose is 4% of roasted dust in anode mud under optimum conditions.

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