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Jiangxi Nonferrous Metals Society
ISSN：1674-9669
CN：36-1311/TF
CODEN YJKYA9
Volume 12 Issue 6
Dec.  2021
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WANG Zhe, WANG Jingxiu, LIN Yinhe, YIN Guoliang, LIU Shulan, LUO Lingen. Selective leaching of zinc from basic oxygen steelmaking dust by organic acids[J]. Nonferrous Metals Science and Engineering, 2021, 12(6): 1-8. DOI: 10.13264/j.cnki.ysjskx.2021.06.001
Citation: WANG Zhe, WANG Jingxiu, LIN Yinhe, YIN Guoliang, LIU Shulan, LUO Lingen. Selective leaching of zinc from basic oxygen steelmaking dust by organic acids[J]. Nonferrous Metals Science and Engineering, 2021, 12(6): 1-8. DOI: 10.13264/j.cnki.ysjskx.2021.06.001
shu

Selective leaching of zinc from basic oxygen steelmaking dust by organic acids

  • 1.

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing 100083, China

  • 2.

    Department of Materials and Chemical Engineering, Yibin University, Yibin 644007, Sichuan, China

  • 3.

    Institute of Yibin Tianyuan Group Co., Ltd., Yibin 644007, Sichuan, China

  • 4.

    College of Physical Science and Technology, Tangshan Normal University, Tangshan 063000, Hebei, China

  • 5.

    Resource Application and Alloy Materials Division, China Iron and Steel Research Institute Group, Beijing 100081, China

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  • Received Date: May 28, 2021
  • Published Date: December 30, 2021
    Graphical Abstract
    • Abstract
  • The organic acids leaching process was performed to compare the leaching efficiencies of zinc and iron from a basic oxygen steelmaking dust by oxalic acid, citric acid, acetic acid, propionic acid, butyric acid, and valeric acid and the effect of acid concentration and liquid/solid stoichiometric ratio was further studied. The results showed that the six organic acids had different leaching behaviors for zinc and iron and oxalic acid was easy to form sediment on the dust surface to hinder the leaching. Citric acid had complexing properties, which was conducive to the leaching, but the leaching selectivity of zinc is poor. The leaching selectivity of the other four alkyl acids increases with the increase of carbon chain, and the effect of butyric acid was better. The preliminary optimization of butyric acid leaching led to zinc and iron leaching rate of 51.2% and 0.5%, respectively, and the mass ratio of zinc to iron in the leachate was 12.6. A butyric acid leaching technology was designed to provide a reference for future treatment of zinc-containing steelmaking dust. The high-efficiency selectivity of butyric acid has good potential for application, and it is significant for the steel industries to implement sustainable development strategy.
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    • References (25)
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