Advertisement

Oxidation Sulfuric Acid Autoclave Leaching of Copper Smelting Production Fine Dust

  • K. A. KarimovEmail author
  • S. S. Naboichenko
  • A. V. Kritskii
  • M. A. Tret’yak
  • A. A. Kovyazin
Article
  • 4 Downloads

Lead, zinc, and arsenic are associated elements in copper ores. Due to deterioration of concentrate quality and involvement in recycling of secondary raw materials, these impurities are increasingly circulated in copper-smelting production, most often collected in fine dusts. Recovery of these dusts for pyrometallurgical processing leads to contamination of black copper with arsenic and lead.

Results are provided for sulfuric acid autoclave leaching of OAO SUMZ dust and dust obtained after recovery melting, containing alongside copper and zinc considerable amounts of lead and arsenic. The effect of temperature and acid concentration on autoclave leaching indices is studied.

Optimum dust leaching parameters are obtained: temperature 160°C, H2SO4 /(Pb+Zn+Cu) = 2.1, \( {P}_{{\mathrm{O}}_2}=0.3\mathrm{MPa} \), τ = 2 h, and with these parameters the maximum degree of leaching for arsenic, copper and zinc is observed.

Direct oxidizing sulfuric autoclave leaching of fine dust makes it possible to extract up to 89% copper and 92% zinc. Arsenic passes into a cake in the form of iron arsenate, which complicates subsequent processing. In order to exclude deposition of arsenic during autoclave leaching it is necessary to remove arsenic from dust where it is present in the form of oxidized compounds, and therefore it is possible to use atmospheric sulfuric acid leaching for its extraction. During two stages of atmospheric and autoclave oxidation leaching, it is possible to extract up to 93% Cu, 96% Zn, and 99% As.

Keywords

autoclave leaching arsenic copper zinc extraction fine dust technogenic raw material 

References

  1. 1.
    M. Nazsri, R. Radzinski, and A. Ghahreman, “Review of arsenic metallurgy: Treatment of arsenical minerals and the immobilization of arsenic,” Hydrometallurgy, 174, 258–281 (2017).CrossRefGoogle Scholar
  2. 2.
    I. É. Makhov, S. V. Mikhailov, L. D. Shishkina, et al., Behavior of Arsenic and Antimony During Pyrometallurgical Production of Copper [in Russian], TsNIIÉItsvetmet, Moscow (1991).Google Scholar
  3. 3.
    A. Jarošíková, V. Ettler, M. Mihaljevič, et al., “Transformation of arsenic-rich copper smelter flue dust in contrasting soils: A 2-year field experiment,” Environ. Pollution, 37, 83–92 (2018).CrossRefGoogle Scholar
  4. 4.
    G. V. Skopov and A. V. Matveev, “Combined treatment of polymetal semiproducts of metallurgical production,” Metallurg., No. 8, 73–76 (2011).Google Scholar
  5. 5.
    G. V. Skopov, V. V. Belyaev, and A. V. Matveev, “Removal from circulation and individual treatment of dust of electric filters of the Vanyukov OAO Central Ural Copper Smelting Plant,” Tsvet. Met., No. 8, 55–59 (2013).Google Scholar
  6. 6.
    V. I. Neustroev, K. A. Karimov, et al., “Autoclave leaching of mattes from smelting metallurgical production semiproducts,” Tsvet. Met., No. 8, 75–78 (2013).Google Scholar
  7. 7.
    E. N. Selivanov, G, V. Skopov, R. I. Gulyaeva, and A. V. Matveev, “Substance composition of dust of electric filter of the Vanyukov OAO Central Ural Copper Smelting Plant,” Metallurg., No. 5, 92–95 (2014).Google Scholar
  8. 8.
    I. N. Maslenistkii, V. V. Dolivo-Dobrovol’skii, and G. N. Dobrokhotov, Autoclave Processes in Nonferrous Metallurgy [In Russian], Metallurgiya, Moscow (196i).Google Scholar
  9. 9.
    A. J. Monhemius and P. M. Swash, “Removing and stabilizing As from copper refining circuits by hydrothermal processing,” JOM, 51, 30–33 (1999).CrossRefGoogle Scholar
  10. 10.
    XU Zhi-feng, LI Qiang, and NIE Hua-ping, “Pressure leaching technique of smelter dust with high-copper and high-arsenic,” Trans. Nonferrous Met. Soc. China, 20, 176–181 (2010).CrossRefGoogle Scholar
  11. 11.
    K. A. Karimov and S. S. Naboichenko, “Sulfuric acid leaching of dust of copper smelting production with a high arsenic content,” Metallurg., No. 4, 99–102 (2016)Google Scholar
  12. 12.
    A. Jarošíková, V. Ettler, M. Mihaljevič, et al., “Characterization and pH-dependent environmental stability of arsenic trioxide containing copper smelter flue dust,” J. Environ. Management, 209, 71–80 (2018).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • K. A. Karimov
    • 1
    Email author
  • S. S. Naboichenko
    • 1
  • A. V. Kritskii
    • 1
  • M. A. Tret’yak
    • 1
  • A. A. Kovyazin
    • 1
  1. 1.FGAOU VO B. N. El’tsin Ural Federal UniversityEkaterinburgRussia

Personalised recommendations