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Copper-Sulfate Pentahydrate as a Product of the Waste Sulfuric Acid Solution Treatment

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Abstract

The aim of this study is synthesis of copper-sulfate pentahydrate from the waste sulfuric acid solution-mother liquor generated during the regeneration process of copper bleed solution. Copper is removed from the mother liquor solution in the process of the electrolytic treatment using the insoluble lead anodes alloyed with 6 mass pct of antimony on the industrial-scale equipment. As the result of the decopperization process, copper is removed in the form of the cathode sludge and is precipitated at the bottom of the electrolytic cell. By this procedure, the content of copper could be reduced to the 20 mass pct of the initial value. Chemical characterization of the sludge has shown that it contains about 90 mass pct of copper. During the decopperization process, the very strong poison, arsine, can be formed, and the process is in that case terminated. The copper leaching degree of 82 mass pct is obtained using H2SO4 aqueous solution with the oxygen addition during the cathode sludge chemical treatment at 80 °C ± 5 °C. Obtained copper salt satisfies the requirements of the Serbian Standard for Pesticide, SRPS H.P1. 058. Therefore, the treatment of waste sulfuric acid solutions is of great economic and environmental interest.

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Acknowledgments

The authors would like to acknowledge the financial support of the Ministry of Education and Science of the Republic of Serbia, for project no. TR37001.

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Authors and Affiliations

  1. Mining and Metallurgy Institute, 19210, Bor, Serbia

    Radmila Marković & Ljiljana Avramović

  2. Institute of Chemistry, Technology and Metallurgy, University of Belgrade, 11000, Belgrade, Serbia

    Jasmina Stevanović, Dragutin Nedeljković & Jasna Stajić-Trošić

  3. Institute of Technical Sciences of the Serbian Academy of Science and Arts, 11000, Belgrade, Serbia

    Branimir Jugović

  4. Faculty of Technology and Metallurgy, University of Belgrade, 11000, Belgrade, Serbia

    Milica Gvozdenović

Authors
  1. Radmila Marković
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  2. Jasmina Stevanović
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  3. Ljiljana Avramović
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  4. Dragutin Nedeljković
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  5. Branimir Jugović
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  6. Jasna Stajić-Trošić
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  7. Milica Gvozdenović
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Corresponding author

Correspondence to Jasmina Stevanović.

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Marković, R., Stevanović, J., Avramović, L. et al. Copper-Sulfate Pentahydrate as a Product of the Waste Sulfuric Acid Solution Treatment. Metall Mater Trans B 43, 1388–1392 (2012). https://doi.org/10.1007/s11663-012-9721-8

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  • DOI: https://doi.org/10.1007/s11663-012-9721-8

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