Abstract
This paper is devoted to the investigation of fine dust hydrometallurgical treatment by a new reagent – oxyethylidenediphosphonic acid, commonly known as OEDP. Dust leaching tests were made following an experimental design plan. Varied experimental parameters included liquid-to-solid ratio (X1) from 3 to 7 and process temperature (X2) from 25 °C to 80 °C. Extraction of lead (main component), zinc, copper, and iron has been monitored during the tests. Response surfaces for leaching optimization were designed using STATISTICA 7.0 software. These planes describe temperature and liquid-to-solid ratio dependences of lead, zinc, copper, and iron extraction in media. Optimal parameters were specified for alkaline leaching of lead and zinc from fine dust of copper smelting plants. These parameters are initial concentration of OEDP 1.5 mol/l, pH 11–12, l:s = 5:1, and temperature 30–50 °C. At these conditions, the extraction was Pb 96–98%, Zn 15–20%, Fe 1–3%, and Cu 0.05–0.1%.
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Mamyachenkov, S., Anisimova, O., Kolmachikhina, E. (2018). Recovery of Lead and Zinc from Fine Dust of the Copper Smelting Industry Using a Chelating Agent. In: Brebbia, C., Connor, J. (eds) Progress in Materials Science and Engineering. Innovation and Discovery in Russian Science and Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-75340-9_6
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DOI: https://doi.org/10.1007/978-3-319-75340-9_6
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