2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 8: Non-ferrous, Rotary Kiln, Ferro-alloys, Rare Earth, Coal

Editors:Kongoli F, Xueyi G, Shumskiy V, Kozlov P, Capiglia C, Silva AC, Turna T
Publisher:Flogen Star OUTREACH
Publication Year:2016
Pages:350 pages
ISBN:978-1-987820-50-8
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
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    Research and development of technogenic wastes recycling with recovery of Zn, Pb&Sn

    Pavel Kozlov1; Yuriy Reshetnikov2;
    1CHELYABINSK ZINC PLANT, Chelyabinsk, Russian Federation; 2PJSC CHELYABINSK ZINC PLANT, Chelyabinsk, Russian Federation;
    Type of Paper: Regular
    Id Paper: 362
    Topic: 40

    Abstract:

    PJSC Chelyabinsk Zinc Plant processes the dust of copper-smelting industry. Copper plant dust processing differs from EAF-dust processing by charge preparation. There is no need to separate tin from lead, so the finished product is lead concentrate.<br />The main detail of the technology is the introduction of two-stage Waelz process. Waelz process 1 for the whole separation of volatile (Zn, Pb, Sn) and non-volatile components (Fe, Cu). Waelz process 2 allows Waelz-oxide purification from harmful impurities (Cl, F, As) and separation of tin from the lead. The new technology has expanded resource base of non-ferrous and ferrous metallurgy and improved the environmental situation in the regions. <br />New technologies implementation allowed:<br />- to recover more than 100 000 t of non-ferrous and ferrous metallurgy wastes that were not processed before;<br />- to get more than 10 000 t of Zn, 4 000 t of Pb and tin in the form of lead and tin concentrates out of them and also excluding these metals form the raw material for ferrous metallurgy – Zn-containing slag and non-ferrous metallurgy – copper slag. <br />Decision of ecological issues:<br />- ferrous and non-ferrous metallurgy wastes included into recycling with land areas rescue and the possibility not to pollute ground water with heavy metals;<br />- emissions reducing during Waelz-process from 10 mg/nm3 (project data) to 0.4÷0,7mg/m3;<br />- greenhouse gases emission reducing (carbon dioxide) for 2 mln m3 a year thanks to the usage of the improved construction of waste-heat boiler and stream production for zinc production technology.

    Keywords:

    Metals recycling; Operations; Technology; efficiency; emissions; waste;

    References:

    [1] P. Kozlov, Velts-protsess (Waelz-process), 2002, Moscow, 176.
    [2] P. Kozlov, Mastering of processes of recycling of anthropogenic wastes of non-ferrous metallurgy), Tsvetnaya metallurgiya, 2 (2014), 45-52
    [3] P. Kozlov, V.Vyatkin, D. Ivakin, Proceedings of Fundamental researches and applied developments of processes of utilization and processing of anthropogenic formations, Development of technology of extraction of zinc, tin and lead from secondary anthropogenic raw materials, 2014, 552

    Cite this article as:

    Kozlov P and Reshetnikov Y. Research and development of technogenic wastes recycling with recovery of Zn, Pb&amp;Sn. In: Kongoli F, Xueyi G, Shumskiy V, Kozlov P, Capiglia C, Silva AC, Turna T, editors. Sustainable Industrial Processing Summit SIPS 2016 Volume 8: Non-ferrous, Rotary Kiln, Ferro-alloys, Rare Earth, Coal. Volume 8. Montreal(Canada): FLOGEN Star Outreach. 2016. p. 291-300.