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- W2946476191 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. 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. New technologies implementation allowed: - to recover more than 100 000 t of non-ferrous and ferrous metallurgy wastes that were not processed before; -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. Decision of ecological issues: -ferrous and non-ferrous metallurgy wastes included into recycling with land areas rescue and the possibility not to pollute ground water with heavy metals; -emissions reducing during Waelz-process from 10 mg/nm3 (project data) to 0.4÷0,7mg/m3; -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." @default.
- W2946476191 created "2019-05-29" @default.
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- W2946476191 date "2016-06-08" @default.
- W2946476191 modified "2023-09-23" @default.
- W2946476191 title "Research and development of technogenic wastes recycling with recovery of Zn, Pb&Sn" @default.
- W2946476191 hasPublicationYear "2016" @default.
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