Published date: Dec 31 2020

Journal Title: KnE Materials Science

Issue title: IV Congress “Fundamental Research and Applied Developing of Recycling and Utilization Processes of Technogenic Formations” Volume 2020

Pages: 214–220

DOI: 10.18502/kms.v6i1.8070

Konstantin L. TimofeevK.Timofeev@elem.ruNon-state Higher Educational Establishment «UMMC Technical University», Verkhnyaya Pyshma, Sverdlovsk Region, Russia

Alexey A. KorolevJSC «Uralelektromed», Verkhnyaya Pyshma, Sverdlovsk Region, Russia

Gennady I. MaltsevJSC «Uralelektromed», Verkhnyaya Pyshma, Sverdlovsk Region, Russia

During the processing of lead containing products and polymetallic alloys the recovery of tin and antimony from technology of lead production is carried out by oxidation refining of decopperized lead with rich oxides (Sn, Sb ≥ 20%).Tin oxides are melted in a short-drum furnaces to lead bullion (> 96% Pb) and tin-rich (> 20% Sn) slag. The slag is melted in an ore-smelting furnace to obtain a Sn-Pb alloy of next composition, %: 56.1 Sn, 18.2 Pb, 14.6 Sb, 6.9 As, which is refined by vacuum distillation with production of rough tin (Sn ≥ 90%). The additional profit of rough tin obtainment (∼310 tons/year), compared with sales of tin slag, is about ∼1.3 million $/year.

Keywords: lead, tin, antimony, melting, vacuum distillation

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