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2014 | 16 | 4 | 80-86
Tytuł artykułu

Behavior of arsenic in hydrometallurgical zinc production and environmental impact

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The presence of arsenic in zinc sulphide concentrates is particularly harmful, because it creates problems in zinc electrolysis. The main source of arsenic in non-ferrous metallurgy is arsenopyrite (FeAsS). In oxidative roasting of zinc concentrates, FeAsS oxidizes to arsenic oxides (As2O3, As2O5). In this connection a natural FeAsS was examined, and also the distribution of arsenic in the products of the roasting process, the cycle of sulphuric acid obtaining and the leaching of zinc calcine were studied. The arsenic contamination of soils in the vicinity of nonferrous metals smelter KCM SA, Plovdiv, Bulgaria as a result of zinc and lead productions has been studied.
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Opis fizyczny
  • Paisii Hilendarski University of Plovdiv, Department of Chemical Technology, 24 Tsar Asen St., Plovdiv 4000, Bulgaria,
  • Paisii Hilendarski University of Plovdiv, Department of Chemical Technology, 24 Tsar Asen St., Plovdiv 4000, Bulgaria
  • KCM SA, Asenovgradsko Shosse, Plovdiv 4009, Bulgaria
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