Extraction of Zinc and Arsenic from Metallurgical Furnace Dust

Millions of tons of dust produced in the process of gas cleaning are accumulated in dumps located near metallurgical plants. Such dust contains harmful impurities (Zn, As, Pb, and P), thus its recycling by the agglomeration method can lead to either environmental contamination or furnace damage. Hen...

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Bibliographic Details
Published inJOM (1989) Vol. 73; no. 11; pp. 3588 - 3596
Main Authors Maiorova, A. V., Kulikova, T. V., Shubin, A. B.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.11.2021
Springer Nature B.V
Subjects
Arsenic
Chemistry/Food Science
Dust
Earth Sciences
Efficiency
Engineering
Environment
Extractive metallurgy
Ferric hydroxide
Fluorides
Hydrochloric acid
Hydrometallurgy
Impurities
Iron
Leaching
Liquid phases
Methods
Physics
Plasma
Recycling
Technical Article
Zinc
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Summary:Millions of tons of dust produced in the process of gas cleaning are accumulated in dumps located near metallurgical plants. Such dust contains harmful impurities (Zn, As, Pb, and P), thus its recycling by the agglomeration method can lead to either environmental contamination or furnace damage. Hence, prior separation of iron from the impurities is required to improve the efficiency of the recycling process. Here we propose a new hydrometallurgical scheme for extracting iron in the form Na 3 FeF 6 from the liquid phase produced as the result of dust acidic leaching. The ability of Na 3 FeF 6 to interact with NaOH (KOH) with the formation of Fe(OH) 3 has been utilized for separating Fe 3+ ions from F – . The proposed scheme is relatively simple, quick, and inexpensive, thus allowing its use at metallurgical plants to separate Fe from Zn, As, Pb, and P.
ISSN:1047-4838
1543-1851
DOI:10.1007/s11837-021-04866-w