Mineralogical and Chemical Characteristics of Slags from the Pyrometallurgical Extraction of Zinc and Lead

The slags derived from the fire refining of lead bullion, differ distinctly in the mineral composition, which results from the fact that these slags are end products of a series of chemical reactions (of both reduction and oxidation). The most common phases included in the refining slags are sulphat...

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Main Author: Katarzyna Nowinska
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Minerals
Subjects:
Online Access:https://www.mdpi.com/2075-163X/10/4/371
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author Katarzyna Nowinska
author_facet Katarzyna Nowinska
author_sort Katarzyna Nowinska
collection DOAJ
description The slags derived from the fire refining of lead bullion, differ distinctly in the mineral composition, which results from the fact that these slags are end products of a series of chemical reactions (of both reduction and oxidation). The most common phases included in the refining slags are sulphates and hydrated sulphates (anglesite, gypsum, ktenasite and namuvite), oxides and hydroxides (wustite and goethite), nitrates (gerhardtite) and silicates (kirschsteinite and willemite). The other phases are sulphides and hydrated sulphides (sphalerite and tochilinite), metals (metallic Pb) and glass. Among the mineral components of these slags can be distinguished—primary mineral constituents, phase constituents formed in the ISP process and lead refining, secondary mineral constituents, formed in the landfill. The slags contain, in chemical terms, mainly FeO, CuO and SO<sub>3</sub>, PbO, in smaller contents SiO<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub> and CaO, TiO<sub>2</sub>, MnO, MgO, K<sub>2</sub>O, P<sub>2</sub>O<sub>5</sub>. The mineralogical and chemical composition indicate that slags may be a potential source of metals recovery and pyrometallurgical processing of these wastes seems to be highly rational.
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spelling doaj.art-0b52e5057d28494b938fe07b3a60c8702023-11-19T22:11:43ZengMDPI AGMinerals2075-163X2020-04-0110437110.3390/min10040371Mineralogical and Chemical Characteristics of Slags from the Pyrometallurgical Extraction of Zinc and LeadKatarzyna Nowinska0Department of Applied Geology, Faculty of Mining, Safety Engineering and Industrial Automation, Silesian University of Technology, ul. Akademicka 2, 44-100 Gliwice, PolandThe slags derived from the fire refining of lead bullion, differ distinctly in the mineral composition, which results from the fact that these slags are end products of a series of chemical reactions (of both reduction and oxidation). The most common phases included in the refining slags are sulphates and hydrated sulphates (anglesite, gypsum, ktenasite and namuvite), oxides and hydroxides (wustite and goethite), nitrates (gerhardtite) and silicates (kirschsteinite and willemite). The other phases are sulphides and hydrated sulphides (sphalerite and tochilinite), metals (metallic Pb) and glass. Among the mineral components of these slags can be distinguished—primary mineral constituents, phase constituents formed in the ISP process and lead refining, secondary mineral constituents, formed in the landfill. The slags contain, in chemical terms, mainly FeO, CuO and SO<sub>3</sub>, PbO, in smaller contents SiO<sub>2</sub>, Al<sub>2</sub>O<sub>3</sub> and CaO, TiO<sub>2</sub>, MnO, MgO, K<sub>2</sub>O, P<sub>2</sub>O<sub>5</sub>. The mineralogical and chemical composition indicate that slags may be a potential source of metals recovery and pyrometallurgical processing of these wastes seems to be highly rational.https://www.mdpi.com/2075-163X/10/4/371slagsmineral compositionchemical compositionpyrometallurgyzinclead
spellingShingle Katarzyna Nowinska
Mineralogical and Chemical Characteristics of Slags from the Pyrometallurgical Extraction of Zinc and Lead
Minerals
slags
mineral composition
chemical composition
pyrometallurgy
zinc
lead
title Mineralogical and Chemical Characteristics of Slags from the Pyrometallurgical Extraction of Zinc and Lead
title_full Mineralogical and Chemical Characteristics of Slags from the Pyrometallurgical Extraction of Zinc and Lead
title_fullStr Mineralogical and Chemical Characteristics of Slags from the Pyrometallurgical Extraction of Zinc and Lead
title_full_unstemmed Mineralogical and Chemical Characteristics of Slags from the Pyrometallurgical Extraction of Zinc and Lead
title_short Mineralogical and Chemical Characteristics of Slags from the Pyrometallurgical Extraction of Zinc and Lead
title_sort mineralogical and chemical characteristics of slags from the pyrometallurgical extraction of zinc and lead
topic slags
mineral composition
chemical composition
pyrometallurgy
zinc
lead
url https://www.mdpi.com/2075-163X/10/4/371
work_keys_str_mv AT katarzynanowinska mineralogicalandchemicalcharacteristicsofslagsfromthepyrometallurgicalextractionofzincandlead