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dc.contributor.authorLangová, Šárka
dc.contributor.authorMatýsek, Dalibor
dc.date.accessioned2010-04-16T10:50:09Z
dc.date.available2010-04-16T10:50:09Z
dc.date.issued2010
dc.identifier.citationHydrometallurgy. 2010, vol. 101, issues 3-4, p. 171-173.en
dc.identifier.issn0304-386X
dc.identifier.urihttp://hdl.handle.net/10084/78247
dc.description.abstractThe hydrometallurgical extraction of zinc from EAF dust and steel-making sludge was studied. These materials were treated with sulphuric acid at elevated pressure using microwave heating. More than 92% of zinc can be leached out using 0.3 M acid solution at 260 °C. Fe(II) remained in solution while most of the Fe(III) was precipitated as hematite. The iron concentration in the leach liquor decreased markedly when hydrogen peroxide solution was added at the start of the experiment. In this case, zinc extraction reached almost 99%. The hydrolytic precipitation of ferric sulphate was investigated at 200 °C for a low iron concentration. The reaction was found to be first-order with respect to Fe(III), and the apparent rate constant was 0.01 min− 1.en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.ispartofseriesHydrometallurgyen
dc.relation.urihttp://dx.doi.org/10.1016/j.hydromet.2010.01.003en
dc.subjectzincen
dc.subjectsulphuric aciden
dc.subjectsteel-making wastesen
dc.subjectleachingen
dc.subjecthematiteen
dc.subjectprecipitationen
dc.titleZinc recovery from steel-making wastes by acid pressure leaching and hematite precipitationen
dc.typearticleen
dc.identifier.locationVe fondu ÚKen
dc.identifier.doi10.1016/j.hydromet.2010.01.003
dc.identifier.wos000276255300011


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