Zinc recovery from steel-making wastes by acid pressure leaching and hematite precipitation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F10%3A86075002" target="_blank" >RIV/61989100:27360/10:86075002 - isvavai.cz</a>

Alternative codes found

RIV/61989100:27350/10:86075002

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Zinc recovery from steel-making wastes by acid pressure leaching and hematite precipitation

Original language description

The 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 solutionat 260 C. Fe(II) remained in solution while most of the Fe(III) was precipitated as hematite. The iron concentration in the leach liquor decreasedmarkedlywhen hydrogen peroxide solutionwas added at the start of the experiment. In this case, zinc extraction reached almost 99%. The hydrolytic precipitation of ferric sulphatewas investigated at 200 C for a lowiron concentration. The reactionwas found to be first-order with respect to Fe(III), and the apparent rate constant was 0.01 min-1.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DM - Solid waste and its control, recycling

OECD FORD branch

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Project

<a href="/en/project/GA104%2F06%2F1606" target="_blank" >GA104/06/1606: Metal oxides and ferrites decomposition by hydrogen chloride at higher temperature</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Hydrometallurgy

ISSN

0304-386X

e-ISSN

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Volume of the periodical

101

Issue of the periodical within the volume

3-4

Country of publishing house

AU - AUSTRALIA

Number of pages

3

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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