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Thermodynamic and Kinetic Studies of Dissolution of Hematite in Mixtures of Oxalic and Sulfuric Acid


Publication Details
Authors: Vehmaanperä Paula, Salmimies Riina, Häkkinen Antti
Publication year: 2021
Language: English
Related Journal or Series Information: Mining Engineering
Volume number: 73
Issue number: 2
Start page: 39
End page: 40
Number of pages: 2
ISSN: 00265187
JUFO-Level of this publication: 0
Open Access: Not an Open Access publication

Abstract

Better understanding of the mechanisms and kinetics of dissolution can
benefit several industrial processes. For example, iron can be leached
from clays, which can be further used as a raw material in the ceramic
industry. Another important application is the regeneration of ceramic
filter media, which are used in the dewatering of iron ores. Dissolution
of iron oxides in mixtures of acids is fairly uncommon and a less
well-understood phenomenon, but it can result in a more efficient
process. This work also shows that the determination of dissolution
mechanisms and kinetics is not straightforward in different acid
systems.


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Last updated on 2021-04-02 at 08:59