Mechanochemical Effects on the Roasting Behavior of Vanadium-bearing LD Converter Slag in the Air

Mechanical activation study was carried out to enhance the oxidation roasting of the LD converter slag. XRD, SEM/EDS, particle size, specific surface area and thermal gravimetric analysis methods were used to determine the effect of mechanical activation. It has been shown that mechanical activation...

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Bibliographic Details
Published in:ISIJ International 2017/06/15, Vol.57(6), pp.970-977
Main Authors: Xiang, Junyi, Huang, Qingyun, Lv, Xuewei, Bai, Chenguang
Format: Article
Language:English
Subjects:
converter slag
kinetic
mechanochemistry
milling
roasting
vanadium
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Summary:Mechanical activation study was carried out to enhance the oxidation roasting of the LD converter slag. XRD, SEM/EDS, particle size, specific surface area and thermal gravimetric analysis methods were used to determine the effect of mechanical activation. It has been shown that mechanical activation leads to the decrease of particle size, the increase of surface area, and the disorder of the crystal structure. TGA results reveals that mechanical activation not only can decrease the final oxidation temperature by 50 to 100°C, but also significantly decreased the apparent activation energy.
ISSN:0915-1559
1347-5460
DOI:10.2355/isijinternational.ISIJINT-2016-731