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2019 | OriginalPaper | Buchkapitel

Iron Recovery from Nickel Slag by Aluminum Dross: Viscosity Evolution in Different Periods

verfasst von : Guangzong Zhang, Nan Wang, Min Chen, Ying Wang, Hui Li

Erschienen in: REWAS 2019

Verlag: Springer International Publishing

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Abstract

Nickel slag can be recycled as one of the excellent secondary sources due to valuable iron resource. Slag viscosity during iron recovery from nickel slag by aluminum dross was studied from 1773 to 1873 K, and the viscosity evolution in different periods was systemically discussed. Experimental results showed that slag viscosity increased suddenly after “FeO”/(“FeO” + Al₂O₃) ratio lower than 0.53, signifying the transition of dominant role from “FeO” to Al₂O₃. Structure investigation by Raman spectra showed the center of curves transferred to higher shift, which indicated the formation of many more complicated structural units during the reduction process. Furthermore, the increasing units ratio (Q² + Q³)/(Q⁰ + Q¹) in [SiO₄]-tetrahedra showed a good agreement with the variation of apparent activation energy.

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Titel: Iron Recovery from Nickel Slag by Aluminum Dross: Viscosity Evolution in Different Periods
verfasst von: Guangzong Zhang
Nan Wang
Min Chen
Ying Wang
Hui Li
Verlag: Springer International Publishing
Buch: REWAS 2019
Print ISBN: 978-3-030-10385-9

Electronic ISBN: 978-3-030-10386-6

Copyright-Jahr: 2019
DOI: https://doi.org/10.1007/978-3-030-10386-6_17

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