Phase Transformation Behavior of Lead and Zinc in the High-Lead Slag Reduction Process
Document Type
Article
Publication Date
5-2-2021
Department
Department of Materials Science and Engineering
Abstract
The phase transformation behavior of lead and zinc in the high-lead slag reduction process was reported in this article. First, the occurrence state of lead and zinc in the slag and the phase transformation behavior of lead and zinc during reduction were investigated. Following, the thermodynamic modeling calculation for the reduction process was constructed and discussed. The results indicated that the zinc in the high-lead slag mainly existed in the form of zinc ferrite and silicate while the lead mainly existed in a silicate form. The XRD patterns of the reduced slag at different coal ratios demonstrated that the lead existing in the high-lead slag in a silicate form could be reduced into the metal phase while the zinc existing in the high-lead slag in the form of zinc ferrite (ZnFe O ) could be converted into zinc silicate (Zn SiO ), as the coal ratio increased. The thermodynamic modeling calculation results showed an agreement with the experiment analysis.
Publication Title
Russian Journal of Non-Ferrous Metals
Recommended Citation
Zhang, Z.,
Li, W.,
Zhan, J.,
Li, G.,
Zhao, Z.,
&
Hwang, J.
(2021).
Phase Transformation Behavior of Lead and Zinc in the High-Lead Slag Reduction Process.
Russian Journal of Non-Ferrous Metals,
62(2), 139-146.
http://doi.org/10.3103/S1067821221020152
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/14897