Liberation of metallic-bearing minerals from host rock using microwave energy
Document Type
Conference Proceeding
Publication Date
3-17-2012
Department
Department of Materials Science and Engineering
Abstract
It has been demonstrated that metallic-bearing minerals are physically liberated from host rock when exposed to microwave (MW) energy. The metallic minerals are iron sulfides and spinel oxide minerals contained in peridotite rock. Experimental evidence has shown ore particles readily couple with MW energy at 2.45 GHz, 1000 W resulting in rapid heating. Thermal stresses are generated by highly absorbing metallic-bearing minerals resulting in cracking and embrittlement of ore particles that assists in crushing and grinding processes. The liberated metallic-bearing minerals are shown to report to coarser size fractions as a result of MW exposure.
Publication Title
TMS Annual Meeting
ISBN
9781118291412
Recommended Citation
Andriese, M.,
Hwang, J.,
&
Peng, Z.
(2012).
Liberation of metallic-bearing minerals from host rock using microwave energy.
TMS Annual Meeting, 383-390.
http://doi.org/10.1002/9781118364987.ch47
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/3399