Table of Contents
Magnetic and Electrical Separation
Volume 9, Issue 3, Pages 131-148

Effects of Microwave Radiation Upon the Mineralogy and Magnetic Processing of a Massive Norwegian Ilmenite Ore

School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK

Received 4 May 1998; Accepted 14 July 1998

Copyright © 1999 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The effect of microwave radiation upon the mineralogy and magnetic processing of a massive Norwegian ilmenite ore is presented. Short exposure to microwave radiation has been demonstrated to cause fractures within the ore matrix. Increased exposure to microwave radiation is shown to cause localised sample melting. The microwave treated samples have subsequently undergone a multi-stage magnetic separation process which produced concentrates of significantly higher grade and also better recovery of valuable mineral, when compared to those that are nontreated. Conclusions are made regarding further development and implementation of this technology.