Table of Contents
Magnetic and Electrical Separation
Volume 8, Issue 1, Pages 41-51

Wet High Intensity Magnetic Separation of Iron Minerals

1School of Chemical Engineering, The University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
2Department of Chemical Engineering, National University of Science and Technology, P.O. Box 346, Bulawayo, Zimbabwe

Received 30 January 1996; Revised 19 March 1996

Copyright © 1996 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.


Four different iron minerals were selected for study, and five size fractions of each mineral were prepared. The magnetic properties of these minerals were measured. The effect of particle size and magnetic susceptibility on wet high intensity magnetic separation was studied simultaneously. It was found that hematite—1 was a strongly paramagnetic mineral, and the effect of particle size in WHIMS was not significant. Goethite and limonite were weakly paramagnetic minerals, and could not be effectively recovered by WHIMS. The magnetic properties of hematite—2 were between hematite—1 and goethite and limonite, and the effect of particle size on WHIMS for hematite—2 was significant.