Table of Contents
Magnetic and Electrical Separation
Volume 4, Issue 2, Pages 107-116

Coal Desulphurisation and Ash Removal in Intensified Magnetic Fields

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

Received 16 June 1992; Revised 17 August 1992

Copyright © 1993 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.


Data is presented demonstrating the effect of high gradient/high strength magnetic fields on a UK coal. Experimentation was carried out using a high–intensity (HIW) magnetic separator and coarser coal fractions were treated on a permanent magnetic roll separator capable of producing exceptionally high magnetic field gradients.

Total sulphur and ash removal data is given for coal fractions after magnetic treatment plus X–ray diffraction and magnetic profile analysis provides identification of the mineral constitution of the ash fraction of the coal.