Table of Contents
Magnetic and Electrical Separation
Volume 6, Issue 1, Pages 19-30

Electrostatic Separation of Pyrite From Coal

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

Received 16 April 1994; Accepted 6 June 1994

Copyright © 1995 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.


This paper reviews the various forms of electrostatic separation available to remove sulphur, in the form of pyrite (FeS2) from coal. Research has been carried out to desulphurise coal using an electrostatic roll separator which uses the corona charging technique. Data is presented here to conflict with previous reports that indicated that the electrostatic roll separator is unable to separate pyrite from coal. Separation was undertaken under various atmospheric conditions, with various feed pretreatments.