Removal of sulfur and mineral matter from coal slurry by a pilot scale wet magnetic separator

In order to remove sulfur and inorganic matter content of coal, high intensity magnetic separation tests were carried out, where % solids in the pulp, current intensity in ampere, feed rate and middling wash water were investigated. Under optimum conditions, a clean coal was obtained having 8.10% ash, 1.56% total sulfur, with a combustible recovery of almost 50% from coal, with 12.70% ash and 2.82% total sulfur.