Enhanced electrostatic separation by reducing stains on HT roll separators

Summary

This study identified ways to prevent high resistance stains forming on electrostatic rolls in mineral sand processing.

Coatings prepared from fine tungsten carbide in a range of polymers were tested in the laboratory and trialled to produce stains and determine the wear resistance of coatings.

Keywords: mineral sand processing, high tension rolls, electrostatic separation, resistance stains, tungsten carbide