The Operation of the LAROX PF-50 Pressure Filter at Ellatzite-Med' Flotation Plant, Bulgaria The implementation of Larox pressure belt filter, type Larox PF-50 provided within 68% moisture content of the produced copper concentrate, which allowed good market realisation. The start-up of the pressure filter in 2009 reduced the electricity costs several times and had a positive impact on the technological regime of flotation. This article reveals the investigation results from the operation of the pressure filter according to different situations (density of the pulp, time for filtration, pressure of the material, pressure of the drying air, time for drying with air and other factors)._x000D_
The investment made in the pressure filter application is a guarantee for the successful operation of Ellatzite' flotation plant, Bulgaria in the coming years.