The flotation

Froth flotation is a technique that enables solids to be separated from others by using the differences in their surface properties (hydrophobicity >< hydrophilic) when put in the presence of air in a stirred tank. The material, pulped after wet grinding to less than 250 µm, is conditioned through the addition of a chemical reagent called a collector, whose role is to selectively make the floating mineral surface hydrophobic.

CTP has a range of equipment from laboratory to pilot scale for batch on continuous operation.

Equipment	Volume	Operation	Solid flow
Laboratory cells	1-8 L	Batch	-
Mini-pilot cells	10-40 L	Batch/continuous	10-100 kg/h
Mini-pilot flotation bank	22 x 10 L	Continuous	10-100 kg/h
Pilot flotation bank	2 x 710 L	Continuous	500-1000 kg/h
Pilot flotation column	12.5 L	Continuous	300 kg/h