Normal and iso parafines with low content of aromatics, sulphur and nitrogen as collector for froth flotation

摘要

The present invention relates to a flotation agent comprising a collector hydrocarbon composition comprising more than 80 wt% of iso and normal paraffins, less than 1 wt% aromatics, less than 5 ppm sulphur and less than 1 ppm nitrogen, and having a density of between 0.65 and 0.8 g/cm3 at 15 DEG C, and at least one frothing agent, and to a process for the froth flotation of non-metal and metal ores and sludges.