FLOATING PROCEDURE TO OBTAIN DIFFERENTIAL CONCENTRATES OF COPPER, LEAD AND ZINC, FROM COMPLEX SULFIDES, IN OXIDIZING MEDIA

摘要

The method consists of subjecting a ground pyrites material to an oxidn. process, pref. with air, at a pH value and redox potential suitable for achieving the differential flotation. This is carried out in total absence of sulphur dioxide and alkaline sulphites.