Process for the separation by flotation of sulfides of copper and lead sequentially obtained in bulk flotation of minerals of zinc, copper and lead.

摘要

Process for the separation by flotation of sulfides of copper and lead sequentially obtained in bulk flotation of minerals of zinc, copper and lead.The present invention is the process for separation by flotation of sulfides of copper and lead sequ00b3encial obtained from bulk flotation of minerals of zinc,Copper and lead characterized by presenting the steps: (a) obtaining concentrate of flotation bulk with lead and copper minerals and reject with zinc ore and silicate.Part of the zinc ore, esfalerita, is incorporated into the bulk concentrate; (b) to concentrate the bulk flotation is added sodium sulphite (1) and zinc sulfate (2),In addition to the controller and modulator of pH (3),Since the flotation of copper concentrate or calcopirita (4) and (5) ore tailings of lead and zinc or galena dragged the bulk concentrate; (c) the flotation tailings of copper (5) adds a sodium silicate (6), zinc sulfate (9) and isobutyl xantato (8),And if the flotation of ore lead or galena (9) and the depression of zinc ore (10) which is waste; (d) reject (10) of the flotation of lead containing most of the ZInco or esfalerita dragged to the concentrate is incorporated into the stage of bulk flotation of zinc.