METHOD FOR RECOVERING A COPPER SULFIDE FROM AN ORE CONTAINING AN IRON SULFIDE

摘要

In a method for recovering a copper sulfide concentrate by froth flotation from an ore containing an iron sulfide, hydrogen peroxide is added to the conditioned mineral pulp before or during flotation, a concentration of dissolved oxygen is determined in the mineral pulp after addition of hydrogen peroxide and the amount of hydrogen peroxide added is adjusted to maintain a concentration of dissolved oxygen of from 1 to 5 times a predetermined target concentration, in order to adjust the amount of hydrogen peroxide to changes in ore composition.

主权项

1. A method for recovering a copper sulfide from an ore containing an iron sulfide, comprising the steps of:
a) wet grinding the ore with grinding media to form a mineral pulp, b) conditioning the mineral pulp with a collector compound to form a conditioned mineral pulp, and c) froth flotation of the conditioned mineral pulp to form a froth and a flotation tailing, separating the froth from the flotation tailing to recover a copper sulfide concentrate, wherein hydrogen peroxide is added to the conditioned mineral pulp between steps b) and c) or during step c), a concentration of dissolved oxygen is determined in the mineral pulp after addition of hydrogen peroxide and the amount of hydrogen peroxide added is adjusted to maintain a concentration of dissolved oxygen of from 1 to 5 times a predetermined target concentration.