Abstract:Taking a copper-nickel ore in Xinjiang as a research object, in response to the serious impact of direct reuse of flotation reture water from copper nickel ore on the effective recovery of copper and nickel, this article investigates the effect of adjusters on the effective recovery of copper and nickel by eliminating flotation return water. Under 100% return water conditions, adopting the bulk flotation process of two roughing-three scavenging-three cleaning to obtain copper nickel mixed concentrate, the mixed concentrate uses activated carbon and lime as adjusters. Adopting a copper nickel separation process of one roughing-two scavenging-two cleaning, a nickel concentrate with nickel grade of 9.78% and recovery rate of 74.23%, a copper concentrate with copper grade of 21.09% and recovery rate of 78.64%, can be obtained. This study can better solve the problem of deteriorating effectively recovering copper and nickel in flotation return water reuse, improve the recovery rate of copper and nickel, and provide important technical support for the reuse of flotation return water in similar copper and nickel mines.
