Comprehensive Utilization Research and Application of a Foreign Nickel-Cobalt Ore

Abstract

Aiming at a foreign nickel-cobalt ore resource, based on the identification of the nature of the ore, the process flow of “raw ore scrubbing-cyclone classification-spiral roughing-shaking table selection-magnetic separation and iron removal” is adopted. For many years of production and application of the process flow, when the grades of nickel, cobalt, and ferrochromium of the raw ore are 0.93%, 0.18%, 3.25%, and 14.95%, respectively, the nickel and cobalt recovery rates of light minerals reach 97.60% and 96.08%, respectively, and the chromium content is only 1.19%, which creates favorable conditions for the subsequent wet recovery of nickel and cobalt. At the same time, a chromium concentrate with a chromium grade of 32.13% and a recovery rate of 62.62%, an iron concentrate with an iron grade of 61.94% and an iron recovery rate of 24.48% were obtained, realizing the comprehensive recycling and utilization of this nickel-cobalt ore resource.

Keywords

• nickel
• cobalt
• chromite
• magnetite
• magnetic separation
• gravity separation