Beneficiation method for improving grade of copper-cobalt magnetic concentrate

The invention discloses a beneficiation method for improving the grade of copper-cobalt magnetic concentrate. According to the magnetic separation, magnetic substance and an objective mineral are effectively separated, the method is suitable for oxidized ores containing more magnetic substance, and the grade of the magnetic concentrate can be effectively improved. According to the beneficiation method, a high-gradient magnetic separator is used for low-intensity magnetic separation for the first time, the background field intensity of a low-intensity magnetic separator is low, the gradient of a magnetic field is high, and therefore the strong magnetic substance which cannot be separated by a permanent magnet magnetic separator adopted in the prior art can be separated. The high-gradient magnetic separator with the background field intensity ranging from 0.08 T to 0.15 T is adopted for removing the strong magnetic substance in the magnetic concentrate, and therefore the grade of the copper-cobalt magnetic conc