Application method of combined reagent in copper and sulphur separation of ore beneficiation of covellite predominantly copper sulfide ore

The invention relates to an application method of a combined reagent in copper and sulphur separation of ore beneficiation of covellite predominantly copper sulfide ore. The invention comprises the following steps: size mixing with lime after grinding of raw ores to enable the pH value of raw ore pulps to be 7 to 12, utilizing loatation an O - isopropyl - N - sulfur ethyl carbamate and sodium butyl xanthogenate to obtain an accumulated opper and sulphur mixing concentrate; grinding the accumulated copper and sulphur mixing concentrate to reach the required grinding fineness in the copper and sulphur separation, and directly putting the combined reagent with the lime and an copper collector into the copper and sulphur separation work to activate easy oxidized copper blue minerals and restrain iron pyrites to the effective separation of the copper and the sulphur. Utilizing the application method of the combined reagent in copper and sulphur separation of ore beneficiation of covellite predominantly copper sulf