Copper-sulfur ore separation method

The invention relates to a copper-sulfur ore separation method. The method is characterized by comprising the following steps of: grinding raw copper-sulfur ores, size mixing, and adding quicklime to regulate the pH value of ore slurry; performing roughing, cleaning and scavenging by adding water glass or sodium sulfide and butyl xanthate in turn so as to obtain copper-sulfur bulk concentrate and cleaner tailings as well as mixed floating scavenger concentrate and scavenger tailings; grinding the copper-sulfur bulk concentrate, size mixing, adding the quicklime to regulate the pH value of the ore slurry, and adding the butyl xanthate for roughing so as to obtain copper rougher concentrate and copper rougher tailings; adding the water glass or the sodium sulfide and the butyl xantheate into the copper rougher concentrate for cleaning so as to obtain copper concentrate and sulfur concentrate; scavenging the copper rougher tailings to obtain floating copper scavenger concentrate and floating copper scavenger tai