Potassium butyl xanthate is a most powerful collector with strong selectivity,widely used in the flotation treatment of sulfide ores,zinc ores and nickel ores,especially for the flotation treatment of Cu-Ni compound sulfide ore as well as gold mine associated with pyrite.it can also get satisfactory results when used in lead oxide copper ores.commonly used in the process of rough flotation and scavenging flotation.