Dithiosphate BS is gold and silver, copper, zinc sulphide ore flotation effective Dithiophosphate BSMajor component:Sodium dibutyl ... gold and silver, copper, zinc sulphide ore flotation effective, basic circuit in the collector on pyrite weak force, the only weak ... , widely used in copper mines and associated gold, silver and precious metal mines in the flotation of nonferrous metals.Specification ...