进行了硫化铜矿无捕收剂浮选的工业试验。试验证明,铜精矿的质量和回收率均与用捕收剂的浮选指标一致。根据矿物结构和矿浆条件,有三种无捕收剂浮选,即(1)天然可浮性,它是由于硫化矿物(辉钼矿)的层状结构而引起的;(2)自诱导可浮性, An industrial test for copper sulfide ore-free flotation was conducted. Tests show that the quality and recovery of copper concentrate are consistent with the collector flotation index. Depending on the mineral structure and slurry conditions, there are three collectorless flotation types, namely (1) natural floatability due to the layered structure of sulphide minerals (molybdenite); (2) self-induced floatable Sexuality,