The　Wushan　Operation　has　been　studied　as　a　case　study,　particularly　relevant　to　the　copper-molybdenum　separation　circuit,　in　which　efforts　have　been　made　to　improve　the　quality　of　the　molybdenum　concentrate　through　diagnostic　analysis.　A　key　finding　has　been　the　appearance　of　coarser　silicate　minerals　in　the　molybdenum　concentrate　due　to　their　inadvertent　activation　in　flotation.　The　suitable　silicate　minerals　flotation　conditions　occurs,　most　likely,　due　to　upstream　bulk　flotation　regarding　the　usage　of　novel　collectors　and　metal　cations　bearing　process　water.　The　flotation　of　silicate　minerals　can　be　diminished　by　the　implementation　of　water　glass　and　regrinding.　The　mechanisms　underlying　flotation　behaviors　have　been　revealed　by　using　advanced　in-situ　surface　analysis　and　particle　size　analysis　techniques.