flotation
Flotation is the removal of matter by entrainment at an interface. In particular, froth flotation is the removal of particulate matter by foaming (frothing).
The term "flotation" was found in the following pages:
Material database: Canadian Certified Reference Materials Project (CCRMP) - CZN-4 Zinc Concentrate
Material database: Canadian Certified Reference Materials Project (CCRMP) - CCU-1c Copper Concentrate
Link database: Australian Government: National Pollutant Inventory: Manganese & compounds
Material database: Canadian Certified Reference Materials Project (CCRMP) - CPB-2 - Lead Concentrate
Journals database: Minerals engineering