froth flotation grinding mill baeckerei .
Froth Floatation Process YouTube. Copper Flotation Elmhurst College,The copper minerals and waste rock are separated at the mill using froth flotation The copper ore slurry from the grinding mills is mixed with milk of lime simply water and groundup limestone to give a basic pH pine oil yes it comes from trees a byproduct of paper mills to make bubbles an alcohol to strengthen the bubbles .