The synergies between foam fractionation and froth flotation have been explored in a 2009 special issue of the Asia Pacific Journal of Chemical Engineering.
32.
1903 "'Froth flotation "' The process of separating minerals from rock by flotation was developed by Charles Potter and Guillaume Delprat in New South Wales.
33.
Australian inventions include the very old, such as Dethridge water wheel, the froth flotation ore separation process, the instream ore analysis process and the buffalo fly trap.
34.
Zinc sulfide ( sphalerite ) minerals are concentrated using the froth flotation method and then usually roasted using pyrometallurgy to oxidise the zinc sulfide to zinc oxide.
35.
The entire output of the mine was crushed in a ball mill to the size of fine sand before being passed into a bank of froth flotation cells.
36.
Whereas the old gravity methods of concentration, using jigs and Wilfley tables recovered 60 to 80 percent of the copper in the ore, froth flotation recovered 90 to 95 percent.
37.
The ore is crushed on-site, and the molybdenite is separated from the waste material by froth flotation, which mixes pulverized ore into a slurry of air, water, surfactants, and other chemicals.
38.
Sulfide ore, which contributes 77 % of the recoverable copper reserve, is crushed and milled in one of the two concentrators and the copper concentrate is separated out using froth flotation.
39.
U . S . Patent 4915825 describes a froth flotation process for frothing agent, and finely divided coal particles adhere to air bubbles induced into the agent which rise to the surface.
40.
Lower-grade sources of iron ore generally require beneficiation, using techniques like crushing, gravity or heavy media separation, screening, and silica froth flotation to improve the concentration of the ore and remove impurities.
