International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

On the manufactured enlarged version of the flotation device with a high-pressure rotary pulsating aerator (HFRPA), investigations and tests were conducted on refractory finely minified gold-bearing ore samples. The experiment and practice of flotation with the developed by the authors HFRPA showed that the pressure fluctuations created by the aerator ensure the efficiency of the functional use of the two periods. Which is the dissolution of additional gases in the high-pressure compression period, which ensures the aeration process with the required amount of dissolved gases and pseudo cavitation emission of gases in the medium rarefaction period, and this provides aeration with gas separation from the aqueous phase directly on hydrophobic mineral micro particles, i.e. micro dispersions selective flotation.