Separation of mineral raw material in the activated aqueous dispersions of air

The results of investigations into physical-chemical processes proceeding in the dispersed air bubbles in the solutions of surface-active substances are presented. It is established that a specially prepared activated aqueous dispersion of air interacts actively with minerals which attach on the surface of bubbles. A new pneumatic flotation machine and devices adapted to the existing flotation machines are created to obtain dispersion. Using apatite, fluorite, sylvinite, copper-nickel, and antimony ores as an example, the efficiency of their separation is shown under stated conditions.