Separation of mineral raw material in the activated aqueous dispersions ofair

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