When flotation agents to use a variety of regulation for the chemical and physical properties of the medium and flotation, so as to expand the gold content of gold minerals or with gangue differences between ryukyu and water affinity, make better separation, achieve the goal of raising gold recovery. Commonly used flotation agent in three broad categories: collecting agent, foaming agent, adjustment agent.
With hydrophilic group and hydrophobic groups on the surface of reactive molecules, a directional adsorption on water air interface, reduce the surface tension of the aqueous solution, the air into the water to diffuse into bubbles and stability of bubbles. Foaming agent and collector adsorbed on the surface, mineral grain together make ore grain of buoyancy. Common foaming agent are: pine oil, commonly known as the no. 2 oil and phenol acid mixed fatty alcohols, heterogeneous hexanol or sheen drunk drunk, ether and various esters etc.