In addition to oxygen, nitrogen and inert gases, there are carbon dioxide and water vapor in the air.
Air has an effect on the floatability of minerals: (1) When the mineral breaks out to reveal a fresh surface, it undergoes hydration in the presence of water and is hydrophilic. However, when the gas is adsorbed to the surface of the mineral, the hydration is weakened, resulting in a preliminary hydrophobicity of the surface. (2) Gas and mineral surface applications are selective. Among them, oxygen is a major influence on the mineral surface. (3) The role of oxygen is beneficial to the hydrophobicity of the cut-off of the sulfide ore. However, if the action time is too long, the mineral surface will return to hydrophilicity. When gas adsorbing appropriate conditions, cause the hydrophobic mineral surface, even without flotation can be (e.g. dried coal powder) where the flotation agent. And galena also only after preliminary action of oxygen can occur with xanthate and floating effect.Kids Ride Train,Kids Electric Train,Electric Fun Train,Children Play Train Ride
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