Preparation method of powdery super-hydrophobic magnetic carrier based on suspension state and application of powdery super-hydrophobic magnetic carrier in mineral flotation

The invention discloses a preparation method of a powdery super-hydrophobic magnetic carrier based on a suspension state and application of the powdery super-hydrophobic magnetic carrier in mineral flotation, which relate to the field of efficient utilization of lean fine impurity refractory ores, apply the super-hydrophobic magnetic carrier as a carrier mineral to mineral flotation, and can solvethe problems of low target mineral grade or high micro-fine particle grade content of the lean fine impurity refractory ores, and thus resource loss. The invention discloses a preparation method of apowdery super-hydrophobic magnetic carrier based on a suspension state. The preparation method comprises the following steps of (1) preparing the powdery magnetic carrier, (2) adjusting the surface roughness of the powdery magnetic carrier, and (3) preparing the super-hydrophobic film on the surface of the powdery magnetic carrier in a suspension system. The three powdery super-hydrophobic magnetic carriers obtained throu