Using the characteristics of large density of cinnabar and its strong hydrophobicity, mercury ore is usually selected by re-election and flotation combined or single flotation operation. The re-election-flotation combined process is used for ore dressing . The re-elected product is cinnabar. After the tailings are ground, the flotation is obtained by flotation. This process can diversify the company's products, have a good economic effect, and is conducive to environmental protection and civilized production. In the case where the cinnabar particles are extremely fine, the ore composition is complex, the degree of mud is quite large, and the cinnabar product is not needed, it is not suitable to use re-election, but a single flotation method should be used.
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