The larger the mica crystal without defects, the higher its economic value. Therefore, in the process of grinding of mica ore, it is necessary to protect the natural crystals of mica from damage as much as possible. The grinding process of mica ore includes two processes of flotation and wind selection. After the vertical roller mill grinding process, the mica monomer is dissociated. Under the action of the chemical agent, the mica becomes a foam product and is separated from the gangue.  Mica flotation can be carried out in an acidic or alkaline slurry, and the long carbon chain amide cations and fatty acid anions are mica collectors. In the mica flotation process, three rough selections and three selections are required to obtain the mica concentrate. The mica wind selection process is generally: crushing → screening and classification → wind selection.After the ore is crushed, the mica is basically formed into a flaky shape, and the gangue mineral feldspar, quartz and the like are in the form of massive particles. 

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