Abstract:Lithium-containing ceramic clay ore is a super-large lithium ore discovered and mined in recent years, mainly consisting of mica, feldspar, and quartz. Its chemical composition is characterized by lithium content, aluminum rich potassium sodium, low iron, and high silicon. Lithium mainly exists in the form of lithium mica and lithium muscovite, and the gangue is feldspar and quartz. Detailed process mineralogical research was conducted on the mineral sample to determine its mineral composition and content, occurrence state of valuable elements, and main mineral distribution characteristics. Based on this, lithium mica flotation and mica tailings feldspar/quartz separation experiments were carried out. The research results show that after grinding and desliming, sodium hexametaphosphate was used as an inhibitor, and efficient mica collector NM-1 was used. A lithium mica concentrate with Li2O grade of 1.70% and recovery rate of 84.30% was obtained from the raw ore containing 0.28% Li2O through a closed-circuit test consisting of one roughing-two concentration-two sweepin. The lithium mica tailings were separated using an acidic fluorine-free feldspar/quartz separation process to obtain feldspar products with Al2O3 content of 17.19%, K2O and Na2O content of 9.91%, and whiteness of 68.1%, as well as quartz products with SiO2 content of 99.78%, Fe2O3 content of 0.006%, and whiteness of 90.4%. Developing and utilizing lithium resources while achieving high-value comprehensive utilization of feldspar and quartz in tailings.