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| Research progress and prospects in the flotation separation of mica and quartz |
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Received:February 18, 2025
Revised:March 04, 2025
Accepted:March 17, 2025
Published Online:April 30, 2026
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| DOI：10.3969/j.issn.1005-7854.2025.06.001 |
| KeyWord:mica;quartz;flotation separation;collector;inhibitor |
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| 1.Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China;2.Yunnan Key Laboratory of Green Separation and Enrichment of Strategic Metal Mineral Resources, Kunming 650093, China;3.Southwest Joint Graduate School, Kunming 650500, China |
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| Abstract: |
| Mica is an important mineral resource rich in various valuable metals, with excellent insulation and high-temperature resistance properties. However, due to the similar physicochemical characteristics between mica and its associated gangue mineral quartz, their flotation separation is often challenging. This paper systematically analyzes the crystal structure and physicochemical properties of mica and quartz, as well as their relationship with floatability, and provides a comprehensive review of flotation separation techniques, including collectors, depressants, and related mechanisms. Research indicates that cationic amine reagents are the primary collectors for mica flotation, while the development and application of combined cationic-anionic collectors, novel collectors, and ion-selective activation represent key research directions. For quartz, although inorganic depressants such as sodium silicate and sodium hexametaphosphate are widely used, they still have limitations. Future efforts should focus on the development of organic depressants, combined depressants, and novel depressants. Furthermore, in-depth studies on the interaction mechanisms between mica/quartz and flotation reagents can provide theoretical guidance for the development and application of new flotation reagents. |
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