Process Introduction:
The beneficiation technology of fluorite ore is mainly manual and flotation. Manual selection is mainly used for fluorite ore with clear boundaries between fluorite and gangue, easy removal of waste stones, and easy identification of various grades of ore; fluorite often coexists with quartz, calcite, barite, and sulfide minerals. Domestic Flotation is commonly used outside, and depending on the mineral composition, flotation of fluorite-fluorite type, carbonate fluorite type and sulfide-fluorite type has its own characteristics.
Fluorite flotation process is suitable for high silt content, impurities mineral and fluorite symbiose, fine disseminated grain-size, etc. complex ore property and difficult separation fluorite ore.
1. Separation of fluorite and sulphide ore: generally, use xanthate collector to emerge sulphide ore, then add fatty acid collector to float fluorite. Another, during flotation processing, add little sulphite inhibitor to guarantee the quality of concentrated fluorite.
2. Separation of fluorite and barite: Generally, use bulk flotation and then separate. During bulk flotation, use oleic acid as collector to get bulk concentrate. The separation of bulk concentrate can use direct flotation or reverse flotation to get concentrated fluorite.
3. Separation of fluorite and quartz: Use fatty acid to collect fluorite and use water glass to restrain quartz. The dosage of water glass should be proper, little dosage have activation for fluorite ore, but is not enough to control quartz. Over dosage will control fluorite ore. Sometimes, to increase the inhibiting effect, it will add some polyvalent metal ion and it will also control calcite.
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