The research progress on flotation separation reagents of fluorite and calcite

Fluorite is a kind of non-renewable strategic mineral resources, and its application is very broad. China is rich in fluorite reserves, however, there are less rich ore, more lean ore, associated ore and refractory ore, and the fluorite mineral has fine dissemination size and complex symbiosis with gangue minerals, so the conventional physical mineral processing method can not efficiently recover the fluorite resources, resulting in a huge waste of resources. As an effective separation method of fine minerals, flotation is also widely used in fluorite mineral processing. Flotation separation of fluorite and calcite is difficult due to the similarity of surface active sites and homogenization effect of the two minerals. Therefore, the development of efficient flotation agents for these two minerals is a difficult point in the field of fluorite flotation reagents research. Based on the research status of flotation separation reagent of fluorite and calcite, overview of collector, inhibitor types and effects in common use, and the effect of metal ions on the flotation of positive flotation is stressed in this paper, and the direction of future reagent research is analyzed, finally the conclusion of research and development of modified collectors and combined collectors, combined inhibitors and new inhibitors, and the exploration of the positive inhibition effect of metal ions is found out, which is the development trend of the flotation separation reagent of fluorite and the same type of carbonate calcium-containing minerals.