Abstract:

Every year, about 1 million tons of tailings from 03 apatite processing plants in Tang Loong, Cam Duong, and Bac Nhac Son in Lao Cai province are stored in tailings dams. Of which, the apatite content in tailings at Bac Nhac Son processing plant is the highest with a content of 6–8% P2O5. The solution to recover apatite from tailings at processing plants has been included in the implementation plan of production units. Therefore, the research on the recovery of apatite in tailings is not only of scientific significance but also oriented towards practical application in production and resource recovery. The article presents the results of the research on the recovery of apatite from tailings at Bac Nhac Son processing plant at the laboratory scale on a column flotation device. The research results not only provide suitable technical solutions to recover apatite from tailings but also have great significance in recovering mineral resources in the context of a circular economy, reducing the area of tailings dumps and economic efficiency for enterprises.