To promote the industrialization process of the development and utilization of low grade of phosphorus ore, Yunnan Phosphate Group has been in Yunnan Haikou phosphate rock mining companies and tranquility built a 2 million t / years beneficiation plant. The mineral processing equipment mainly uses the traditional trough flotation machine. The traditional trough flotation equipment has been widely used in the domestic and international phosphate ore dressing industry. Flotation column is a new type of high-efficiency flotation equipment. Compared with trough flotation machine, it has the advantages of simple structure, small floor space, short manufacturing cycle and low energy consumption. In this paper, the research on the beneficiation process of low-grade phosphate ore flotation column is carried out, which provides the basis for the application of flotation column in phosphate ore dressing plant. A Series Vacuum Freeze Drying Equipment Freeze Dried Food Machine,Industrial Food Freeze Dryer,Vacuum Freeze Drying Machine,Alternative Vapor Trap Freeze Dryer Dalian Iceberg Freeze-dry Technology Co.,Ltd , https://www.freezedrydliceberg.com