Wenzhou suote pharmaceutical and chemical engineering CO.,LTD , https://www.wzsuotejixie.com Reverse flotation process
The process is mainly used in the separation gel and phosphorus dolomite ore, often in weak acid medium with fatty acids as collector, dolomite phosphate concentrate product is a floating vessel, the discharge rate is generally up to 80 dolomite %. The discharge rate of dolomite and the loss rate of P2O5 are generally (6-10):1. However, it cannot separate siliceous gangue. At the same time, there are shortcomings such as fine particle size, difficulty in transportation and handling of foam products, and there are still problems in finding collectors with appropriate collection performance, good selectivity and excellent inhibitors. Wu Yanni and others used the reverse flotation process of three-stage dosing and three-sweeping in the rough selection, and obtained a satisfactory selection index. When the P2O5 grade of the ore is 27.07%, the MgO content is 4.22%, and the grinding fineness is -0.071mm (-200 mesh) 66.4%, the phosphoric acid is used as the anti-flotation inhibitor, and the P2O5 grade is 32.91%, and Mg0 is 0.92% of high-quality phosphate concentrate, P2O5 recovery rate of 92.88%, MgO elimination rate of 83.33%.