High-gradient magnetic separator SLon-1250

particleprocessfor the recycling industry

Ilmenite is always used as the raw material for titanium powder production, which is a white pigment widely applied in modern industry. Ilmenite can also be processed into titanium metals, as an additive in titanium alloys, which is an essential material for modern supersonic aircraft, rockets, missiles and space shuttles manufacturing. In China, ilmenite is often associated with magnetite, most of which exist in the magnetite tailings with a low grade. Besides, the particle size of the tailings is fine, and the mud content is large. All of these requires a combined processing technology to achieve the beneficiation index. In the past, “gravity separation+desulfurization floatation+electrical separation” used to be adapted. However, the process was complex, and the lower limit of gravity separation was about 30 microns, leading to a great waste of fine grained ilmenite. The final recovery rate of TiO2 was only about 10%, which seriously affected the beneficiation efficiency and benefits of mining plants. In view of these features, SLon has replaced original gravity separation with magnetic separation. Through a series of research on ilmenite beneficiation, our technicists have made corresponding improvements in our magnetic separators since 1994. Firstly, for the low recovery rate of ilmenite, our technicists adjust the magnetic structure and magnetic field intensity, which increases the separation area and separation time. The effective separation size is greatly reduced to 20μm. Compared with the gravity separation operation, the recovery rate is more than 20% higher than before. And SLon magnetic separators also perform better among similar magnetic separators.