Abstract:Yunnan province has abundant titanium sand resource; however, its was mainly processed with gravitation concentration methods and the recovery is as low as 20%, which caused a lot of titanium loss into tailings. Therefore, new separation equipments and process are urgently required to improve the separation performance for the titanium sand. Aiming at the characteristics of titanium sand which is seriously weathered and contain abundant slime, coarse particle SLon pulsating high gradient magnetic separator (PHGMS) was applied to directly separate the titanium sand with feed particle size below -5 mm. The separator produced a primary titanium concentrate, with the concentration ratio and discarded tailings mass weight reaching as high as 2.02 (with TiO2 grade improved from 3.00% to 6.06%) and 48.17%; and, its TiO2 recovery loss is only 7.17%, providing a vital technology for the subsequent gravity concentration process. In industry, coarse particle SLon PHGMS roughing-tables cleaning process was applied for this titanium sand, and a final tatinium concentrate assaying 48.05% TiO2 with 59.05% recovery was produced. Key words: Titanium sand; Coarse particle matrix; SLon magnetic separator; Gravity concentration