Experimental of recovering titanic magnetite from Anyi mine in Yunnan province

An-Yi mine has very large reserves of titanic magnetite,and is of enormous industrial values.On the basis of technological mineralogy,iron minerals were mainly titanic magnetite and ilmenite, and gangue minerals were mostly pyroxene and plagioclase.The dissemination size of titanic magnetite particles was rough and large.Couples of bench tests were carried out by the process of "roughing by weakmagnetic and concentrating by magnetic-screen separator".While the content of-0.074mm fraction in grinding output was 50%,magnetic intensity of roughing was controlled in the section of 100-170KA/m, and the distance of magnetic screen was 70mm,agood concentration indexes were gained with TFe grade of 55.85%and recovery rate of 59.16%.And conditions of pilot test were same as that of bench test,expect the roughing magnetic intensity was adjusted to 143.31kA/m,and final concentrate was obtained with the TFe and TiO2 grade of 53.89%and 13.35%,and TFe and TiO2 recovery rate of 62.24%and 51.69%.