Experimental Study of Hematite Melting Reduction under High Temperature
For low-grade and fine disseminated grain size hematite, there is no good effect through traditional mineral separation. In this study, hematite will be smelted directly to separate quartz and hematite.The optimal technological condition is as: reduction time is 60 min, reduction temperature is 1550°C and alkalinity of slag should be controlled between 0.3~0.5 in order to get better slag to form glass ceramics.
Daoguo Yang, Tianlong Gu, Huaiying Zhou, Jianmin Zeng and Zhengyi Jiang
Y. M. Nie et al., "Experimental Study of Hematite Melting Reduction under High Temperature", Advanced Materials Research, Vols. 201-203, pp. 2700-2703, 2011