Research on Classified Magnetic Separation of Oolitic Hematite from Guizhou Province

Abstract:

Oolitic hematite is considered to be one of the most refractory ores in the world due to its ultra fine disseminated grain size and complex mineral composition. Various magnetic separation methods were conducted on the oolitic hematite ore samples from Guizhou Province. Because the TFe grades of each size fraction of the grinding products were different from each other, the beneficiation process of “classification – low intensity magnetic separation – high intensity magnetic separation” was finally adopted to guarantee the quality of iron concentrates. After the determined magnetic separation, the relatively good technical indexes are obtained. The TFe grade of iron concentrates is increased from 38.7% to 46.1%, and the iron recovery is 81.7%.

• Periodical: Advanced Materials Research (Volumes 634-638)
• Pages: 3433-3436
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.634-638.3433
• Online since: January 2013
• Authors: Wen Hui Chen, Qin Zhang, Zhi Hui Shen, Mao Jiang
• Keywords: Classification, High Intensity Magnetic Separation, Low Intensity Magnetic Separation - High Intensity Magnetic Separation, Size Fraction

References

[1] Dahe Xiong, Qinglin Yang, Jinqing Xie, Shihu Qian and Guisheng Tang: submitted to Journal of Metal Mine (1999) (In Chinese).

[2] Yun Tang, Anrong Liu, Qiang Yang and Qin Zhang: submitted to Journal of Metal Mine (2011) (In Chinese).

[3] Yafang Ren and Yongfu Yu: submitted to Journal of Metal Mine (2005) (In Chinese).