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Wang X.-H.,Key Laboratory Breeding Base of Complex Nonferrous Metal Resources Cleaning Utilization in Yunnan Province | Wang X.-H.,Key Laboratory of Unconventional Metallurgy | Wang X.-H.,Engineering Laboratory of Microwave Energy Application and Equipment Technology | Peng J.-H.,Key Laboratory Breeding Base of Complex Nonferrous Metal Resources Cleaning Utilization in Yunnan Province | And 14 more authors.
Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | Year: 2012

Based on the fact that the iron ore in Yunnan Huimin is mainly fine-grained impregnation structure whose major iron ore of oxide ore is limonite, the oxide ore was studied, and the iron ore was sorted with the craft of magnetization roasting-low intensity magnetic separation. The effects of the microwave roasting temperature, and the amount of reducing agent, magnetic field strength on the index of separation were investigated. The results show that the preparation concentrate grade is 59.31% and recovery is 81.92% under the condition of roasting temperature of 800°C, amount of reducing agent of 12%, reduction time of 12 min and magnetic field strength of 119.37 kA/cm. It confirms that the method of microwave magnetizing roast of iron ore is feasible, which provides a new way for the difficult separation of iron ore. Source

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