|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||9th International Symposium on High Temperature Metallurgical Processing
||Reduction Behavior of Garnierite Using Methane by Roasting-Magnetic Separation Method
||Li Bo, yindong yang, Mansoor Barati, Alexander McLean, Yonggang Wei
|On-Site Speaker (Planned)
In this work, the garnierite type laterite ores from Yunnan province in China were reduced by methane under different conditions followed by magnetic separation to obtain the ferronickel concentrate. The experimental results show that the reduction temperature in the range of 873 K to 1173 K had no noticeable effect on the contents and recoveries of nickel and iron. The contents and recoveries of nickel and iron in the concentrates increased slightly with prolonging of the reduction time. In addition, the contents of nickel and iron decreased with increasing methane concentration, whereas the recoveries of nickel and iron increased. Decreases in the iron content and recovery were observed when the dosage of sodium sulfate varied from 5% to 20% under a reducing temperature of 1073 K and a reducing time of 90 minutes, whereas the nickel content and recovery were gradually increased.