|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||7th International Symposium on High Temperature Metallurgical Processing
||Separation of Rhenium and Molybdenum from Molybdenite Concentrate by Microwave-Assisted Roasting
||Tao Jiang, Linfeng Zhou, Guanghui Li, Rong Sun, Zhiwei Peng
|On-Site Speaker (Planned)
The effect of microwave roasting on separation of rhenium and molybdenum from a molybdenite concentrate have been investigated based on evaluation of the heating characteristics of the concentrate in the microwave field. The results show that a variety of operating variables, namely microwave power, sample weight, sample geometry, roasting temperature, roasting time and atmosphere significantly impact on the volatilization ratios of Re and Mo. The optimum conditions for Re-Mo separation are microwave power 1300 W, sample weight 20 g, sample geometry pellets, temperature 600 °C, time 1.5 h, and atmosphere 20 vol.% O2. Under these experimental conditions, the volatilization ratios of Re reaches 88.12%, while that of Mo is just 5.15%. Compared with the conventional roasting process, for the same indexes the roasting time can be cut at least half an hour with microwave irradiation. Microwave-assisted roasting provides an alternative route to separating Re and Mo from molybdenite concentrate.
||Planned: A print-only volume