|About this Abstract
||2014 TMS Annual Meeting & Exhibition
||Celebrating the Megascale: An EPD Symposium in Honor of David G.C.Robertson
||Recovery of Vanadium from a High Ca/V Ratio Vanadium Slag Using Sodium Roasting and Ammonia Leaching
||Song Xu, Mujun Long, Dengfu Chen, Helin Fan, Yuting Chen, Xue Sun
|On-Site Speaker (Planned)
In order to seek an effective extraction process of vanadium, the recovery of vanadium from a high Ca/V ratio vanadium was studied by sodium roasting and ammonia leaching. In the present paper, the oxidation and leaching process of vanadium slag was investigated by XRD, SEM/EDS techniques. The effects of ammonium carbonate concentration, leaching temperature and leaching time on the leaching rate of vanadium were discussed.As indicated in the experimental result, the optimal (NH4)2CO3 concentration is 120g/L, leaching temperature is 60°C and leaching time is 20-25min, respectively. Approximately 92% vanadium was recovered under the optimal conditions. Furthermore, by means of XRD analysis, the phase transformation of the vanadium slag during roasting and leaching process were analyzed and discussed.
||Planned: A print-only volume