Sequential extraction of vanadium and chromium from chromium-bearing vanadium slag through two-stage soda roasting-water leachingHelin Fan, Huamei Duan, Wenjie He, Dengfu Chen, Tao Liu, Mujun Long and Pei XuMetall. Res. Technol., 115 6 (2018) 607DOI: https://doi.org/10.1051/metal/2018093
