Abstract
The effects of roasting, mass ratio of H2SO4 to stone coal, leaching temperature, liquid-to-solid ratio, grinding fineness of stone coal, and two-stage counter-current leaching on the vanadium leaching ratio were studied. The results show that the vanadium leaching ratio of roasted stone coal through two-stage counter-current leaching can reach 65.1% at the mass ratio of H2SO4 to stone coal of 20%, leaching temperature of 95°C, leaching time of 30 h, liquid-to-solid ratio of 1.1 mL·g−1, and grinding fineness of 0.1 mm, which can serve as an experimental basis for the production of vanadium from stone coal.
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Wang, M., Xiao, L., Li, Q. et al. Leaching of vanadium from stone coal with sulfuric acid. Rare Metals 28, 1–4 (2009). https://doi.org/10.1007/s12598-009-0001-y
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DOI: https://doi.org/10.1007/s12598-009-0001-y