Extraction of Vanadium from Chinese Black Shale by Roasting Using Na₂CO₃-BaSO₄ Mixture Addition

Abstract:

In this paper, the extraction of vanadium from Chinese black shale by roasting with mixture salt addition was studied. The effect of salt additions, temperature and time on the recovery of vanadium were investigated by mixture salt roasting and 2% H₂SO₄ leaching. The mixture additions of Na₂CO₃-BaSO₄ was used in the roasting process. The optimal roasting conditions for black shale were determined to be 2.5 hours roasting at 760 °C with the mixture additive SB of 10-15%. After being leached with 2% sulphuric acid, the leaching efficiency of vanadium was obtained in 85%. The pollution of waste gas was decreased in the presence of BaSO₄-Fe₂O₃.

• Periodical: Applied Mechanics and Materials (Volumes 448-453)
• Pages: 3912-3915
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.448-453.3912
• Online since: October 2013
• Authors: Xian Zhong Cheng, Kai Xu Chen*, Huai Cheng, Li Ping Zhang
• Keywords: Black Shale, Leaching, Roasting, Salt Addition, Vanadium

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