M. Mousa, K. and K. Kouba, S. 2010. Study on Vanadium Recovery from Spent Catalyst Used in the Manufacture of Sulfuric Acid. Iraqi Journal of Chemical and Petroleum Engineering. 11, 2 (Jun. 2010), 49–54. DOI:https://doi.org/10.31699/IJCPE.2010.2.6.