%0 Journal Article %T Hydrometallurgical Extraction of Vanadium from Mechanically Milled Oil-Fired Fly Ash: Analytical Process Optimization by Using Taguchi Design Method %A R. Parvizi %A Vahdati Khaki, Jalil %A Moayed, Mohammad Hadi %A M. Rezaei Ardani %J Metallurgical and Materials Transactions B %@ 1073-5615 %D 2012