Ali NM, Naife TM. Removal of Vanadium and Nickel Ions from Iraqi Atmospheric Residue by Using Solvent Extraction Method. IJCPE [Internet]. 2021 Mar. 30 [cited 2024 May 4];22(1):15-20. Available from: https://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/828