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\bibitem{Kim_etal2016} {\textquotedblleft}\textit{New method for selective Cr recovery from stainless steel slag by NaOCl assisted alkaline leaching and consecutive BaCrO$_{4}$ precipitation}{\textquotedblright}. Kim E, Spooren J, Broos K, Nielsen P, Horckmans L, Vrancken KC, Quaghebeur M, Chemical engineering journal \textbf{295}, 542 (2016).   http://doi.org/10.1016/J.CEJ.2016.03.073

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