Hydrometallurgical Recovery of Cobalt(II) from Spent Industrial Catalysts
Zuzanna Wiecka , Martyna Rzelewska-Piekut , Ryszard Cierpiszewski , Katarzyna Staszak , Magdalena Regel-Rosocka
AbstractThe work presents studies on the application of hydrometallurgical recovery of cobalt(II) from solutions after leaching spent industrial catalysts used in process of hydrodesulfurization. A four-stage process was proposed, which consists of: leaching, precipitation of metal hydroxides accompanying Co(II), extraction of Co(II) with bis(2,4,4-trimethylpentyl)phosphinic acid and Co(II) stripping from the organic phase. The results indicate that by using the proposed method it is possible to leach Co(II) and Mo(VI) from spent catalyst, and remove main impurities such as Al(III), Fe(III) in hydroxide precipitation step and separate Co(II) from Mo(VI) by extraction and stripping.
|Journal series||Catalysts, ISSN 2073-4344, (N/A 100 pkt)|
|Publication size in sheets||0.6|
|Keywords in Polish||zużyty katalizator; odzysk kobaltu; katalizator hydroodsiarczania; ługowanie; hydrometalurgia; ekstrakcja ciecz-ciecz; Cyanex 272|
|Keywords in English||spent catalyst; cobalt recovery; hydrodesulfurization catalyst; leaching; hydrometallurgy; liquid-liquid extraction; Cyanex 272|
|Score||= 100.0, 20-05-2020, ArticleFromJournal|
|Publication indicators||= 0; : 2018 = 0.912; : 2018 = 3.444 (2) - 2018=3.808 (5)|
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