Extraction of metal values from waste spent petroleum catalyst using acidic solutions

► Extraction of Mo, Co and Al was carried out using H2SO4 and HNO3 solution. ► Leaching efficiency was significantly higher using H2SO4+HNO3 than only H2SO4. ► Temperature and [HNO3] are found as key factors especially on leaching of Mo. ► Under optimum conditions, 99.7% Mo, 99.6% Co and 14.9% Al we...

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Veröffentlicht in:	Separation and purification technology 2012-11, Vol.101, p.85-90
Hauptverfasser:	Barik, S.P., Park, K.H., Parhi, P.K., Park, J.T., Nam, C.W.
Format:	Artikel
Sprache:	eng
Schlagworte:	aluminum Applied sciences Catalysis Catalysts Catalytic reactions Chemical engineering Chemistry Cobalt Crude oil Crystallization, leaching, miscellaneous separations Exact sciences and technology Extraction General and physical chemistry H2SO4 HNO3 Leaching Molybdenum Nitric acid Particle size petroleum pulp Reactors Recovery solubilization Spent petroleum catalyst sulfuric acid temperature Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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