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The research was conducted to determine the influence of the urea concentration in the leaching solutions on the efficiency of recovery of vanadium and iron compounds from the used vanadium catalyst from the node of oxidation of sulfur dioxide to sulfur trioxide.
Lozano L. J., Juan D.: Technical note leaching of vanadium from spent sulphuric acid catalysts, Minerals Engineering, 2001, 5, 543.
Khorfan S., Wahoud A., Reda Y.: Recovery of vanadium pentoxide from spent catalyst used in the manufacture of sulphuric acid, Periodica Polytechnica Ser. Chem. Eng., 2001, 2, 131.
Ksibi M., Elaloui E., Houas A., Moussa N.: Diagnosis of deactivation sources for vanadium catalysts used in SO2 oxidation reaction and optimization of vanadium extraction from deactivated catalysts, Applied Surface Science, 2003, 220, 105.
Anioł S., Korolewicz T., Kubala J.: Odzyskiwanie V2O5 z zużytego katalizatora wanadowego, Materiały II Kongresu Technologii Chemicznej, 1997, 510.
Poczopko S.: Sole podwójne w nasyconych roztworach soli nieorganicznych. Izotermy rozpuszczalności o dwóch punktach załamania, Rocz. Chem., 1962, 36, 111.
Mazurek K.: Wyznaczenie izoterm rozpuszczalności układów trójskładnikowych mocznik - związki wanadu(V) - woda, Praca doktorska, UMK, Toruń, 2004.
Williams W. J.: Oznaczanie anionów, PWN, Warszawa, 1985.