A process for the high-yield recovery of vanadium from petroleum combustion residues, wherein these residues are: (a) subjected to attach with sodium hydroxide in the presence of an oxidizer, or (b) impregnated with sodium hydroxide, dried at 100 -250 DEG C. and leached with water, to selectively extract vanadium with high yields. The vanadium is precipitated from the alkaline extract by adding H2SO4 up to pH approx 2 and an ammonium salt. The precipitated ammonium polyvanadate is calcinated to vanadium pentoxide
Process for the high-yield recovery of vanadium from petroleum combustion residues
CORIGLIANO, Francesco;DI PASQUALE, Sebastiana;PRIMERANO, Patrizia;
1987-01-01
Abstract
A process for the high-yield recovery of vanadium from petroleum combustion residues, wherein these residues are: (a) subjected to attach with sodium hydroxide in the presence of an oxidizer, or (b) impregnated with sodium hydroxide, dried at 100 -250 DEG C. and leached with water, to selectively extract vanadium with high yields. The vanadium is precipitated from the alkaline extract by adding H2SO4 up to pH approx 2 and an ammonium salt. The precipitated ammonium polyvanadate is calcinated to vanadium pentoxideFile in questo prodotto:
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