Metal extraction from vanadyl-mesotetraphenylporphyrin (VO-TPP), dissolved in toluene, by means of trifluoroacetic acid and isoperfluorooctanoic acid, was studied as a model for acid demetallization in crude oils. E.p.r., u.v.-vis. and h.p.l.c. techniques have been used. Evidence of the formation of an adduct between VO-TPP and perfluorinated acids in toluenic solutions has been confirmed, while in pure acid solution a different behaviour has been observed. Demetallization of the porphyrin occurs in isoperfluorooctanoic acid whilst in trifluoroacetic acid oxidation of vanadium occurs after the demetallization

Lerda, D., Bolzacchini, E., Montanari, L. (1992). E.p.r. u.v.-vis. and h.p.l.c. studies of the behaviour of vanadyl-mesotetraphenyl-porphyrin in the presence of perfluorinated acids. FUEL, 71(10), 1153-1159 [10.1016/0016-2361(92)90097-8].

E.p.r. u.v.-vis. and h.p.l.c. studies of the behaviour of vanadyl-mesotetraphenyl-porphyrin in the presence of perfluorinated acids

Bolzacchini, E;
1992

Abstract

Metal extraction from vanadyl-mesotetraphenylporphyrin (VO-TPP), dissolved in toluene, by means of trifluoroacetic acid and isoperfluorooctanoic acid, was studied as a model for acid demetallization in crude oils. E.p.r., u.v.-vis. and h.p.l.c. techniques have been used. Evidence of the formation of an adduct between VO-TPP and perfluorinated acids in toluenic solutions has been confirmed, while in pure acid solution a different behaviour has been observed. Demetallization of the porphyrin occurs in isoperfluorooctanoic acid whilst in trifluoroacetic acid oxidation of vanadium occurs after the demetallization
Articolo in rivista - Articolo scientifico
crude oil, e.p.r., h.p.l.c.
English
1992
71
10
1153
1159
none
Lerda, D., Bolzacchini, E., Montanari, L. (1992). E.p.r. u.v.-vis. and h.p.l.c. studies of the behaviour of vanadyl-mesotetraphenyl-porphyrin in the presence of perfluorinated acids. FUEL, 71(10), 1153-1159 [10.1016/0016-2361(92)90097-8].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/33681
Citazioni
  • Scopus 4
  • ???jsp.display-item.citation.isi??? 2
Social impact