Process for obtaining phthalic anhydride, starting from ortho-xy

Details Process for obtaining phthalic anhydride, starting from ortho-xy Process for obtaining phthalic anhydride, starting from ortho-xy

1982-05-18

1984-09-18

Raymond, Richard

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

502350, C07D30789

Patent

active

044725876

ABSTRACT:
The present invention concerns a process for obtaining phthalic anhydride by oxidizing ortho-xylene, naphthalene, or mixtures of the two, in the presence of a specific catalyst with a vanadium pentoxide and titanium dioxide base, and also regards the catalyst obtained by enactment of said process.

REFERENCES:
patent: 3799886 (1974-03-01), Felice et al.
patent: 3898249 (1975-08-01), Felice et al.
patent: 4077984 (1978-03-01), Blechschmitt
patent: 4282116 (1981-08-01), Reuter et al.
Landau et al., Chemistry and Industry, Jul. 24, 1961, pp. 1143-1152.

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