Maleic anhydride production

Details Maleic anhydride production Maleic anhydride production

1990-10-15

1992-03-10

Dentz, Bernard

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549257, 549260, C07D30760

Patent

active

050951254

ABSTRACT:
A catalyst comprising a phosphorus-vanadium mixed oxide and existing in the form of geometric shapes, such as tablets, provides minimum expansion of the geometric shapes under process reaction conditions, since the catalyst in the form of said geometric shapes has been heated in an inert atmosphere at a temperature within the range of about 343.degree. C. (650.degree. F.) to about 704.degree. C. (1,300.degree. F.) prior to being exposed to an oxygen-containing atmosphere at an elevated temperature. This catalyst is suitable for the oxidation of a hydrocarbon, such as benzene or n-butane, to maleic anhydride.

REFERENCES:
patent: 3977998 (1976-08-01), Freerks et al.
patent: 4396535 (1983-08-01), Bremer et al.
patent: 4699895 (1987-10-01), Edwards

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