Catalyst for the preparation of maleic anhydride

Details Catalyst for the preparation of maleic anhydride Catalyst for the preparation of maleic anhydride

1975-12-01

1977-07-19

Garvin, Patrick P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252435, 2603468M, B01J 2714, C07D30760

Patent

active

040367800

ABSTRACT:
A catalyst for the preparation of maleic anhydride by vapor phase catalytic oxidation of benzene with a molecular oxygen containing gas comprising a porous inert support of an alkali metal content, calculated as oxide, of at most 0.3 % by weight and supported thereon a catalytic substance of a constituent composition comprising (a) 1 mole of vanadium pentoxide, (b) 0.3 to 1.2 moles of molybdenum trioxide, (c) 0.005 to 0.05 moles of phosphorus pentoxide, (d) 0.03 to 0.2 moles of sodium oxide and (d) 0 to 0.05 moles of potassium oxide.

REFERENCES:
patent: 2967185 (1961-01-01), Becker et al.
patent: 3156706 (1964-11-01), Kerr
patent: 3211671 (1965-10-01), Egbert
patent: 3226337 (1965-12-01), Riemenschneider et al.
patent: 3255211 (1966-06-01), Kerr
patent: 3288721 (1966-11-01), Kerr
patent: 3535346 (1970-10-01), Sudo et al.
patent: 3917655 (1975-11-01), Di Cio et al.

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