Shaped oxidation catalyst structures for the production of malei

Details Shaped oxidation catalyst structures for the production of malei Shaped oxidation catalyst structures for the production of malei

1991-12-20

1992-12-01

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Phosphorus or compound containing same

502527, B01J 2718, B01J 27198, B01J 27185

Patent

active

051680904

ABSTRACT:
Shaped oxidation catalyst structures containing catalytic material comprised of mixed oxides of vanadium and phosphorus which are useful for the production of maleic anhydride via the partial oxidation of nonaromatic hydrocarbons, particularly n-butane, in the vapor phase with molecular oxygen or a molecular oxygen-containing gas are provided. Such structures are characterized by exhibiting (a) a geometric volume of from about 30 percent to about 67 percent of that exhibited by the void space-free solid geometric form, (b) an external geometric surface area/geometric volume ratio of at least about 20 cm.sup.-1, (c) a bulk density of from about 0.4 g/cm.sup.3 to about 1.4 g/cm.sup.3, and (d) a mechanical resistance sufficient to maintain substantially the structural integrity of the shaped structure under handling and use conditions.

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Kirk-Othmer, Encyclopedia of Chemical Technology, 3rd ed., vol. 5, pp. 19 and 20.

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