Catalyst for producing maleic anhydride

Details Catalyst for producing maleic anhydride Catalyst for producing maleic anhydride

1978-12-11

1980-06-03

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252464, 26034675, B01J 2104, B01J 2112, B01J 2322, B01J 2328

Patent

active

042060842

ABSTRACT:
A catalyst for, and method of, producing a reaction product predominantly of maleic anhydride, that is a product of reaction containing a ratio of maleic to citraconic anhydrides of at least 25 to 1, respectively, and preferably greater than about 100 to 1, respectively, by reacting a feed stream consisting of oxygen or an oxygen-containing gas and an organic C.sub.5 feed predominantly of piperylene and dicyclopentadiene, and preferably predominantly dicyclopentadiene, at bath temperatures of from about 360.degree. to about 450.degree. C. over a catalyst comprising a mixture of 25 to 60 weight percent titanium oxide (TiO.sub.2), 5 to 40 weight percent molybdenum oxide (MoO.sub.3) and 30 to 60 weight percent vanadium oxide (V.sub.2 O.sub.5) on an alpha alumina or alumina-silica carrier having less than about one square meter per gram (<1 m.sup.2 /g) surface area.

REFERENCES:
patent: 2079490 (1937-05-01), Conover
patent: 3086026 (1963-04-01), Wiebusch
patent: 3106569 (1963-10-01), Robinson

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