Catalyst for producing maleic anhydride
US4206084A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1978 |
| Grant date | Jun 3, 1980 |
| Priority date | — |
| Expiry date | Dec 11, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/215
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.