Catalyst for the preparation of phthalic anhydride
US4489204A · kind A · utility
13Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1982 |
| Grant date | Dec 18, 1984 |
| Priority date | — |
| Expiry date | Dec 27, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J35/66
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst for the preparation of phthalic anhydride is disclosed which comprises a carrier having an open arcuate configuration, e.g. in the form of half rings, and an active portion including V.sub.2 O.sub.5 and porous TiO.sub.2 with the pores having mostly a radius in the 500 to 1,500 .ANG. range. Also described is a method of preparing phthalic anhydride which utilizes this catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.