Preparation of maleic anhydride
US4151116A · kind A · utility
49Cited by
13References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 5, 1977 |
| Grant date | Apr 24, 1979 |
| Priority date | — |
| Expiry date | Aug 5, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/215
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst for the oxidation of butane to produce maleic anhydride comprising a substrate containing phosphorus and vanadium, and optionally also containing an activator, is characterized by the presence of at least one post-deposited promoter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.