Improved vapor phase catalytic oxidation of butane to maleic anhydride
US4668802A · kind A · utility
18Cited by
22References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 18, 1985 |
| Grant date | May 26, 1987 |
| Priority date | — |
| Expiry date | Jan 18, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Oxidation of butane to maleic anhydride using a vanadium-phosphorus oxide catalyst, in oxidized form, wherein the resulting reduced catalyst is separately regenerated. A recirculating solids reactor can be employed. Less than the stoichiometric amount of oxygen, based on the total amount of butane converted, can be employed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.