Vanadium/phosphorus mixed oxide catalyst
US6956004B2 · kind B2 · utility
12Cited by
5References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2004 |
| Grant date | Oct 18, 2005 |
| Priority date | — |
| Expiry date | Mar 8, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2523/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Active vanadium/phosphorus mixed oxide catalyst for the conversion of non-aromatic hydrocarbons, e.g., n-butane, into maleic anhydride. The catalyst is prepared from the catalyst precursor, that is, prepared by the reaction of a source of vanadium in an organic medium in the presence of a phosphorus source. The organic medium is (a) isobutyl alcohol or a mixture of isobutyl alcohol and benzyl alcohol and (b) a polyol. The catalyst precurso is transformed into the active catalyst by an activation process that includes a heat treatment that includes applying a temperature of up to 600° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.