Phosphorus/vanadium catalyst preparation
US5480853A · kind A · utility
4Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1994 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | Jul 15, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J27/19
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A vanadium/phosphorus mixed oxide catalyst containing not more than 0.2 wt % chloride is produced by drying chloride containing catalyst precursor at 100.degree.-180.degree. C., calcining the dried precursor, preferably under nitrogen, at 200.degree.-300.degree. C. and activating the calcined precursor at 350.degree.-550.degree. C. with a gas containing oxygen and a reducing agent such as propane, and preferably steam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.