Conditioning phosphorus-vanadium-oxygen catalyst
US4253988A · kind A · utility
6Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1979 |
| Grant date | Mar 3, 1981 |
| Priority date | — |
| Expiry date | Oct 26, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/513
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In the preparation of phosphorus-vanadium-oxygen catalyst, where vanadium and phosphorus are contacted under conditions to provide a catalyst precursor with vanadium in the tetravalent state, and the precursor is formed into agglomerations and subsequently calcined at high temperatures, the improvement which comprises wetting the catalyst precursor with an aqueous liquid in an amount sufficient to enhance surface adhesion prior to calcining.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.