Solvent conditioning of phosphorus-vanadium-oxygen catalysts
US4359405A · kind A · utility
8Cited by
9References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1980 |
| Grant date | Nov 16, 1982 |
| Priority date | — |
| Expiry date | Dec 22, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2523/00
- WIPO fieldOrganic fine chemistry
- 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 contacting the catalyst precursor with a non-aqueous solvent in an amount sufficient to enhance crush strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.