Static condition process for the preparation of phosphorous/vanadium oxidation catalyst
US5280003A · kind A · utility
2Cited by
12References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 24, 1992 |
| Grant date | Jan 18, 1994 |
| Priority date | — |
| Expiry date | Aug 24, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2523/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improvement in the oxidation catalyst used for the partial oxidation of n-butane and containing vanadium and phosphorus, zinc, lithium and molybdenum mixed oxides which comprises carrying out the crystallization step under static conditions which allows for more uniform conditions for crystal growth. The static conditions are maintained by refluxing the solvent during the period of crystallization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.