Treatment for virgin phosphorous/vanadium oxidation catalysts
US5446000A · kind A · utility
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3References
11Claims
0Family size
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Key dates
| Filing date | Mar 14, 1994 |
| Grant date | Aug 29, 1995 |
| Priority date | — |
| Expiry date | Mar 14, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/515
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of removing chloride from phosphorus/vanadium/oxygen mixed oxide oxidation catalysts comprising treating a chloride containing catalyst comprising phosphorus, vanadium and oxygen with a stream of gas comprising oxygen, steam and an inert gas at flow rate and temperature and for a period of time to substantially reduce the amount of chloride in the catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.