Process of producing a V.sub.2 O.sub.5 -and-alkali-metal-sulfate-containing catalyst for oxidizing SO.sub.2 to SO.sub.3
US4680281A · kind A · utility
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4Claims
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Key dates
| Filing date | Jan 22, 1985 |
| Grant date | Jul 14, 1987 |
| Priority date | — |
| Expiry date | Jan 22, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J27/055
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst is produced in two stages in that prefabricated carrier bodies are impregnated with solutions which contain vanadium and alkalies. When the impregnated carrier bodies have been dried, the conversion activity of the catalyst is increased further in that the catalyst is activated under oxidizing conditions at a temperature of 700.degree. to 1000.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.