Catalytic treatment of gaseous effluents containing varying amounts of sulfur compounds
US6790422B1 · kind B1 · utility
2Cited by
6References
23Claims
0Family size
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Key dates
| Filing date | Aug 19, 1997 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Nov 29, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B17/165
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Active alumina catalysts, well suited for the Claus reaction, for the hydrolysis of organosulfur compounds and for catalytically removing objectionable sulfur compounds from gaseous effluents comprised thereof, contain a cocatalytically effective amount of sodium values, such effective amount, expressed by weight of Na2O, ranging from 1,200 ppm to 2,700 ppm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.